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ICMM-2019 0 Book of Abstracts
ICMM-2019 1 Book of Abstracts
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ICMM-2019
International Conference on Multifunctional Materials
December 19-21, 2019
Sponsored by
Defence Research and Development Organisation (DRDO)
In association with
MRSI, Hyderabad Chapter
Book of Abstracts
Organized by
Geethanjali College of Engineering and Technology Cheeryal (v), Keesara (M), Telangana-501301
www.icmm.gcet.edu.in, [email protected]
ICMM-2019 3 Book of Abstracts
Copyright © Geethanjali College of Engineering and Technology Cheeryal, Keesara, Telangana state, India
All rights reserved. No part of this publication may be reproduced or transmitted, in any form or by
any means, without permission. Any person who does any unauthorized act in relation to this
publication may be liable to criminal prosecution and civil claims for damages.
First Published, 2019
Disclaimer: The views expressed in the articles are those of the Authors/contributors and not
necessarily of the editors and publishers. Authors/contributors are themselves responsible for any
kind of plagiarism found in their articles and for any issues related to paper.
ISBN: 978-93-5396-620-1
Editors:
Dr. G. Neeraja Rani, Professor, Geethanjali College of Engineering and Technology
Dr. J. Anjaiah, Professor, Geethanjali College of Engineering and Technology
Dr. P. Raju, Associate Professor, Geethanjali College of Engineering and Technology
Dr. M. Aruna Bharathi, Professor, Geethanjali College of Engineering and Technology
ICMM-2019 4 Book of Abstracts
FOREWORD
Nowadays the fundamental challenge is to integrate different functions in one material
system especially if the functions seem to leave off each other. Hence, understanding the function-
structure relationships is quintessential so that it helps in developing a competence in the system
approach for multifunctionality. The multifunctionality in materials enables many modern
applications which can improve quality of life and address many important global challenges.
Consequently the interdisciplinary field has recently extended to computational engineering
approaches for virtual material design and even to advanced fabrication schemes considering the
advantage of digitalisation. This has lead to reinforce the objective of enabling and accelerating the
development and manufacture of the products of the future.
The conference aims to bring together leading academicians, scientists, industry personnel,
researchers and research scholars to exchange and share their experiences and research results
about all aspects of manufacturing, material science and engineering. It also provides the premier
interdisciplinary forum for scientists, engineers, and practitioners to present their latest research
results, ideas, developments, and applications in the area of manufacturing, material science and
engineering. ICMM- 2019 plays a significant role in inspiring break through innovations from
fundamentals to technological challenges and applications that are shaping era of Industry.
In the present scenario, the theme of the conference is quite apt and innovative. The
conference will definitely provide an excellent opportunity to the young minds to learn and express
their ideas and a space to interact with celebrious and eminent minds across the globe. This
academic arena will bring innovative minds together to a curiosity driven research to promote an
entrepreneurial culture to the innovations and applications in universities, industry and research
institutions.
We are the ambassadors of “Go Green Initiative” and are bent on saving trees and reduce
e-waste. So we have printed only the abstracts of invited talks and list of contributed talks. The
Abstracts of Oral and Poster Presentations have been made into a single PDF file with separate ISBN
and are available on the conference website. All the participants of the conference can download
this file.
I wish that this conference would ignite the spirit of research.
Conference Chair/convenor
Dr. R. S. Raju Dr. G. Neeraja Rani Dr. J. Anjaiah Dr. M. Aruna Bharathi
ICMM-2019 5 Book of Abstracts
Phone: 9182058187 Website: www.gethanjaliinstitutions.com
Geethanjali
Geethanjali College of Engineering and Technology AUTONOMOUS
(Accredited by NAAC “A” Grade; ECE, CSE, EEE & ME, B. Tech Programs Accredited by NBA; Approved by AICTE, New Delhi; Permanently Affiliated to JNTUH)
Sy. No. 33 & 34, Cheeryal (v), Keesara (M), Medchal District -501 301
Sri. G. R. Ravinder Reddy Chairman, Geethanjali group of institutions
Message
It is a prodigious moment to announce that Geethanjali College of Engineering and Technology is
hosting the First International Conference on Multifunctional Materials (ICMM 2019), in association
with MRSI, Hyderabad Chapter from 19th- 21st December, 2019.
The conference aims to bring leading academicians, experts, innovative researchers and students
under one roof. The conference is a platform for intelligent minds to propel their potential for
driving technological innovation. It promotes a wonderful future for those who would like to master
Material Science.
I congratulate the team for their efforts to provide enriching experience to the participants. I hope
that the team would take the beacon of dynamism further.
Sri. G. R. Ravinder Reddy
Sponsored by TEJA EDUCATIONAL SOCIETY, HYDERABAD Office : Sy. No. 33 & 34, Cheeryal (v), Keesara (M), Medchal District -501 301
ICMM-2019 6 Book of Abstracts
Phone: 9182058187
Website: www.gethanjaliinstitutions.com [email protected]
Geethanjali
Geethanjali College of Engineering and Technology AUTONOMOUS
(Accredited by NAAC “A” Grade; ECE, CSE, EEE & ME, B. Tech Programs Accredited by NBA; Approved by AICTE, New Delhi; Permanently Affiliated to JNTUH)
Sy. No. 33 & 34, Cheeryal (v), Keesara (M), Medchal District -501 301
Prof. (Dr) S. UDAYA KUMAR
B.E., M. E., M. Tech (Hons.) (New Zealand), Ph.D. PRINCIPAL
Message
It is a moment of honour to announce that our college is hosting the First ever International Conference on Multifunctional Materials (ICMM 2019), in association with MRSI, Hyderabad Chapter from 19th- 21st December, 2019. The rudimentary objective of the conference is to provide a platform for academicians, researchers, engineers and industrialists to deliberate on the emerging trends in the field, sustainability and challenges encountered pertaining to the Multifunctionality of Materials. ICMM provides an excellent opportunity and space to the dynamic minds to learn and express their ideas. I firmly believe that this conference would be a trend setter in arousing the curiosity of researchers. I would like to express my admiration and appreciation to the organizing committee for their commendable effort. I wish the conference will pave a new path towards the best possible results that would meet the demands of the fast growing industry. I convey my warm greetings and felicitations to the Organizing Committee as well as the participants.
Sponsored by TEJA EDUCATIONAL SOCIETY, HYDERABAD Office : Sy. No. 33 & 34, Cheeryal (v), Keesara (M), Medchal District -501 301
ICMM-2019 7 Book of Abstracts
ICMM-2019 8 Book of Abstracts
ICMM-2019 9 Book of Abstracts
Message
I am delighted to know that Geethanjali College of Engineering and Technology is hosting its First
International Conference on Multifunctional Materials (ICMM 2019), in association with MRSI,
Hyderabad Chapter from 19th- 21st December, 2019.
The conference would provide a platform for researchers, scientists, faculty members to present
their innovative ideas and technological advances. In a nutshell, the conference promises to reach
greater heights of excellence.
I extend my best wishes to the Organizing Committee, delegates, participants and the team for the
success of the conference. I also congratulate the Management for initiating such pioneering step.
Dr. G. Ranjith Reddy
ICMM-2019 10 Book of Abstracts
COMMITTEES
International Advisory Chair
Dr. Evgeny Moos, Ryazan State University, Russia Dr. Andrei Sechnoi, Samara State Aerospace University, Russia Dr. Masahiro Sasaki, University of Tsukuba, Japan Dr. Ravindra Babu K, University of Kurdistan, Iraq Dr. Oleg Kondakov, University of Kuala Lumpur, Malaysia Dr. Sridhar K, MRL Penn state University, USA Dr. Palani Balayya, NUS, Singapore Ms. Kiranmayee Kilaru, Scientist, NASA-USA Dr. Miriyala Muralidhar, Shibaura Institute of Technology, Japan Dr. Kamesh Namuduri, University of North Texas, USA Dr. P. Venkateswar Rao, University of Kingston, Jamaica National Advisory Chair
Dr. Vikas Kumar, Director, DMRL, Hyderabad Dr . N.R. Munirathnam, Director General, C-MET Dr. N. Veeraiah, Acharya Nagarjuna University, Guntur Dr. Ajit R. Kulkarni, IIT-Mumbai Dr . J. Janardhana Reddy, DRDO-DMRL, Hyderabad Dr. James Raju, Central University, Hyderabad DR. RK Kotnala, NPL(Retd.), New Delhi Dr. B. Yegnanarayana, IIIT, Hyderabad Dr. S.N. Joshi, CSIR-CEERI, Pilani Dr. M.S. Ramachandra Rao, IIT-Chennai Dr. S.V. Manorama, CSIR-IICT, Hyderabad Dr. Tata Narsinga Rao, ARCI, Hyderabad Dr. P.K. Jain, ARCI, Hyderabad Dr. M.V.N. Ambika Prasad, Gulbarga University, Karnataka Dr. Chandra Prakash, SSPL(Retd.), New Delhi Dr. K. Venkateswar Rao, JNTUH, Hyderabad Dr. A.R. James, DRDO-DMRL, Hyderabad Dr. M.B. Suresh, ARCI, Hyderabad Dr. N.H. Ayachit, KLE Technological University, Hubballi Karnataka Dr. V.K. Deshpande, VNIT, Nagpur Dr. Chandra Prakash, SSPL, New Delhi Dr. N. Satyanararyana, Pondicherry Central University Dr. S. Bala Kumar, University of Madras, Chennai Dr. G. Prasad, Osmania University, Hyderabad Dr. K. Venu Gopal Reddy, NIT, Warangal Dr. D. Dinakar, NIT, Warangal Mr. Lolla Srinivasa Murthy, Bees Energy Consultancy, Hyderabad
ICMM-2019 11 Book of Abstracts
Steering Committee Dr. S. Udaya Kumar Dr. R.S. Raju Dr. G. Neeraja Rani Dr. J. Anjaiah Dr. M. Aruna Bharathi
Registration Committee Dr. V.S. Triveni Dr. B. Madhuri Dr. S.K. Nuslin Bibi Mr. K. Nagaraju Ms. V.Padmaja
Hospitality Committee Mr. G. Naveen Ram Mr. N. Nagireddy Mrs. G. Padma Mr. A. Shiva Kumar Mr. G. Sunil Mr. K. Laxmi Reddy Mr. Prasad KSSRCV Mr. S. Poornachander Rao
Book of Abstracts Committee Dr. M. Aruna Bharathi Dr. J. Shankar Dr. B. Madhuri Dr. P. Raju
Inauguration Committee Dr. B. Nagamani Dr. K.Shashikala Ms. P. Mercy Kavitha Ms. K. Swaroopa Ms. B. Vanaja Rani
Accommodation Committee Mr. P. Sreedhar Mr. S. Rajesham Mr. T. Abhilash
Transportation Committee Mr. K. Mahender Mr. Venkateshwar Rao Dr. M. Devaiah Dr. G. Mahesh Dr. K. Venkateshwarlu Mr. K. Jithendar Reddy
Cultural Committee Mrs. P. Mercy Kavitha Dr. K. Shashikala Ms. B. Vanaja Rani Ms. K. Swarupa Mr. T. Abilash
Sponsorship Committee Mr. K. Jithendar Reddy Mr. S. Rajesham Mr. P.Sreedhar
Oral Sessions Committee Dr. N.Subhadra Mr. Y. Phani Kishore Mr. K. Sudhakar Ms.V. Manjula Ms. S. Lalitha
Poster Sessions Committee Dr.Sk. Mohammed Ali Mr. P.Sudheer Rao Ms.T.V. Prashanthi
ICMM-2019 12 Book of Abstracts
Contents
Programme Schedule ..................................................................................................................................... 26
List of Plenary and Invited Talks ............................................................................................................................. 29
PT 1: Safer Multifunctional Sunscreen Active Ingredient via Native Atomic Defects Promotion – Concept to Commerce ...................................................................................................................................................................... 30
A. R. Kulkarni .................................................................................................................................................... 30 PT 2: Influence of noble metal ions on electrical and optical characteristics of non-conventional animonate glass ceramics- possible materials for NLO and piezo-optical devices..................................................................... 31
J. Ashok and N. Veeraiah* ................................................................................................................................ 31 PT 3: Microwave Resonators with Bulk and Thin Film Solids .......................................................................... 32
K.C. James Raju ................................................................................................................................................ 32 PT 4: Indigenous Nanomaterials-Based Technologies A “Make in India” Initiative ......................................... 33
Tata Narasinga Rao .......................................................................................................................................... 33 PT 5: Thermal efficient materials for electronic applications ......................................................................... 34
J. Janardhana Reddy, V.V. Bhanu Prasad ......................................................................................................... 34 PT 6: Development of oxide based functional materials for magnetic refrigeration....................................... 35
Sunkara V. Manorama ...................................................................................................................................... 35 PT 7: Synthesis of carbon nanomaterials composites and their interfacial effects on properties ................... 36
Dr. P.K. JAIN ...................................................................................................................................................... 36 PT 8: Perspective functional electronics on a base Synergistic processes ....................................................... 37
E. N. Moos ......................................................................................................................................................... 37 PT 9: Nano-carbon materials from the viewpoints of practical field electron emitters .................................. 38
Masahiro Sasaki1,2*
and Yoichi Yamada1 .......................................................................................................... 38
PT 10: Modeling and Synthesis of High-Temperature Superconductors: Problems and Perspectives ............. 39 Andrei I. Sechnoi ............................................................................................................................................... 39
IT 1: Mosquito Bite Inspired Microneedle Technology for Health care Applications ...................................... 40 Ganesh Kumar Mani ......................................................................................................................................... 40
IT 2: Studies of Conducting polymers and its applications .............................................................................. 41 Dr. M.V.N. Ambika prasad ................................................................................................................................ 41
IT 3: Metal Oxide Nanostrutures for Gas Sensing ........................................................................................... 43 K. Venkateswara Rao ........................................................................................................................................ 43
IT 4: Photonic Bandgap Crystals: Physics, Fabrication and Applications ......................................................... 44 B.V.R. Tata* ...................................................................................................................................................... 44
IT 5: Inorganic waste management: for better tomorrow .............................................................................. 45 D D Ramteke
1,2 .................................................................................................................................................. 45
List of Oral Presentations ..................................................................................................................................... 46
ICMM: 103 | Raman, FTIR and XPS Studies of Oxyfluoro -Phosphosilicate Glasses ........................................ 47 Vootukuru John Reddy
1,2, H. Umamaheshwari
3* R. Padmasuwarna
1, Venkata Krishnaiah Kummara
4*, Ravi Nirlakalla
4
.......................................................................................................................................................................... 47 ICMM: 108 | Fluorescent Trilayer OLED Device: an Electrical and Optical Characterization Based Simulation48
Arvind Sharma, Sagar Bhattarai, and T. D. Das
* ............................................................................................. 48 ICMM: 109 | CONCEPT OF DEVELOPING THE MULTI FUNCTIONALFIXTURES USING MAGNET RHEOLOGICAL FLUID. 49
GANDLA UDAYASREE ........................................................................................................................................ 49
ICMM-2019 13 Book of Abstracts
ICMM: 110 | Tuning Magnetic Anisotropy in Fe1-xNix Thin Films: Theeffects of composition and substrate temperature ...................................................................................................................................................................... 50
D. Taparia,1 J. Arout Chelvane
2, A. Srinivasan
1 and Perumal Alagarsamy
1 ...................................................... 50
ICMM: 113 | Comparative analysis of the stuctural properties of Cr-Zn andCr Co Nanoferrites ..................... 51 Dr. M. Lakshmi
* ................................................................................................................................................ 51
ICMM: 114 | Sr3Gd(PO4)3:Sm3+
nanophosphors for lighting applications ....................................................... 52 P. Shahab Khan
1,2, B.C. Jamalaiah
2*, B. Narasimha Rao
3, G.V. Lokeswara Reddy
4 ........................................... 52
ICMM: 117 | Spectroscopic Studies on Alkaline earth ions on Bisumuth based oxide Glasses ....................... 53 *Ch. Srinivasu
a, A. Edukondalu
b, S. Stalin
c and Syed Rahman
c ......................................................................... 53
ICMM: 119 | Observation of Dielectric Anomalies at Magnetic Phase Transitions in0.5(BiFeO3) – 0.5(Ba0.9Sr0.1TiO3) Multiferroic Ceramic ...................................................................................................................................... 54
T. Sreenivasu1, K.S.K.R. Chandra Sekhar
1, Anantharao Paila
1, B. Suryanarayana
1, K. Chandra Mouli
1, J. Praveen Kumar
2
and Patri Tirupathi2*
......................................................................................................................................... 54 ICMM: 120 | LiGd (1-x)(WO4)3:xEu
3+ nanophosphors for photonicapplications ................................................. 55
P. Raghupathi1,2,3
, B.C. Jamalaiah2*
, T. Subrahmanyam4, K. Venkata Rao
5 ...................................................... 55
ICMM: 122 | Impact of annealing temperature on resonance field, line-width andanisotropy in Ni0.65Zn0.35Fe2O4 56 M. Lakshminadh
1, M. Murugan
2*, GSVRK Choudary
3, M C Verma
4 ................................................................. 56
ICMM: 123 | Optimized Energy Consumption algorithm using IoT for Indoor Environment........................... 57 V.Usha Devi
1, Dr.S.V.S. Prasad
2 ........................................................................................................................ 57
ICMM: 124 | IOT in Agriculture Irregation and Monitoring ............................................................................ 58 M Vinod ............................................................................................................................................................ 58
ICMM: 125 | Automatic track fault and object detection inrailway infrastructure ......................................... 59 K. Gangalatha, Dr.B.Sridhar,S V S Prasad ......................................................................................................... 59
ICMM: 126 | Soldier Tracking And Health Monitoring System ....................................................................... 60 Badrinath Pulimamidi, D. Naresh Kumar, S.Venkata Surya Prasad .................................................................. 60
ICMM: 127 | Synthesis and Characterization of highly Fluorescent Donar/AcceptorSubstituted Imidazole Derivative for Solar Cell Application ............................................................................................................................... 61
Shashikant Walki,a Lohit Naik,
*b Ravindra M.K,
a Hemantkumar M.S,
*c YoganandaK.C,
d Soniya Naik,
f Malimath G.H,
*b
Prashanth S.A,e and Mahadevan. K.M.
*a .......................................................................................................... 61
ICMM: 128 | Design of high sensitive alcohol sensor with vehicle ignition disabling system ......................... 62 S. Harivardhagini .............................................................................................................................................. 62
ICMM 132 | Investigation on the effect of Ni codoping on the structural and optical properties of transparent Al:ZnO thinfilms ........................................................................................................................................................ 63
Srinatha N1, Raghu P
2, H M Mahesh
3, Suresh Kumar M R
1, Basavaraj Angadi
4,* ............................................. 63
ICMM: 133 | Effect of Sb3+ and Y3+ ions on optical and spectroscopic properties of holmium oxide doped calcio borate glasses ................................................................................................................................................ 64
M. Gopi Krishna1,2
, Ravi Kumar Guntu1, *
, N.V. Prasad2 .................................................................................... 64
ICMM: 134 | The characterization of Nd doped BiFeO3 multiferroicpolycrystalline materials ....................... 65 J. Ramesh
a, S. S. K. Reddy
b, M. Sreenath Reddy
c, Ch. Gopal Reddy
a, P. Yadagiri Reddy
a, K. Rama Reddy
a, V.
Raghavendra Reddyd ........................................................................................................................................ 65
ICMM: 137 | Photoluminescence Studies of Eu3+
and Tb3+
Activated Ba2SiO4Phosphor ................................ 66 K.Srikanth* and M.Srinivas ............................................................................................................................... 66
ICMM: 141 | Gamma Ray Induced, Structural and Electrical Properties of Nickel Ferrite Nanoparticles ........ 67 Pooja Khedekar*, Shubhada Thorat, Mangesh Khedkar, Swapnil Jadhav, K. M. Jadhav ................................. 67
ICMM: 143 | Structural and photoluminescence of Tb3+
Ba3La2(BO3)4 ............................................................ 68 M. Peddaiah
1, P. Ankoji
2, Dr. B. Hemalatha Rudramadevi
* .............................................................................. 68
ICMM: 147 | Effect of sintering temperature on the structural and electrical parameters of coblat ferrite (CoFe2O4) ...................................................................................................................................................................... 69
Sumalatha M1, Shravan kumar Reddy S
4, Sreenath Reddy M
2, a, Suresh Sripada
3, Venkat Reddy P
1, Gopal Reddy
Ch2,Yadagiri Reddy P
2 and Raghavendra Reddy V
5 .......................................................................................... 69
ICMM: 148 | Magnetocaloric response of LSMO manganite .......................................................................... 70 G. Lalitha
1, Lanka Satyanarayana
2 K. Jayanthi
2 and Sunkara. V. Manorama
2* ................................................ 70
ICMM: 149 | Design and Development of a Low-Cost Magnetic InductionSpectroscopy (MIS) Instrumentation 71 Tushar Kanti Bera
1*, Toushik Maiti
1, Suraj Prasad Barnwal
1 ............................................................................ 71
ICMM-2019 14 Book of Abstracts
ICMM: 151 | Understanding the Role of Structure on the Sensing Performance of Nanocrystalline WO3 Based Chemoresistive Sensors ................................................................................................................................. 72
Supraja Sankeshi, N.Snehita Chowdary, Pooja Bajaj and Manorama V Sunkara* ........................................... 72 ICMM: 153 | Title of the Paper A.C Conductivity of Cobalt Substituted in CopperFerrites by DSCM .............. 73
Ch.Venkateshwarlu1, Guguloth Vinod
2, U.Dhasharatha
2, P.Ramesh
2 and LaxmanNaik. J
* .............................. 73
ICMM 156 | Spectroscopic studies on Samarium doped Sodium-Zinc-Borate glasses .................................... 74 S. Hemalatha
1, Madhu. A
2, Madihally Nagaraja
* ........................................................................................... 74
ICMM: 157 | Electrical properties of Neodymium doped Bismuthmultifunctional materials ....................... 75 D.Ravinder
1*, G.Naveena
2 ................................................................................................................................. 75
ICMM: 159 | Effect of Copper Concentration on Ethanol Sensing Performance of Cu- stilbite Thick Film Sensor 76 Megha Mahabole
1*, Madhuri Lakhane
2, Kishori Naik
1, Pankaj Waghmare
3, VikasKutte
4, Rajendra Khairnar
1, Kashinath
Bogle1................................................................................................................................................................ 76
ICMM: 172 | Quenching effect of co-dopant Pr3+
on Red Emitting Yttrium Vanadate Phosphor Doped with Eu(III) ...................................................................................................................................................................... 77
G.Neerajarania, , J.Shankar
a, P.Raju
a, J.Anjaiah
a, B.Mamatha
a, N H Ayachit
b .................................................. 77
ICMM: 201 | Molecular Dynamics Study of Short Range Order and GlassForming Ability in FeXZr100-X Metallic Glasses ........................................................................................................................................................... 78
Anik Shrivastava1,2*
, Mahendra Khandpekar3, Satya Gowtam Dometti
1, Vivek Srivastava
1, Mahesh Mohape
1,Vinay
Deshmukh1 ........................................................................................................................................................ 78
ICMM: 207 | Characterization of Ba(NO3)2 and KNO3 and their Composite Systemsthrough SEM and DSC ... 79 1S. Shashi Devi,
2S. Narender Reddy,
3A. Sadananda Chary
3 ............................................................................. 79
ICMM: 209 | Synthesis, structure and optical properties of Indium filled CoSb3 nanomaterials .................... 80 Uday kumar M, Swetha R and Latha Kumari
* .................................................................................................. 80
ICMM: 211 | Structure and morphology (FTIR, Raman, SEM) studies of BaTiO3 ceramics for capacitor applications 81 R. Ravanamma
1,2, K. Muralidhara Reddy
2, Venkata Krishnaiah Kummara
2*, RaviNirlakalla
2 .......................... 81
ICMM: 214 | Radiation-Induced Synthesis of Nanoparticles in Aqueous Solution – A Mechanistic Approach 82 Dr. Avinash Singh
1*, Dr. Apurav Guleria, Dr. M.C. Rath ................................................................................... 82
ICMM: 215 | Surface Functionalized Porous Nanomaterials for Theranostics ................................................ 83 Chander Amgotha,*, Rompivalasa Santoshb,1, Murali Banavothb,2, Phan Chi Uyenc,1,Tang Gupingc,2 ...... 83
ICMM: 217 | Synthesis, Characterization & Studies on Polyaniline/Nanocomposites ThinFilms .................... 84 Dr.Jakeer Husain
1,Bushara anjum
2, Dr.Nagalli Raghu
3 ,Jaisheel Sagar
3* ......................................................... 84
ICMM: 218 | Analysis of p-Si/AlN/n-ZnOHeterojunction Diode using GaussianDistribution of Barrier Heights85 Chandra Prakash Gupta
1, Praveen K. Jain
2, Shashi Kant Sharma
3, Shilpi Birla
1, Sandeep Sancheti
4 ................ 85
ICMM: 220 | Study of Electrostatic Actuated MEMS Biaxial Scanning Micro-Mirrorwith Comb Structure ..... 86 Dhrubajyoti Sadhukhan, Gajendra Prasad Singh ............................................................................................ 86
ICMM: 221 | Performance of Li-ion Battery Anode: Investigating the Roleof Alternate Binders .................... 87 Supriya Pal
1,2 and Pratyay Basak
*1,2 ................................................................................................................. 87
ICMM: 227 | Synthesis, characterization and optoelectronic properties of alumina-tin oxide nanocomposite deposited on 1D carbon backbone................................................................................................................. 88
Deepti R. Kulkarni1*, Narasimha H. Ayachit2, Suresh D. Kulkarni3, Raviraj M.Kulkarni4 ................................ 88 ICMM: 228 | First-principles study of structural, elastic, electronic and optical properties of cubic perovskite LiMgF3 for novel applications .................................................................................................................................... 89
K. Ephraim Babu1*
, K. Neeraja1, D. Deenabandhu
2, V. Venkata Kumar
3,K. Bueala Kumari
3,Paulos Taddesse
4,G.
Tewodros Aregai5, B.Vikram Babu
6,K. Samatha
6 and V. Veeraiah
6 .................................................................. 89
ICMM: 231 | Factor affecting the performance of perovskite solar cell for distinct MAPI layer thickness ...... 90 Sagar Bhattarai
1, Arvind Sharma
1, Dr.T.D.Das
1* .............................................................................................. 90
ICMM: 243 | Zinc Oxide Nanostuctures prepared by modified ultrasonication-cumbustion method for optoelectronic device application .......................................................................................................................................... 91
VishwalingaPrasad B1, Daruka Prasad B
2*, Ningappa C
3 ................................................................................. 91
ICMM: 247 | FTIR, Raman and XRD analysis of graphene oxide filmsprepared by modified Hummers method92 G. Surekha
1, 2, Venkata Krishnaiah Kummara
2, Ravi Nirlakalla
2, R. Padma Suvarna
1 ...................................... 92
ICMM: 248 | 3d Printed Pcl/Ha/Go Biodegradable Polymer NanoComposites for Bone Tissue Engineering .. 93 T S C Nataraj
1 M. Meikandan
2 .......................................................................................................................... 93
ICMM: 253 | Battery Energy Storage Technologies for SustainableElectric Vehicles and Grid Applications ... 94
ICMM-2019 15 Book of Abstracts
G. Sree Lakshmi 1
, Rubanenko Olena1, G. Divya
2, Rubanenko Oleksandr
3, ....................................................... 94
ICMM: 254 | Dielectric Properties Analysis of Paper Capacitor ...................................................................... 95 G. Sree Lakshmi
1, Rubanenko Oleksandr
2, Rubanenko Olena
1,........................................................................ 95
ICMM: 257 | Structural, microstructural and optical property studies on sol-gelsynthesized Cr/Fe-doped CuO nanoparticles ................................................................................................................................................. 96
J. Praveen Kumar1, K.S.K.R. Chandra Sekhar2, Anantharao Paila2 and Tirupathi Patri1* .............................. 96 ICMM: 261 | Optimal Use of Power Generated by Renewable Energy Sources UsingLinear Programming Method 97
Dr. A. Jaya Laxmi*, Ch. Anjamma, R. Pradeep, A. Laxman rao ......................................................................... 97 ICMM: 264 | Influence of active layer thickness on the cut-off frequency ofa-IGZO thin film transistor ........ 98
Roshna B. Raj1*
, Shiny Nair2, Ashutosh Tripathi
3, T. Mukundan
2, Shahana T. K.
1 ............................................ 98
ICMM: 265 | Influence of Thickness on the Peformance of the Pulsed Laser Deposited CZTS Counter Electrode Based DSSC cells ....................................................................................................................................................... 99
A.C. Kasi Reddy1, K. Susmitha
1, M. Gurulakshmi
1, Thota Narayana, M. Raghavender
1, Y.P. Venkata Subbaiah
1, * 99
ICMM: 266 | Electrical Transport Study of Fe1-xCrxSi .................................................................................... 100 Sankararao Yadam
1, V. Ganesan
2 ................................................................................................................ 100
ICMM: 267 | Relaxation dynamics of Dimethylacetamide/Glycerol binary mixturesinvestigated by dielectric spectroscopy ................................................................................................................................................ 101
T. Vamshi Prasad a, V Manjula
b, K.C. James Raju
c, Y. Aparna
a*, T. Vishwam
b ............................................. 101
ICMM: 269 | Diesel generator and SOFC Fuel Cell Based Hybrid Energy System .......................................... 102 Manjul Khare
1, Manju Khare
2 ........................................................................................................................ 102
ICMM: 275 | CFD Investigation of Double Pipe Heatexchanger Using Silica Nano Fluid ............................... 103 G. NIVEDINI
1, K. PRASAD
2, Ch. SANDEEP
3, K. VENKATESWARA RAO
4* .......................................................... 103
ICMM: 277 | Dielectric breakdown studies of ZnO-B2O3 glass ceramics mixed with Ta2O5, Nb2O5 and ZrO2 . 104 A. Siva Sesha Reddy* and N. Veeraiah ........................................................................................................... 104
ICMM: 282 | Computational Studies of Distinct Anilines for ElectroopticalActivity ..................................... 105 Marla Prasanti
1, Anjali Jha
2,Ch. Ravishankar Kumar
1* ................................................................................... 105
ICMM: 285 | Sol-gel synthesis and electrochemical properties of wolframite FeNbO4 ................................ 106 D. Saritha* ...................................................................................................................................................... 106
ICMM: 291 | A Facile synthesis of α - MoO3 using Eggshell Membrane biotemplatefor Gas Sensing ........... 107 B. Geeta Rani
1, M. Sai Bhargava Reddy, K. Venkatesawara Rao
1* ................................................................. 107
ICMM: 292 | Structural,Mechanical and Elecrtical properties of NiO-GDC20 composite anodes for intermediate temperature Solid oxideFuel cells ................................................................................................................ 108
M.Narsimha Reddy1*
, P. Vijaya Bhaskar Rao2 , S.S .Bhoga
3 , Mahesh Bansod
4 V.Sreehari babu
5 .............. 108
ICMM: 302| Mapping Solution Loss-Tangent Deposition Rate of MnZn-Ferrite via Microwave-Assisted Solvothermal Processing .................................................................................................................................................... 109
Charu Singh1, R D Raland
2, Ranajit Sai
2, S A Shivashankar
2, Piyush Jaiswal
1* ................................................ 109
ICMM: 402 | Cryogenic Heat Treatment Process For D2 Steel & M2 Steel ................................................... 110 N. Prabhu Kishore .......................................................................................................................................... 110
ICMM: 403 | Electron Paramagnetic Resonance Studies Of Bi2O3-Li2O-As2O3- B2O3 Glasses Doped With Vanadium 111 Kalyani B
1,2, Navaneetha Pujari
1,2 , Potharaju Krishna
1,, J. Chinna Babu
3, .................................................... 111
Avula Edukondalu1,2*
, C P. Vardhania .............................................................................................................. 111
ICMM: 404 | Thermal and Mechanical properties of Glass ionomer cement ............................................... 112 G. Patrick
1*, Mandava Sridhar
2 and J. Kishore Babu
3 .................................................................................... 112
ICMM: 409 | Convolutional Neural Networks For Dermis Canker Detection ................................................ 113 CH. Kranthi Rekha, Dr. B.L. Prakash ............................................................................................................... 113
ICMM: 410 | Additive Manufacturing for VADs and TAHs - a Review .......................................................... 114 Anil Kumar Puppala
1, Venkateshwarlu Sonnati
2* ........................................................................................... 114
ICMM: 411 | Onset of thermovibrational convection in a Nanofluid saturated porousmedium .................. 115 R.K. Brinda* .................................................................................................................................................... 115
ICMM: 413 | Graphene reinforces Asphalt- Doubles durability of Road ...................................................... 116 B.Jyothirmai
1*, M.Haritha Kiranmai
2, K.Vagdevi
3 ........................................................................................... 116
ICMM: 421 | Effect of Li2O on electron paramagnetic resonance and opticalabsorption studies of Cu2+ ions in arsenate boro-tellurite glasses .................................................................................................................... 117
Navaneetha Pujari1,2*
, Kalyani B1,2
, Potharaju Krishna 1
, J. Chinna Babu3, C P. Vardhani
1 ............................ 117
ICMM-2019 16 Book of Abstracts
ICMM: 425 | XRD Investigation on Heat Treatment of High Chromium White Cast Irons ............................ 118 Mbulelo Nqwase, Xiaowei Pan* ..................................................................................................................... 118
ICMM: 428 | An Experimental Study on the Ballistic Behavior of a High Strength Low Alloy Steel against High Hardness Steel Projectiles ............................................................................................................................ 119
Pradipta Kumar Jena1*
, K Siva Kumar 1 ........................................................................................................... 119
ICMM: 502 | Application and Evaluation of Properties of Ethylene AcrylicAcid Co-Polymer on Cotton Fabrics using Exhaust and Pad-Dry-Cure Finishing Methods............................................................................................. 120
Dr. Gurumurthy.B. R1*
..................................................................................................................................... 120 ICMM: 508 | Structural and optical properties of BaTiO3 Nano particles..................................................... 121
E. Janardhan1, M. Maheshwar Reddy
1, G. Raj Kumar
1 and M. Jaipal Reddy*
2............................................... 121
ICMM: 512 | Deflection and Buckling Analysis of Laminated Hybrid Composite Plates ............................... 122 D. Dhanunjaya Raju
1*, Shashank
2 .................................................................................................................. 122
ICMM: 513 | Static and Dynamic Analysis of Quasi Isotropic CompositePlates Excited by Piezoelectric Actuators with Variable ThicknessRatios ............................................................................................................................. 123
D. Dhanunjaya Raju1*
, V.V. Subba Rao2 .......................................................................................................... 123
ICMM: 516 | A Review on Formability Tests for Sheet Metal Forming Operations ...................................... 124 A.C. Sekhara Reddy
1*, S. Rajesham
2, P. Ravinder Reddy
3 .............................................................................. 124
ICMM: 523 | Polypyrrole/NiO hybrid nanocomposites: Structural, morphological, optical and electrical studies for optoelectronic device applications .............................................................................................................. 125
Hajeebaba K Inamdar1,2
, Sasikala. M3, M.V.N. Ambika Prasad
1* ................................................................... 125
ICMM: 524 | Green fabrication of Co3O4/Polypyrrole nanocomposites: Structural, Morphological and DC conductivity studies ......................................................................................................................................................... 126
Hajeebaba K Inamdar1,2
, Sasikala. M3, M.V.N. Ambika Prasad
1* ................................................................... 126
ICMM: 526 | Green Synthesis of Co3O4/Polyaniline nanocomposites: Structural, Morphological and conductivity studies ......................................................................................................................................................... 127
J. Venkatreddy1,4
, Narsappa6, Pallati Naresh
3, B Lavanya
5, M.V.N. Ambika Prasad
7, kamatam Hariprasad
2,
N.Sundraganeshan4 , Hajeebaba K Inamdar
1,* ............................................................................................... 127
ICMM: 527 | Comparative studies of self-compacting geopolymer concrete andconventional concrete subjected to corrosion and chloride ingression ................................................................................................................ 128
Krishneswar Ramineni1*, Manikanteswar Ramineni2, Mahesh Reddy Y3, Dr. BNarendra Kumar4 ............. 128 ICMM: 532| Thermal degradation study for manufacturability of Polyetheretherketone/Hydroxyapatite bone implant composite .................................................................................................................................................... 129
Sivakoti Shyam Kumar1*, Rahul Chhibber
2, S. Saptagiri
3 ................................................................................ 129
ICMM: 534 | Studies on mass attenuation coefficient, effective atomic number andelectron density of some low Z materials in the energy range 0.122 to 1.330 MeV ...................................................................................... 130
Vishwadip V. Khosepatil, Sagar S. Ghuge, Ruchita P. Solanke, Sanjay R. Dipke, Pravina P. Pawar ................ 130 ICMM: 536 | Influence of Elevated Temperature on Flextural Strength of Polysialate Composite ............... 131
S. Sapthagiri1*
, Sivakoti Shyam Kumar2 .......................................................................................................... 131
ICMM: 537 | Thermal and Elastic Properties of Mixed Alkali Tungsten Tellurite Glasses ............................. 132 Avula Edukondalu
1,2*, Salavadi Stalin
1, Ch. Srinivasu
3, Syed Rahman
1, K. Siva Kumar
1 ................................. 132
ICMM: 543 | Electrical Properties of the Ni/ polyvinyl alcohol/n-Si heterojunction with polymer interlayer133 V. Manjunath
1*, G. Manjunatha
2, and P. Ananda
2 ......................................................................................... 133
ICMM: 546 | Investigation on the microstructure and mechanical properties of W-Cu composites prepared by sintering and infiltration .............................................................................................................................. 134
U. Ravi Kiran1, G. Prabhu
2, T.K. Nandy
3 .......................................................................................................... 134
ICMM: 548 | Sliding wear characteristics of epoxy-glass composites reinforcedwith micro B4C .................. 135 Z. Shanti Kiran
*, V. Suresh Babu, V. Sri Ram, M. Kameswara Reddy .............................................................. 135
ICMM: 549 | STUDY OF IONIC CONDUCTION MECHANISM IN PEO+PVdF BASED POLYMER BLEND ELECTROLYTES COMPLEXED WITH NaClO4 ........................................................................................................................... 136
Kiran Kumar Ganta1*
, Venkata Ramana Jeedi1, K. Vijaya Kumar
2 and E. Laxmi Narsaiah
1 ............................ 136
ICMM: 602 | Investigation of Various Phases of Fe-Co-Si layerSynthesized in Si by Fe and Co Dual Ion Implantation .................................................................................................................................................................... 137
Satyabrata Singh 1, Wickramaarachchige J. Lakshantha
1, Bibhudutta Rout
1* .............................................. 137
ICMM: 604 | Experimental Study of Parameters of P-20 Steel on CNC milling machine ............................... 138
ICMM-2019 17 Book of Abstracts
M Vishnu Vardhan1*
, Chinmay P Mohanty2, B Dhanraj
1 ................................................................................. 138
ICMM: 606 | Trace Elements of Azadiracta indica from mining area byEDXRF technique ............................ 139 S. Jyothsna
1*, G. Manjula
1 and A.S. Nageswara Rao
1 ..................................................................................... 139
ICMM: 607 | Ag/GaN hybrid nanostructures for opto-electronicapplications .............................................. 140 Kishor Upadhyaya
1*, Narasimha Ayachit
1, Shivaprasad S. M.
2 ...................................................................... 140
ICMM: 609 | Optical properties of Calcium Sodium Phosphate Glasses doped with Strontium ................... 141 Chethan
1, Sudhakar Reddy. M
2, Abhiram. J
3, Asha Rajiv
4* ............................................................................. 141
ICMM: 611 | Effect of ZnO nanoparticles on structure and magneticproperties of Li2O-B2O3: TiO2 glasses .. 142 L. Srinivasa Rao
1*, Ch. Sai Phani Kumar
2, K. Aruna Prabha
2, C.D. Naidu
1 ....................................................... 142
ICMM: 613 | Elastic properties of sodium diboro-vanadate glasses ............................................................. 143 Harikamalasree
1,2, G. Chandrashekaraiah
3, R Viswanatha
4, C Narayana Reddy
5 .......................................... 143
ICMM: 614 | Non-linear optical properties of Bi2O3-TeO2-B2O3-GeO2 glasses ............................................... 144 Salavadi Stalin
1*, Avula Edukondalu
2, M.A. Samee
3, Sair Md. Taqiullah
4, SyedRahman
1 ............................... 144
ICMM: 619 | Growth of 2-D MoS2 thin film by facile electrochemical deposition ........................................ 145 Chittatosh Pal
1, Subrata Majumder
1* ............................................................................................................. 145
ICMM: 621 | Temperature dependence of density and thermal expansion of oxide of Dysprosium in the temperature range 300 to 1000 K ..................................................................................................................................... 146
M. RangaRao1 , N. Gopi Krishna
2, S Chandra lingam
3 .................................................................................... 146
ICMM: 622 | Cyclic oxidation behaviour of Cr3C2-NiCr coatings on three different superalloys .................... 147 *
Subhash Kamal1, Srinivas Reddy
1, S.R. Pedapati
2, A.M. Abdul-Rani
2 ........................................................... 147
ICMM: 625 | Unexplored Intermetallic Nanopartilcle Catalyst towards Low-Temperature Energy Extraction from Ethanol ........................................................................................................................................................ 148
Gubbala V. Ramesh1 ....................................................................................................................................... 148
ICMM: 626 | Paper based Photo-detector using Nano-crystalline LeadSulfide Thin Film .......................... 149 Pooja M. Khanzode
1, Devidas I. Halge
1, Vijaykiran N. Narwade
1, Kiran D. More
1, Sumayya Begum
1, Sabah Taha
1,
Suhas M. Jejurikar2, Jagdish W. Dadge
3, Abhimanyu S. Rana
4 and Kashinath A. Bogle
1,* ............................. 149
ICMM: 629 | Review of Dissimilar FSW Joints ............................................................................................ 150 K.Viswanath Allamraju
*, Thota Sreehari
, Shaik Anees ................................................................................... 150
ICMM: 632 | Comparative Analysis of Sodium Hexa-titanate (Na2Ti6O13) & Sodium-Potassium Hexa-titanate (Na1.5K0.5Ti6O13) ............................................................................................................................................ 151
N Alam1$
, T Khatoon2, V S Chandel
3*$, A Azam
3, Rashmi
4 ............................................................................... 151
ICMM: 634 | Development and validation of HPLC method for the Quantitative determination of (E) -3-(3-(dimethylamino) propyl)-3- (3-(4-hydroxy-3 methoxyphenyl) acryloyl) dihydrofuran-2(3H)-one tartarate as a potential spermicide ................................................................................................................................................... 152
Rishi Ranjan Pandey1, Devendra P. Mishra
2* .................................................................................................. 152
ICMM: 701 | Design and Development of Object Detection and Separation Mechanism using Raspberry Pi153 Vinaykumar Patancheru, G. Shravan Kumar, S. Venkata Surya Prasad ........................................................ 153
ICMM: 704 | Data Logger Using Pic Micro-Controller ................................................................................... 154 T. Pranetha, V. Arun
, S. Venkata Surya Prasad .............................................................................................. 154
ICMM: 705 | A Consecutive Parameter Extraction Technique for IGBT compact model ............................... 155 N.V. Bharadwaj
1*, Dr. P. Chandrasekhar
2,Dr. M. Sivakumar .......................................................................... 155
ICMM: 706 | To Design And Develop The Realtime Watermarking Schemes Which Could Be Used In Iptv Applications .................................................................................................................................................................... 156
A. Madhuri, N. Vasudeva Reddy, S. Venkata Suryaprasad ........................................................................ 156 ICMM: 707 | DESIGN AND DEVELOPMENT OF PORTABLESPIRO METER ....................................................... 157
Kadari Anusha, V. Arun, S V S Prasad. ............................................................................................................ 157 ICMM: 708 | IOT and GPS Based Women Safety System Using ARM7 Controller ......................................... 158
V. SHARANYA1
, S. VENKATA SURYA PRASAD2
............................................................................................... 158 ICMM: 709 | Emergency System based Smart Grid ...................................................................................... 159
S. Poorna Chandra Rao1,2
, Dr.M.Sushama3 ..................................................................................................... 159
ICMM: 711 | Advancaed Traffic Signal Control Algorithms .......................................................................... 160 Nagula Kalyani, N.Vasudheva Reddy, SVS Prasad .......................................................................................... 160
ICMM: 712 | EMOTION RECOGNITION FROM FACIAL IMAGES ..................................................................... 161 Chintamadaka Ashwini, Anjaneyulu, SVS Prasad ........................................................................................... 161
ICMM-2019 18 Book of Abstracts
ICMM: 715 | Impact of Deregulated power system market in congestionmanagement of a transmission line162 Thakur Pooja Rani
1,2, Dr. P.V. Balasubrahmanyam
3, Dr. Manjula Mane
4 .................................................... 162
ICMM: 718 | Casson Fluid Performance on Convective Flow in presence of MagneticField, Chemical Reaction and Porous Medium ........................................................................................................................................... 163
G. Aruna, M. V. Phani Kumari, R. Srinivasa Raju* ........................................................................................... 163
ICMM: 719 | Carbon footprint estimation for sustainable development ..................................................... 164 Dr. J.S. Sudarsan
1, Jyesta.W
2, Jaisal.D
2, Dr. V. Sri hari
3, Pola Vamshi
4* .......................................................... 164
ICMM: 720 | Numerical Study of unsteady Jeffrey Fluid Flow Past AVertically Inclined Plate in presence of MHD, Thermal Radiation ....................................................................................................................................... 165
M. V. Phani Kumari, G. Aruna, R. Srinivasa Raju* ........................................................................................... 165
ICMM: 722 | Wiresless Communication Tehnologies For Smart Grid (WAMS) Development ....................... 166 P. ARAVIND KUMAR, V. ARUN
, S. VENKATA SURYA PRASAD ......................................................................... 166
ICMM: 723 | Heuristic Techniques for Planning and Operation of Smart Microgrid: A Review .................... 167 Preeti
1, K. S. R. Murthy
2, Harish Pulluri
3* ........................................................................................................ 167
ICMM: 724 | Solution of Optimal Power Flow Problem Using CarTracking Optimization Algorithm ............ 168 K. Mahender
1, M. Vyshnavi
2, B. Sai Priya
3, Harish Pulluri
4* ............................................................................ 168
ICMM: 726 | Design of a New Multilevel Inverter for FACTS Application ..................................................... 169 Padmaja Voleti
1,2, Dr. Y Siva Reddy
3 .............................................................................................................. 169
ICMM: 729 | Design of a New Multilevel Inverter for Solar Energy Conversion Systems ............................. 170 Padmaja Voleti
1,2, Dr. Y Siva Reddy
3 .............................................................................................................. 170
ICMM: 732 | Formal Verification of Fault Location, Isolation and Service Restoration in Distribution Automation 171 S. Poorna Chandra Rao
1,2, Dr. M. Sushama
3 , Ch. Kavitha
4 ............................................................................. 171
ICMM: 734 | The Study of Surface Integrity on Friction Stir Welded Brass Plates ........................................ 172 P.V. Chandra Sekhara Rao
1*, B. Ramesh Chandra
2, Aluri Manoj
3 ................................................................... 172
ICMM: 735 | LiTaO3 Directional Coupler Switching Operation with Enhanced Extinction Ratio and Low Insertion Loss .................................................................................................................................................................... 173
Dr. D. Neelima Patnaik* and Dr. M.Chandra Shekhar Reddy ......................................................................... 173 ICMM: 741 | Monte Carlo study of a martensitic model: Coarsening exponents ......................................... 174
N. Shankaraiah1*
, Sanjay Puri2, and Subodh R. Shenoy
1 ................................................................................. 174
ICMM: 742 | Investigation on Natural Convective Flow of EthyleneGlycol - Fe3O4 Nanofluid in A Porous Cavity with Thermal Radiation ....................................................................................................................................... 175
Ramesh Alluguvelli1*
, Chandra Shekar Balla2, Lavanya Bandari
3, Kishan Naikoti
4 ......................................... 175
ICMM: 744 | An Arduino Based Multifrequency Voltage Controlled Oscillator (Mf-VCO) for Electrical Impedance Spectroscopy (EIS) ....................................................................................................................................... 176
Tushar Kanti Bera1*
, Suraj Prasad Barnwal1, Toushik Maiti
1 .......................................................................... 176
ICMM: 745 | A Low-Cost Electroencephalography (EEG) Instrumentation for Epileptic Seizure Detection .. 177 Tushar Kanti Bera
1* and Sunil Choudhary
1,2 ................................................................................................... 177
ICMM: 746 | Electrical Impedance Spectroscopy (EIS) of Biological Cells: A Matlab-based Simulation Study178 Tushar Kanti Bera
1*and Sampa Bera
2 ............................................................................................................. 178
ICMM: 748 | Finite Element Analysis of Heat Generation/Absorption of Viscousdissipation Effects on MHD Casson Fluid Flow Over Exponentially Acceleratedtemperature with Ramped Surface Concentration .................... 179
Sweta Matta1, Bala Siddulu Malga
2, Lakshmi Appidi
1, P.Pramod Kumar
3 ..................................................... 179
ICMM: 749 | Design and Implementation of Power Conditioning for DistributionNetworks V2G to Electric Vehicle and DC charging system ...................................................................................................................................... 180
Dr. K. Sree Latha1, Dr. M. Lakshmi Swarupa
2 .................................................................................................. 180
ICMM: 750 |Influence of Slip and Heat and Mass Transfer Effects on PeristalticMotion of Power-Law Fluid in a Proned Tube ............................................................................................................................................................ 181
K. Maruthi Prasad1, N. Subadra
2* ................................................................................................................... 181
ICMM: 753 | Soret Effect on Radiation-Convection Flow in Porous Medium with Chemical Reaction ......... 182 Dr. Sk. Nuslin Bibi
*, G. Padma ......................................................................................................................... 182
ICMM: 754 | Heat and Mass Transfer on Unsteady MHD Flow Through Aporous Medium in A Rotating Channel 183 G. Padma
*, Dr. Sk. Nuslin Bibi ......................................................................................................................... 183
ICMM: 758 | Mathematical Approach to Study Heat and Mass Transfer Effects in Transport Phenomena of a non-Newtonian Fluid .......................................................................................................................................... 184
ICMM-2019 19 Book of Abstracts
N. Subadra1*, M. A. Srinivas
2, Sunil Dutt Purohit
3 .......................................................................................... 184
ICMM: 2103 | Facile Hydrothermal Synthesis and Enhanced electrochemical Performance of ZnCo2S4 Nanoparticles .................................................................................................................................................................... 185
M. Dakshanaa, S. Meyvel
a*, M. Silambarasan
b, M. Malarvizhi
a ...................................................................... 185
ICMM: 2108 | Assembly and Performance Study of tubular gelled valve-reglated lead acid batteries with hybrid combination of AGM-GEL-PE ....................................................................................................................... 186
S. Sasi Rekha1,2
, K. Venkateswara Rao1*
, V. Naresh2, S.K. Martha
2 ................................................................ 186
ICMM: 2113 | Synthesis, Structural and Electrochemical Properties of Ce and Ni Substituted LiMn2O4 Cathode Material for Li-ion Batteries ......................................................................................................................... 187
S.J. Margarette1,
*N. Murali
2, V. Veeraiah
1, M. Indira Devi
1 ........................................................................... 187
ICMM: 2116 | Ag Nanoparticles Decorated Porous TiO2-ZrO2 Composite as Aspatially Homogenous Surface Enhanced Raman Scattering Substrate ......................................................................................................................... 188
Hareesh. S.1, Sanu Mathew Simon
2, Prakashan V.P.
2, Twinkle Anna Jose
1, Saritha A.C.
2, Cyriac Joseph
2, Biju P.R.
2,
Unnikrishnan. N.V.2*
....................................................................................................................................... 188 ICMM: 2121 | Investigation on Nano CaTiO3 Filler Infused Plasticized PVdF-co-HFPand PEMA Blended PVdF-co-HFP / Lithium (bisperfluoroethan- esulphonyl) imide Composite Electrolyte for Lithium-ion Batteries ................. 189
N. Sangeetha1, P. Vickraman
* ......................................................................................................................... 189
ICMM: 2123 | Influence of Thermal Treatment on the Physical Properties ofBismuth Ferrite Nanoceramics for Promising Multifarious Device Applications................................................................................................. 190
Waseem Ahmad Wani1, Kannan Ramaswamy
1, Souvik Kundu
2, B. Harihara Venkataraman
1* ..................... 190
ICMM: 2125 | Silver Nanoparticles on Modified Flexible Substrates for Electronics Applications ................ 191 Gurumurthy S. C.
1*, Anju Jolly
1, Koduri Ramam
2, Shridhar Mundinamani
3, B. SNagaraja
4 ............................ 191
ICMM: 2127 | A Theoretical Study of Non Linear Optical Responses and Photo-absorption in Carbon Doped Boron Cluster ......................................................................................................................................................... 192
Shakti S Ray1*
, Rakesh K Sahoo, Sridhar Sahu1 ............................................................................................... 192
ICMM: 2129 | Ionic Liquid Modified Photoelectrode for Enhanced Flexible Dye Sensitizedsolar Cell Performance with Semi-Transparent Electrodeposited Molybdenumdisulphide Counter Electrode ......................................... 193
M. Gurulakshmi, A. Meenakshamma, M. Raghavender *
............................................................................... 193 ICMM: 2130 | Improving the Electrochemical Performance of Zn Doped LiNi0.8Co0.1Mn0.1O2 Cathode Material for Li-Ion Batteries ...................................................................................................................................................... 194
V. Kondala Rao1*
, N. Murali2, V. Veeraiah
1, K. Samatha
1 ............................................................................... 194
ICMM: 2140 | Room Temperature Magnetoelectric Properties of Fe75Ga25- (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 Laminates 195 N. Pavan Kumar
a,b, Himalay Basumatary
a, Atal Bihari Swain
c, V. Subramanian
c, A. Srinivas
*a ...................... 195
ICMM: 2144 | Molecular and Dielectric Relaxation Studies on 2-Chloroaniline with 2-Methoxyethanol binary Solutions Using Time Domain Reflectometry ............................................................................................... 196
Bhupesh G. Nemmaniwar ............................................................................................................................... 196 ICMM: 2156 | Semimetallic Nature of MTe (M = Ca, Sr, Ba) Under High Pressure........................................ 197
Lavanya Kunduru1*
, Suresh Sripada2, S. C. Rakesh Roshan
3, N. Yedukondalu
3, M. Sainath
3 .......................... 197
List of Poster Presentations ................................................................................................................................ 198
ICMM:101 | Complex permittivity and Permeability Properties Analysis of NiCuZn Ferrite-Polymer Nanocomposites for EMI Suppressor Applications .................................................................................................................. 199
P. Raju*, Ch. Kalyani, J. Shankar, J. Anjaiah, G. NeerajaRani ......................................................................... 199 ICMM:111 | Optical Properties of Samarium doped Zinc Lithium Borate Glasses ........................................ 200
Kavita Hanumar1, B G Hegde
18 and N H Ayachit
2 ........................................................................................... 200
ICMM:112 | Exploration of Lead-free Magneto-electric 0.85(Na0.49K0.9Bi0.5TiO3) – 0.15(CoFe2O4) Particulate Composite for Sensor Application ................................................................................................................................. 201
Munendrapal1, Adiraj Srinivas
2* Saket Asthana
1* ........................................................................................... 201
ICMM:115 | Magnetic and Dielectric Studies of Ba0.5Sr0.5Fe12O19 Prepared by Solid State Reaction Method 202 V. Argish
1, M.G. Shalini
1, Subasa. C. Sahoo
1,* ................................................................................................. 202
ICMM-2019 20 Book of Abstracts
ICMM:116 | Thermo Magneto Electric Effects in Ferromagnetic Mild Steel, Cobalt and Nickel as Core Materials in Vertical set up: Comparative Study .............................................................................................................. 203
Mandava Sridhar1*
, G. Patrick2 and J. Kishore Babu
3 .................................................................................... 203
ICMM:118 | Vegetable Assisted the Green Synthesis of Gold Nanostructures and its Nonlinear Optical Properties 204 Ramya Emusani
1*, L. Jyothi
2, D. Narayana Rao
2 ............................................................................................. 204
ICMM:121 | Effect of Doping on Defect Modes of 2D Photonic Band Gap Crystals ...................................... 205 Saranya Narayanan, B.V.R Tata
* .................................................................................................................... 205
ICMM:130 | Non-linear Optical Studies of Cadmium Magnesium Oxalate Crystals Grown by Gel Method .. 206 Mangala M Sanjeevannanavar
1, Jagannatha N
1*, and Rohith P.S.
1 .............................................................. 206
ICMM:131 | Influence of Alkaline Earths on EPR spectra of Lithium Borate Glasses Doped with Fe (III) ions.207 Ashok Bhogi
1 and P. Kistaiah
2 ......................................................................................................................... 207
ICMM:136 | Luminescence Characteristics of Dy3+
Doped Borofluorophosphate Glasses for White Emission Applications ................................................................................................................................................. 208
Jismon Sebastian1, Subash Gopi
2, Sreeja E
2, Adon Jose
2, Krishnapriya T
2, P.R. Biju
2* ..................................... 208
ICMM:144 | Structural, Thermal and Optical Properties of 50Bi2O3-15MO-20B2O3-15Li2O (where M= Zn, Cd, Ba and Pb) Glasses................................................................................................................................................... 209
aJ. Bhemarajam,
bG. Upender,
aM. Prasad
* ..................................................................................................... 209
ICMM:146 | Synthesis, Structural and Magnetic Properties of Multifunctional Spinel Ferrite Nanoparticles for Data Storage Applications .................................................................................................................................... 210
Shubhada Thorat*, Pooja Khedekar, Deepali Andhare, Supriya Patade, K. M. Jadhav .................................. 210 ICMM:154 | Structural and Optical Properties of ZnS/Graphene Nanocomposite Films Formed by Homemade Spray Pyrolysis Unit ............................................................................................................................................... 211
V.H.Choudapur1*
, S.B.Kapatkar1, N.H.Ayachit
2 ............................................................................................... 211
ICMM:161 | Photoluminescence in KMgAlF6 ............................................................................................... 212 Vartika S. Singh
1*, P. D. Belsare
2, S. V. Moharil
1 .......................................................................................... 212
ICMM:162 | Rare Earth Based Insulating Nano Crystals for Plasma Display Panels ...................................... 213 P. Chandar Rao
1, Vishnu V. Jaiswal
2, G. Ravinder
1, C. J. Sreelatha
1, D. Haranath
2, ........................................ 213
ICMM:165 | Low Temperature Synthesis, Structural, Cation Distribution and Magnetic Studies of Cobalt Ferrite Nanoparticles .............................................................................................................................................. 214
Farha Naaz, Aqsa Samreen, Shaikh Saima Anam, Shaikh Zeba Anjum, K.M. Jadhav ..................................... 214 ICMM:167 | Magnetic and Dielectric properties of Sm and Bi Substituted Gadolinium Iron Garnet ............ 215
Aakansha, S.Ravi* ........................................................................................................................................... 215
ICMM:168 | A Comprehensive Device Modelling Of Solid-State Dye Sensitized Solar Cell by MATLAB ........ 216 Omhari Dubey
1,a, Sarvesh K Gupta
2,b and Abhishek K Gupta
2,c ....................................................................... 216
ICMM:169 | Solid State Route Preparation, Characterization and Electrical Properties of NiCuZnFe2O4/Paraformaldehyde Nanocomposites ...................................................................................... 217
P. Raju*, S. Rajesham, J. Shankar, J. Anjaiah, G. Neeraja Rani ....................................................................... 217 ICMM:170 | Effect of Cr
3+ Substitution on Electromagnetic Properties of Nanocrystalline MgCuMn Ferrites
Synthesized by Sol-Gel Method. .................................................................................................................. 218 T. Ramesh
1*, D. Bhavya
2, K. Ruchitha Devi
2 and S. Senthil Kumar
3 ................................................................. 218
ICMM:171 | Theoretical Study on Structural and Optical Properties of PEO & NH4SCN based Solid Polymer Electrolyte .................................................................................................................................................................... 219
Vinay Shuklaa, Abhishek Kumar Gupta*
b, Sarvesh Kumar Gupta .................................................................. 219
ICMM:205 | Dielectric Relaxation Studies of Aqueous Diethylamine from 10MHz To 50GHz Using A Time Domain Reflectometry .............................................................................................................................................. 220
A.R. Deshmukh1 and A.C. Kumbharkhane
1* .................................................................................................... 220
ICMM:206 | Dielectric, Spectral studies of gel grown Mg2+
Doped Copper Cadmium Oxalate Single Crystal 221 Rohith P S
1, Dr. Jagannatha N
1*, Pradeepkumar K V
1 ..................................................................................... 221
ICMM:208 | Novel In-situ Synthesis of 1D ZnWO4 Nanorods Decorated 2D g-C3N4 Nanosheets For Enhanced Visible-Light-Driven Photocatalysis ......................................................................................................................... 222
Ravindranadh Koutavarapu1, Bathula Babu
1, Ch. Venkata Reddy
1, Kisoo Yoo
1, #, Migyung Cho
2, #, Jaesool Shim
1, * 222
ICMM:213 | Resistive Switching Characteristics of Pt/TiO2/Al Structure under Optical Illumination ........... 223 Kiran D. More
1,2, Devidas I. Halge
1, Pooja M. Khanzode
1, Vijaykiran N. Narwade
1, Sumayya Begum
1, Shivaji G.
Munde1, Jagdish W. Dadge
3, Abhimanyu S. Rana
4 and Kashinath A. Bogle
1,* ................................................ 223
ICMM-2019 21 Book of Abstracts
ICMM:216 | Application of Synthesized Tetragonal Structured Zirconium Oxide Nanoparticle on Victoria Blue B and Acridine Orange Dye .................................................................................................................................... 224
Santhosh A.M1, Yogendra K
1, Mahadevan K.M
2, Madhusudhana N
1 ............................................................. 224
ICMM:222 | Enhanced Electrical Properties of Sr(Bi3.9La0.1)(Ti3.975Zr0.025)O15 Ceramic with the Doping of Nd 225 B. Mamatha
1*, K. Ashok
2, G. Neeraja Rani
1 and A. R. James
3 ........................................................................ 225
ICMM:224 | Growth, Optical and Thermal Properties on Co2+
Doped Copper Tartrate Single Crystals at Different Environmental Condition. ............................................................................................................................ 226
Pradeepkumar K V1, Jagannatha N
1*, Rohith P S
1........................................................................................... 226
ICMM:226 | Dielectric Relaxation Studies on Molecular Interaction in Binary Mixtures of Glycerol with n-Methyl-2-Pyrrolidone .................................................................................................................................................. 227
V. Manjulaa, b
, T. Vamshi Prasadc, K. Balakrishna
a, K.C. James Raju
d, T Vishwam
a* ....................................... 227
ICMM:230 | Thermal Properties of Pr2O3 dopedlead boro-tellurite glasses ................................................. 228 Sangeeta B. Kolavekar
1 and N. H. Ayachit
2* ................................................................................................... 228
ICMM:234 | The effect of cation-size variance on the relaxor nature and insulating character of the lead free Rb substituted Na0.5Bi0.5TiO3 ............................................................................................................................. 229
Krishnarjun Banerjee, Saket Asthana ............................................................................................................. 229 ICMM:235 | Optical Properties and Structural Studies of Eu
3+ ions doped Lead-Borate-Tellurite Glasses .... 230
Raju B. Katti1, V.K Pattar
2, K.R Sardar Pasha
3, N. Hanumantha Raju
4, V.C Veeranna Gowda
4* ..................... 230
ICMM:236 | Well-dispersed Amorphous carbon Nanotube-Alumina Nanocomposite in Engine Oil for Nanofluid with Improved Thermal Conductivity .................................................................................................................. 231
Sudipta Kumar Sarkar1, Arunava Jha
2, Kalyan Kumar Chattopadhyay
1,2* ...................................................... 231
ICMM:238 | Synthesis of garnet structured Ce doped Li7La3Zr2O12 electrolyte by solid state reaction method232 Anubha sodhiya
*, Arun kumar singh, Ranveer kumar .................................................................................... 232
ICMM:239 |Microwave Assisted Green Synthesis of Silver Nanoparticles using Punica Granatum Peel Extract: Evaluation of their Catalytic and Antibacterial activity ................................................................................ 233
Ruqya Banu1, 2
, G.Bhagavanth Reddy2, K Girija Mangatayaru
2*, ................................................................... 233
ICMM:241 | Variable Photoluminescence of Nano Zirconia Quantum dots by Hydrothermal Synthesis ...... 234 G. Deepthi Reddy
1, M. Noorjahan
1* and A. Ratnamala
2 ................................................................................ 234
ICMM:242 | Impact of Phytosynthetic Nanomagnetite Particles on Elusine Coracana (Finger millet) Hydroponic Seed Germination ................................................................................................................................................ 235
M. Hasheena1, A. Ratnamala*
1, G. Deepthi Reddy
2, M. Noorjahan
2 .............................................................. 235
ICMM:244 | Thermoacoustic Investigations on Nanofluids ......................................................................... 236 Swapnali P. Rajmane
1, Pratiksha D. Donolikar
1, V.A. Sawant
2, S. B. Sadale
2* ................................................ 236
ICMM:249 | Synthesis and Magnetic Properties of Nanostructured Ni1-xZnxFe2O4(x = 0.4, 0.5 and 0.6) ....... 237 Bhumireddi Sattibabu
1*, T. Durga Rao
1, A. K. Bhatnagar
2, S.Rayaprol
3, V.Siruguri
3 and D. Das
2 ................... 237
ICMM:250 | Study of Microstructure and Thermal Properties of PbTiO3 based Glass Ceramics ................... 238 J. Shankar
1*, A. Shiva Kumar
1, J. Anjaiah
1, P.Raju
1, G. Neeraja Rani
1 and V.K. Deshpande
2 ........................... 238
ICMM:252 | Radionuclide Sorption onto Nanoiron Oxy Hydroxide: Synthesis and Application to Natural Waters 239 Dasari Vasundara, Susarla Siva kumar, Thaticharla Kaleswararao ................................................................ 239 and Duvvuri Suryakala* .................................................................................................................................. 239
ICMM:255 | Research Processes of Oil and Paper Insulation of High-Voltage Equipment during Operation 240 G. Sree Lakshmi
1, Rubanenko Oleksandr
2, Rubanenko Olena
1, Hunko Iryna
2 ................................................ 240
ICMM:259 | An Improved Active Frequency Drift Islanding Detection Using Fuzzy Logic Technique ............ 241 Dr. A. Jaya Laxmi*, R. Pradeep, Ch. Anjamma, Etneni Rama Krishna ............................................................ 241
ICMM:262 | CNT-TiO2 Coated Silicon PV Cell for improved conversion efficiency ........................................ 242 Mohammed Fayaz
1, K.V. Sharma
2, P.H.V. Shesha Talpa Sai
3 ......................................................................... 242
ICMM:263 | A Study Of Dielectric Relaxation Properties of ZnFe2-xBixO4 nano Ferrite Particles Synthesized by Sol-gel Combustion Method .................................................................................................................................... 243
N Suresh Kumar .............................................................................................................................................. 243 ICMM:268 | Facile synthesis of MnWO4 nanostructure for supercapacitor application ............................... 244
Pratiksha D. Donolikar1, Sagar D. Jadhav
1, Deepak P. Dubal
2, Deepak R. Patil
3*, Shivaji B. Sadale
4* ............. 244
ICMM:270 | Phase Transitions in Dense Thermo-responsive Microgel Suspensions: A Monty Carlo Study . 245 Sivaram Vintha, Ranajay Datta, B.V.R. Tata
* ................................................................................................. 245
ICMM:278 | Synthesis and characterization of ZnO-CuO nanocomposites .................................................. 246
ICMM-2019 22 Book of Abstracts
K. Kavitha*, Dr. T. Subba Rao, Dr. R. Padma Suvarna .................................................................................... 246 ICMM:284 | Enhanced Thermal Stability Regime in K0.5Na0.5NbO3-Ta2O5-CO3O4 for Multilayer Ceramic Capacitor Applications ................................................................................................................................................. 247
Cilaveni Goutham, Abhinav Kumar, Saket Asthana1*
..................................................................................... 247 ICMM:286 | Surfactant Assisted Synthesis of Ruthenium Oxide Nanoparticles for High Performance Supercapacitors .................................................................................................................................................................... 248
N. Varalakshmi a, A. Lakshmi Narayana, Yejun Qiub
b, O.M. Hussain
c, N.Y. Sreedhar
a* ................................. 248
ICMM:287 | The Impact of Various Concentrations of Dopant on The Properties of Mn Doped Zns Quantum Dots in Presence of Thourea as Capping Agent ........................................................................................................ 249
Bijimol. D, Mamatha Susan Punnoose, Beena Mathew* ............................................................................... 249 ICMM:288 | Green Synthesis, Characterization and Catalytic property of Gold Nanoparticles using Biophytum sensitivum Leaf extract ................................................................................................................................ 250
Mamatha Susan Punnoose, Bijimol D, Beena Mathew* ................................................................................. 250
ICMM:289 | Structural and Thermal Properties of Ni-doped Molybdenum Disulfide (MoS2) Synthesized via a One-Step Hydrothermal Method ................................................................................................................................. 251
Niharika Chourasiya1*
, Arun Kumar Singh, Aksh kumar Verma and Ashish Verma ........................................ 251 ICMM:290 | Thermoelectric Properties of Topological Semimetal LiAuTe ................................................... 252
Anita Yadav1, Shailesh Kumar2,3, Manoharan Muruganathan4, Rakesh Kumar1 ........................................ 252 ICMM:294 | Biogenic Fabrication of Palladium Nanoparticles and its Applications ..................................... 253
K. Sandhya1, K. Girija Mangatayaru
1* ............................................................................................................ 253
ICMM:295 | Spin Transport Propertiesof CoFeCrGa/GaAs/CoFeCrGa through First Principles Calculations . 254 P. Rambabu
1,2*, V. Kanchana
1 ......................................................................................................................... 254
ICMM:297 | Structural, Morphological, Optical, Luminescence and Gas Sensing Characterization of Pure and Ce Doped SnO2 Nanoparticles Synthesised by Hydrothermal Method .............................................................. 255
D. Sunil gavaskar1, Y. Vijayakumar
2, P. Nagaraju
2, M.V. Ramana Reddy
1 ..................................................... 255
ICMM:301 | Improved Insulating and Dielectric Properties in Ho and Sc Doped BiFeO3 .............................. 256 T Durga Rao
1,2*, B. Sattibabu
1, Saket Asthana
2# ............................................................................................. 256
ICMM:401 | Investigation of the Structure, Dielectric and Ferroelectric Properties of Lithium Doped Lead Free Sodium Potassium Niobate Ceramic ......................................................................................................................... 257
A. Rashid and Dr N. V. Giridharan .................................................................................................................. 257 ICMM:405 | Spectroscopy Studies in Predicting the Extent of Damage in Portlandcement at Elevated Temperatures .................................................................................................................................................................... 258
Nari Vivek 1*
, B. Mahesh Reddy 1, B Shiva Kumar
1, K Ankush
1 ....................................................................... 258
ICMM:407 | Thermal Properties of Hybrid Natural Fiber Reinforced PolymerMatrix Composites with SiC as Filler 259 Devaiah Malkapuram
*, Murali Krishna, N.N. Denesh, G. Sai Siddharth Reddy,
J. Nithien ............................. 259
ICMM:408 | Mechanical Properties of Hybrid Natural Fiber Reinforced Epoxy Matrix Composites with SiC as Filler .................................................................................................................................................................... 260
Devaiah Malkapuram*, Murali krishna, N. N. Denesh, G. Sai Siddharth Reddy .............................................. 260
ICMM:412 |A Novel Lanthanum and Bismuth Based Self-Cleaning Nanocomposite for Organic Pollutants . 261 Thomas Abraham, Kannan. S, Beena Mathew* ............................................................................................. 261
ICMM:422 | Gamma Ray Interaction Studies of Some of Nucleosides in the Energy Range 122 to 1330 KeV262 Pradnya L. Agale, Pooja M. Sontakke, Chaitali V. More, Dr. Pravina P. Pawar .............................................. 262
ICMM:424 | Preparation and Characterization of Cobalt Ferrite Nanoparticles for Hyperthermia Applications263 Aqsa Samreen, Farha Naaz, Shaikh Saima Anam, Shaikh Zeba Anjum, K.M. Jadhav ..................................... 263
ICMM: 426 | An Overview on White Cast Irons and High Chromium White Cast Irons ................................ 264 Mbulelo Nqwase, Xiaowei Pan* ..................................................................................................................... 264
ICMM: 427 | Microstructural Investigation on Heat Treatment of Hypoeutectic High Chromium White Cast Iron 265 Mbulelo Nqwase, Xiaowei Pan* ..................................................................................................................... 265
ICMM:429 | Analysis of Camshaft for Straight Line Six Cylinder’s IC Engine ................................................. 266 D. Revathi
1, Dr. N. Sujan Rao
2, Dr. TVSMR Bhushan
3* .................................................................................... 266
ICMM:430 | Finite Element Crash Simulation Of an Automobile by using LS-DYNA ..................................... 267 Naikodi Chaitanya
1 and M.N.V. Ramesh
2* ...................................................................................................... 267
ICMM:432 | X-ray Attenuation Coefficient of Niobium compound Using Synchrotron Radiation Source in the Energy Range 18.913 to 19.668 keV ......................................................................................................................... 268
ICMM-2019 23 Book of Abstracts
G. Manjula1*
, Bunty Rani Roy1, Ashok Kumar Yadav
2, A.S. Nageswara Rao
1 ................................................. 268
ICMM:501 | Biological Evaluation of An Novel in-Situ Polymerised Polyaniline Cerium Vanadate Nanocomposite and its Application in Environmental Remediation ............................................................................................. 269
Vinisha Valsaraj P1*
, Anet2 .............................................................................................................................. 269
ICMM:503 | Effect of Sm3+
ions on Structural and Thermal Properties of PVA+PEG Nano Polymer Films ..... 270 V.Vinay Krishna
1, J.Suresh Krishna
2, M. Hemalatha
2, D. Siva Raju
2 and Ch. Linga Raju
2* .............................. 270
ICMM:504 | Synthesis and Property Analysisof Poly-Acryl-Amide (PAM)/Poly-Vinyl-Alcohol (PVA) Blend Thin Films .................................................................................................................................................................... 271
Rashmi S. Adoor1,2*
,Sushant A. Haladkar3, Susheelkumar G. Adoor
4, Narasimha H. Ayachit
5. ..................... 271
ICMM:505 | Effect of Phenol Red on the Optical Properties of Biodegradable Polymer Composite Films .... 272 Ismayil
1*, Swathi
1 ............................................................................................................................................ 272
ICMM:511 | Ferroelectric Polymer Composite as Radio Absorbing Material (RAM) for 5th
Generation Stealth Fighter Aircraft ........................................................................................................................................................ 273
Ayush Sharma1, Sudheendra. S. Kulkarni
2,* and Udaykumar.V. Khadke
3 ....................................................... 273
ICMM:514 | Effect of Copper Oxide nanofillers on PVA/PVP Blend ............................................................. 274 Rajesh K
1, Vincent Crasta
1** , Rithin Kumar N B
2, Gananatha Shetty B
1 ......................................................... 274
ICMM:515 | Synthesis and Characterization of Donor-Acceptor-Donor Type Polymer for NLO Applications275 *K. Balakrishna
a, R. Sampath
a, T. Vishwam
a, M. P. Joshi
b, S. Raj Mohan
b ...................................................... 275
ICMM:518 | Advancement in Structural, Morphological and Dielectric Studies of PVA filled TiO2 and ZnO nanocomposites .......................................................................................................................................... 276
Vincent Crasta1*
, B Gananatha Shetty1, Rajesh K
1, ......................................................................................... 276
ICMM:519 | Effect of Microcrystalline Cellulose Reinforcement in DOP Plasticized Melt-spun PHB Fibers .. 277 Moumita Mistri
1, 2*, Pavan Manvi
3, Bernd Michael Liebeck
4 Thomas Gries
3, and Bhanu Bhusan Khatua
2 .... 277
ICMM:520 | Annealing Effect on Magneto-Transport Property and Stress Induced Dynamic Elastic Moduli on a Co-Ni-Al FSMA ....................................................................................................................................................... 278
B. Rajini Kanth1,2*
, Md Sarowar Hossain2, and P. K. Mukhopadhyay
2 ............................................................ 278
ICMM:521 | Rheological Studies on Homogeneous and Inhomogeneous Core Dense Colloidal PNIPAM Microgels 279 M.V. Saisavadas
1, R.G. Joshi
2, M. Praveen Kumar
1, Surajit Dhara
1, B.V.R.Tata
1* ........................................... 279
ICMM:522 | Studies on Electrospraying Synthesis and mechanism of sol-gel Derived TiO2-ZrO2-Poly vinylpyrrolidone Composites as Bactericidal Self-cleaning Coatings ....................................................................................... 280
Sanu Mathew Simon1, Prakashan V P
1, Gejo George
1,2, Anoop Chandran
3, Sajna M S
1,4, Saritha A C
1, Biju P R
1, Cyriac
Joseph1, Unnikrishnan N V
1* ........................................................................................................................... 280
ICMM:529 | Finite Element Analysis on Fly Wheel Cup Manufactured with Polymer Matrix Composite (PMC) Reinforced with Fly Ash ............................................................................................................................... 281
*J Nithin Kumar,
K. Praveen Kumar, G Ravi Shankar, P Chucharita ................................................................ 281
ICMM:531 | NiO/Polyaniline Nanocomposite in View of Energy Storage and Electrochemical H2O2 Sensing Application .................................................................................................................................................................... 282
Saraswathi Kailasa1, M. Sai Bhargava Reddy B. Geeta Rani
1, Shubham Sharma
2, K. Venkateswara Rao*
1 .. 282
ICMM:538 | Laser Applications for the Optical Exploration of the Dy3+
Doped Li2O-CaF2-Al2O3- B2O3- SiO2 Glasses 283 D. Deenabandhu
1,K. Neeraja
2, K. Ephraim Babu
2*, , V. Venkata Kumar
3, K. Bueala Kumari
3, K. Samatha
4 and V.
Veeraiah4 ........................................................................................................................................................ 283
ICMM:539 | Iso-conversional Kinetics Study of Xanthan Gum Bio Polymer ................................................ 284 A.M.Shaker1
1, T.Lilly Shanker Rao
2**, T.Shanker Rao
3, K.Venkataraman
4 .................................................... 284
ICMM:545 | Studies on Mass Attenuation Coefficient, Effective Atomic Number and Electron Density of Some Biomolecules in the Energy Range 0.122 To 1.330 Mev ............................................................................... 285
Khan Faizan*, Shaikh Junaid, Farha Naaz, Aqsa Samreen, Shaikh Saima Anam, Shaikh Zeba Anjum, Pravina P.Pawar. ........................................................................................................................................................................ 285
ICMM:603 | ТiО2/Activated Carbon Composites: Synthesis, Structure and Adsorption Properties .............. 286 Anzhela Kukh*, Iryna Ivanenko ....................................................................................................................... 286
ICMM:608 | Room Temperature Ammonia Gas Sensing Properties of Nickel Oxide Thin Films ................... 287 K. GangaReddy
*, M.V.Ramana Reddy ............................................................................................................ 287
ICMM:616 | Structural Characterization of Layered Tin Mono-selenide Crystals Doped with Copper Grown by DVT Technique .................................................................................................................................................... 288
S. M. Bharthaniya1, K. R. Chaudhari
2, Ajay M. Agarwal
3*,G. K. Solanki
4 ........................................................ 288
ICMM-2019 24 Book of Abstracts
ICMM:620 | The Effct of Polygonal Pin Profiles on Temperature Profile of Friction Stir Welded Thick Dissimiar Materials ..................................................................................................................................................... 289
M.Mounika1, R.Venkateswara Rao
2* Y. Anuradha
2, Dr. G. Amarender Rao
3 ................................................. 289
ICMM:624 | Simple, Rapid and Solvent Free Synthesis of β – Nitrostyrenes from α, β-Unsaturated Carboxylic Acids In Presence of Poly Ethylene Glycol Supported Metal Nitrates ........................................................................ 290
K. Ramesh1 ...................................................................................................................................................... 290
ICMM:627 | Study of Transport and Magnetoelectric Properties of BiFeO3 Thin Films ................................ 291 Pratheek
1, B G Hegde
1* and N H Ayachit
2 ....................................................................................................... 291
ICMM:631 | Effect of V2O5 on the Properties of Lithium Bismuth Borate Glasses ........................................ 292 V. D. Raut
1, A.V. Deshpande
2 *, N. S. Satpute
3* ............................................................................................... 292
ICMM:633 | Utilization of Spray Coated Nano-crystalline Cadmium Sulfide Thin Film for Photo-Detector Application .................................................................................................................................................................... 293
Devidas I. Halge1, Pooja M. Khanzode
1, Vijaykiran N. Narwade
1, Sumayya Begum
1, Shivaji G. Munde
1,2, Kiran D.
More1, Janez Kovac
3, Jagdish W. Dadge
4, Abhimanyu S. Rana
5 and Kashinath A. Bogle
1,* ............................ 293
ICMM:635 | Efficient H2 Production by H2S Splitting Using CNT Blended Ce Doped TiO2 Thin Film Photocatalyst on Perspex Substrate ........................................................................................................................................ 294
M. Anthony Raja1, Preethi V
1*, Yash Pal
1, Naresh Nalajala
2, Chinnakonda S. Gopinath
2 ............................... 294
ICMM:636 | Photocatalytic Hydrogen Production from H2S Using Nanostructured CNT Blended CdZnS/Fe2O3 Thin Film on Glass Substrate ................................................................................................................................ 295
M. Anthony Raja1, Preethi V
1*, Yash Pal
1, Naresh Nalajala
2, Chinnakonda S. Gopinath
2 ............................... 295
ICMM:721 | Synthesis and Characterization of PbTiO3: Anthracene (C14H10) Multifunctional Ferrites Using by Solid State Reaction Method ............................................................................................................................... 296
Potharaju Krishna1, DayakarThatikayala
2, K.Shanthi
1 and C.P. Vardhani
1* ................................................... 296
ICMM:731 | Induction Motor Desgin Analysis for Electric Vehicle Application ............................................ 297 N.V.Bharadwaj
1*, Dr.P.Chandrasekhar
2,Dr.M.Sivakumar .............................................................................. 297
ICMM:737 | Design of Polymeric Type Spacer in a Single Phase Gas Insulated Busduct for Reduction of Electric Field Stress ........................................................................................................................................................... 298
K.Sushma1, G.V.Nagesh Kumar
1*, M.Aruna Bharathi
2and P.V.S.Sobhan
3...................................................... 298
ICMM:739 | Identification of Linear and Non Linear Curve Fitting Models Using Particle Swarm Optimization Algorithm .................................................................................................................................................... 299
P.Syamala Rao1, Dr.G.Parthasaradhi Varma
2, Ch.Durga Prasad
3 .................................................................. 299
ICMM:740 | Effect of Lithium Fraction on Glass Transition Temperature Tg And Ionic Conductivity σ of Lithium Borosilicotitanate Glasses ............................................................................................................................ 300
N.S. Satpute1, A.V. Deshpande
2* and V. D. Raut
3** ........................................................................................ 300
ICMM:755 | Intelligent Controllers for Grid Integrated RES System and their Challenges: A Brief Review ... 301 Sainadh Singh Kshatri
1, Dr. Javed Dhillon
1, Dr. M Aruna Bharathi
2 ............................................................... 301
ICMM:756 | Development of Nanostructure LiMn1.5Cu 0.5O4 usingMicrowave assisted Sol-gel Method ...... 302 M. Aruna Bharathi
1,*, R.S. Raju
1, K. Venkateswara Rao
2, M. Sushama
2, V. Subhashini
2................................ 302
ICMM:757 | A New Approach to the Construction of Transition Matrix with Application to Control Systems303 P. Sailaja
1, K.V. K. Viswanadh
2 and K. N. Murty*
3 .......................................................................................... 303
ICMM:2104 | Synthesis And Characterisation Of Iron Oxide Nanoparticles Using Egg-White ...................... 304 G. Srikanth
1, N. Jayarambabu
2, K. Venkateswara Rao
2** ............................................................................... 304
ICMM:2105 | Evolution of magnetic properties of Nano Ca-hexaferrites with Al substitution in hydrothermal synthesis ...................................................................................................................................................... 305
Ch. Mamatha1*
, P. Subhashini2, M. Krishnaiah
2 ............................................................................................. 305
ICMM:2111 | Optical and Structural Studies of B2O3-ZnO-Na2O-Li2O Glasses Containing Ag Nano Particles 306 A. Ashok, J. Bhemarajam, G. Upender, M. Prasad* ........................................................................................ 306
ICMM:2114 | Studies on Dielectric Properties of Polymer Blend of PANI with PVDF/KDP Composites ........ 307 Bharati Basavaraj
1,*, Hajeebaba K Inamdar
1,2 and Basavaraja Sannakki
1,* ................................................... 307
ICMM:2115 | Electrical Property Study on Polyaniline/Cadmium Oxidecomposites .................................... 308 Narsappa
1, Hajeebaba K Inamdar
2, Sasikala. M
3, M.V.N. Ambika Prasad
4* .................................................. 308
ICMM:2126 | A Density Functional Study of Hydrogen Storage in Li Decorated C20 Fullerene ...................... 309 Rakesh K. Sahoo
1*, Shakti S. Ray
1 Sridhar Sahu
1 ............................................................................................. 309
ICMM-2019 25 Book of Abstracts
ICMM:2128 | High Performance Er, Yb - Doped Ceo2 Bifunctional Upconversion Particles for Dye Sensitized Solar Cells with Platinum Free SnS Counterelectrode ................................................................................................... 310
A. Meenakshamma1, M. Gurulakshmi
1, S. Narendra Babu
2, M. Raghavender
1, * ........................................... 310
ICMM:2131 | Microstructural and Electrical Properties of Mg substituted Li4Ti5O12 Synthesized by Ceramic Method .................................................................................................................................................................... 311
B. Vikram Babu1*
, M. Sushma Reddi2, G. Chandana
1, A. Ramamkrishna
1, Tulu Wegayehu
1, K. Samatha
1, V. Veeraiah
1
........................................................................................................................................................................ 311 ICMM:2132 | Field Stress Control of a Post Type Insulating Spacer with Functionally Graded Material in a Gas Insulated Busduct ........................................................................................................................................ 312
N. Chaitanya Dathu1, G.V. Nagesh Kumar
1*, M. Aruna Bharathi
2 and B. Sravan Kumar
3 .............................. 312
ICMM:2133 | Insulation Integrity of Disk Type Spacer with U- type Graded Material in a Single Phase Gas Insulated Busduct ........................................................................................................................................................ 313
K.Sushma1, G.V.Nagesh Kumar
1*, M.Aruna Bharathi
2and Akanksha Mishra
3 ............................................... 313
ICMM:2135 | Structural Properties of Erbium (Er3+
) Substituted Cu-Cd Ferrite Nano Particles .................... 314 G. Vinod
1, J. Laxman Naik
1, K. Rajashekar
2, B. Naresh
1, B. Babu Rao
1 and D. Ravinder
1................................ 314
ICMM:2141 | Application of Magnetic Nanoparticles in Water Purification ................................................ 315 Shaikh Saima Anam, Vishwadeep Khosepatil, Dr. K.M. Jadhav ...................................................................... 315
ICMM:2145 | Investigation of the TiO2- Multi-wall carbon nanotubes (MWCNTs) composite as an effective photoanode in the dye sensitized solar cell ................................................................................................. 316
Sai Kumar Arla1, Hussen Maseed
2, Siva Sankar Sana
1, Venkataramana Badineni
1, Vijaya Kumar Naidu Boya
1,* 316
ICMM:2146 | Effect of Binder Material in Preparation of Carbon Free TiO2 as Photo Anode in Dye Sensitized Solar Cells ............................................................................................................................................................. 317
Sai Kumar Arla 1, Siva Sankar Sana
1, Venkataramana Badineni
1, Hussen Maseed
2, Vijaya Kumar Naidu Boya
1,* 317
ICMM:2147 | Modulational Instability in Diffusive Semiconductor Plasmas: Effect of Streaming Colloids... 318 P.S.Malviya
1*, N.Yadav
2 ................................................................................................................................ 318
ICMM:2149 | Synthesis and Characterization of Zirconia Nanoparticles ...................................................... 319 J. Vinay, D. Rakesh, CH. Shilpa Chakra* .......................................................................................................... 319
ICMM:2150 | Morphology Tailored 1-D Zn Nanorods for Supercapacitor Application ................................. 320 K. Jagadeeshwar Reddy
1, B. Geeta Rani
1, M. Sai Bhargava Reddy
1, K. Venkateswara Rao
1* ........................ 320
ICMM:2151 | Synthesis and Characterization of nano Sio2 Nanoparticles ................................................... 321 Pavar Saikumar, D. Rakesh, CH. Shilpa Chakra* ............................................................................................. 321
ICMM:2152 | Antioxidative copper nanoparticles for conductive inks ........................................................ 322 Gangarapu Akhila, D. Rakesh, Dr. Ch. Shilpa Chakra* .................................................................................... 322
ICMM:2155 | Enhanced Electrical and Optical properties of Al doped and ZnO nanoparticles for Optoelectronic Application: Eco-friendly Green Route ......................................................................................................... 323
Veena Ragupathi1, Manukonda Madhu babu
2, Puspamitra Panigrahi
1 and N. Ganapathi Subramaniam*
3 . 323
ICMM:2157 | Synthesis and Development of Silver nanoparticles decorated Polymer Films for Room Temperature Sensing ........................................................................................................................................................ 324
Anju Jolly1, Saraswati Kailasa
2*, Dr. Gurumurthy S C
1 .................................................................................... 324
ICMM:2159 | Structural and Electrical Properties of PANI+SWCNT Nanocomposites Prepared by Chemical Mixing Method ........................................................................................................................................................ 325
P. Raju1, A. Geetha
2, S. Uday Kumar
2, G. Neeraja Rani
1* ............................................................................... 325
ICMM-2019 26 Book of Abstracts
Programme Schedule
Day 1: December 19, 2019 (Thursday)
Time (IST) Programme Details
09: 00-
10:00 Registration (Block-I)
Inaugural Ceremony, Plenary and Invited Talks (Venue: Block-IV, Auditorium: NB 301)
10.00-
11.00 Inaugural Ceremony
11.00-
11.15 High Tea
11.15-
11.45 Keynote Address: Dr. Vikas Kumar
Former Director, DRDO-DMRL, Hyderabad 11.45-
13.00 Plenary Talk-1
Dr. Ajit R. Kulkarni
Institute Chair Professor
IIT -Bombay, INDIA
Title: Safer Multifunctional Sunscreen Active
Ingredient via Native Atomic Defects
Promotion – Concept to Commerce
Plenary Talk-2
Dr. N. Veeraiah
Professor, Acharya Nagarjuna University, India
Title: Influence of noble metal ions on electrical
and optical characteristics of non-conventional
animonate glass ceramics- Possible materials for
NLO and piezo-optical devices
Plenary Talk-3
Dr. James Raju
Professor, CASEST, School of
Physics, University of Hyderabad
Title: Microwave Resonators with
Bulk and Thin Film Solids
13.00-
14.00 Lunch Break
14.00-
15.30 Oral Presentations
Venue 1: Block I,
3rd Floor, Hall: 310
ICMM-149, 253, 254, 261,
269, 428, 701, 704, 705
Oral Presentations
Venue 2: Block I,
2nd Floor, Hall: 209
ICMM-109, 113, 119, 122,
148, 153, 302, 546, 2140
Oral Presentations
Venue 3: Block I,
3rd Floor, Hall: 311
ICMM-718, 720, 742, 748,
750, 753, 754
Oral presentations
Venue 4: Block III,
3rd Floor, Hall: N308
Invited Talk-1
Dr. Ganesh Kumar Mani,
Tokai University, Japan
Title: Mosquito Bite Inspired Microneedle
Technology for Health care Applications
ICMM-127, 151, 209, 214, 215, 243, 257,
2103 15.30-
15.45 Refreshment Break
15.45-
17.00 Poster Presentations ICMM-121, 154, 165, 169, 171, 208, 216, 239, 241, 242, 244, 252, 255, 259, 262, 263, 270, 278, 287, 288, 294, 297,
408, 412, 424, 426, 427, 429, 430, 501,511, 514,515, 518, 529, 549, 603, 620, 624, 721, 731, 737, 739, 755, 756, 2104, 2114, 2115, 2126,
2132, 2133, 2135, 2141, 2149, 2150, 2151, 2152, 2155, 2157, 2159
ICMM-2019 27 Book of Abstracts
Day 2: December 20, 2019 (Friday) Time (IST) Programme Details
08.30-
09.30 Registration
Plenary and Invited Talks (Venue: Block-I, 2nd Floor, Hall: 209)
9.30-
10.45 Plenary Talk-4
Dr. Tata Narasinga Rao
Scientist ‘G’ & Associate Director
ARCI, Hyderabad-India
Title: Indigenous Nanomaterials-Based Technologies A
“Make in India” Initiative
Plenary Talk-5
Dr. J. Janardhana Reddy
Chief Scientist “G”
DRDO-DMRL, Hyderabad
Title: Thermal efficient materials for
electronic applications
Plenary Talk-6
Dr. S.V. Manorama
Principal Scientist,
CSIR-IICT, Hyderabad
Title: Development of oxide based
functional materials for magnetic
refrigeration 10.45-
11.00 High Tea
11.00-
13.00 Plenary Talk-7
Dr. P.K. Jain
Scientist “G”
ARCI, Hyderabad-India
Title: Synthesis of Carbon
Nanomaterials Composites and
Their Interfacial Effects on
Properties
Plenary Talk-8
Dr. Evgeny Moos
Professor, Ryazan State
University, Russia
Title: Perspective Functional
Electronics on a Base
Synergistic Processes
Invited Talk-2
Dr. M.V.N. Ambika Prasad
Professor, Gulbarga
University
Title: Studies of Conducting
polymers and its applications
Invited Talk-3
Dr. K. Venkateswara Rao
Professor & Head,
CNST, JNTUH, Hyderabad
Title: Metal Oxide Nanostrutures
for Gas Sensing
13.00-
14.00 Lunch Break
14.00-
15.30 Oral Presentations
Venue 1: Block I,
3rd Floor, Hall: 310
ICMM-709, 715, 722, 723, 724,
726,729, 732
Oral Presentations
Venue 2: Block I,
2nd Floor, Hall: 209
ICMM- 108, 114, 117, 120,
137, 143, 201, 403, 2127
Oral Presentations
Venue 3: Block I, 3rd Floor,
Hall: 311
ICMM- 123, 124, 125, 126,
128, 409, 706, 707
Oral presentations
Venue 4: Block III, 3rd Floor, Hall:
N308
ICMM- 147, 221, 292, 634, 2108,
2113, 2121, 2130
15.30-
15.45 Refreshment Break
15.45-
16.45 Oral Presentations
Venue 1: Block I, 3rdFloor,
Hall: 310
ICMM- 410, 632, 744,
745, 746, 749
Oral Presentations
Venue 2: Block I,
2nd Floor, Hall: 209
ICMM- 103, 228, 277, 421,
537, 609, 611, 613, 614
Oral Presentations
Venue 3: Block I,
3rd Floor, Hall: 311
ICMM- 141,411, 425, 508, 523,
524, 607, 625, 708, 711, 712
Oral presentations
Venue 4:Block III,
3rd Floor, Hall: N308
ICMM- 534, 602, 606, 621, 622, 735,
741, 2116, 2125, 2156
16.45-
18.00 Poster Presentations ICMM-101, 111, 112,115, 116, 118, 130, 131, 136, 144, 146, 161, 162, 167, 168, 170, 205, 206, 213, 222, 224, 226,
230, 234, 235, 236, 238, 249, 250, 268, 284, 286, 289, 290, 295, 301, 401, 405, 407, 422, 432, 503, 504, 505, 519, 520, 521, 522, 531, 538,
539, 545, 608, 616, 627,631, 633, 635. 636, 740, 2105, 2111, 2128, 2131, 2145, 2146, 2147
18.00-
19.00 Cultural Programmes
19.00-
20.15 Conference Dinner
ICMM-2019 28 Book of Abstracts
Day 3: December 21, 2019 (Saturday) Time (IST) Programme Details
08.30-09.30 Registration
Plenary and Invited Talks (Venue: Block-I, 2nd Floor, Hall: 209) 9.30-11.00 Plenary Talk-9
Dr. Masahiro Sasaki
Professor, University of Tsukuba, Japan
Title: Nano-carbon materials from the
viewpoints of practical field electron emitters
Invited Talk-4
Dr. B.V.R. Tata
Professor, School of Physics
University of Hyderabad,
Hyderabad-India
Title: Photonic Bandgap Crystals: Physics,
Fabrication and Applications
Invited Talk-5
Dr. D.D. Ramteke,
University of Padua, Department of
Industrial Engineering, Italy
Title: Inorganic waste management:
for better tomorrow
11.00-11.15 High Tea 11.15-13.00 Oral Presentations
Venue 1: Block I,
3rd Floor, Hall: 310
ICMM- 248, 275, 402, 404, 512,
513, 536, 604, 629
Oral Presentations
Venue 2: Block I,
2nd Floor, Hall: 209
ICMM- 134, 157, 211, 266,
267, 282, 543, 2123, 2144
Oral Presentations
Venue 3: Block I, 3rdFloor,
Hall: 311
ICMM-133, 217, 227, 413,
502, 526, 527, 548, 719
Oral presentations
Venue 4: Block III,
3rd Floor, Hall: N308
ICMM- 110, 159, 218, 220, 231,
265, 285, 291, 2129 13.00-14.00 Lunch Break
14.00-15.00 Oral Presentations
Venue 1: Bock I,
3rd Floor, Hall: 310
ICMM- 516, 532, 734
Oral Presentations
Venue 2: Bock I,
2nd Floor, Hall: 209
ICMM- 207, 247, 264, 619, 626 15.00-15.15 Refreshment Break
15.15-16.30 Valedictory (Venue: Block-I, 2nd Floor, Hall: 209)
ICMM-2019 29 Book of Abstracts
List of Plenary and Invited Talks
ICMM-2019 30 Book of Abstracts
PT 1: Safer Multifunctional Sunscreen Active Ingredient via Native Atomic
Defects Promotion – Concept to Commerce
A. R. Kulkarni Department of Metallurgical
Engineering and Materials Science, Indian Institute of Technology- Bombay, Mumbai-400076
Abstract
Native atomic defects promotion in ZnO nanocrystals (NCs) has immense potential for
delivering innovative solutions for many challenging societal problems. In our laboratory,we focus
on developing different process chemistry to promote atomic defects in ZnO NCs. In this talk,
emphasis will be given to our recent innovation in photoprotection by taking advantage of defects
enabled optical transitions and surface chemistry in ZnO NCs. The defects promoted ZnO NCs are
proven to be a safer multifunctional sunscreen active ingredient by eliminating harmful UVA
emission usually found in commercial ZnO. In addition to this it offers cosmetic value along with
broadband UV protection. We have scaled up the process chemistry for defect-rich ZnO NCs to yield
10's of grams and successfully developed phase transfer techniques that allow an easy formulation
development for various skincare products. Considering the application potential and advancement
offered in the area of photoprotection, a leading specialty chemical industry is associating with us
for possible technology transfer. In view of this, our experience so far in the line of translational
research for multifunctional sunscreen active ingredient will be shared.
ICMM-2019 31 Book of Abstracts
PT 2: Influence of noble metal ions on electrical and optical characteristics
of non-conventional animonate glass ceramics- possible materials for NLO
and piezo-optical devices
J. Ashok and N. Veeraiah* Department of Physics, Acharya Nagarjuna University,
Nagarjuna Nagar- 522 510, A.P., India *Corresponding author. Mobile: (+91-9440015188);
Email:[email protected]
Abstract
Sb2O3based glass ceramics are known due to their high density and high refractive index. By
adding traces of noble transition metal ions like Ag and Au, these materials find potential
applications in several photonic, plasmonic, NLO, piezo-optical devices etc. Further, by admixing a
small quantity of alkali oxides like Na2O, these materials exhibit high magnitude of ionic
conductivity and hence can also be used as electrolytes in solid state batteries. In this talk we
present, details of synthesis of Na2O-Sb2O3:Au2O3/Ag2O glass ceramics, characterization of the
samples by XRD, SEM, TEM, EDS, XPS and DSC techniques. Characterization studies indicated
samples are embedded with multiple crystallites composed of antimony ions, AuO and AgO
nanoparticles. Structural analysis is carried out by means of OA, IR, Raman and PL spectral studies.
OA spectra exhibited SPR bands. Finally, quantitative studies on dielectric properties, impedance
spectra and σac over wide ranges of frequency and temperature were performed. Observed
dispersion of dielectric parameters is discussed in the light of various polarization mechanisms.
Dipolar orientational effects exhibited by electric moduli spectra were analyzed using Cole-Cole
plots. Variation of σac in the low temperature region is discussed using QMT model. Analysis of the
results of σdc indicated SPH model is valid in high temperature region while its variation in the low
temperature region follows VRH model. THG beam and piezo-optical coefficients were found to be
the maximal for the samples mixed with small quantities of Au2O3. The positron annihilation
spectroscopy studies have indicated decrease of free volume space with increase of Au2O3
concentration. The comprehensive analysis of the results of electrical properties (together with the
results of THG and PAS studies) indicated the samples doped with minute quantities of noble metal
oxides exhibit high conductivity and such materials are useful as solid electrolytes.
ICMM-2019 32 Book of Abstracts
PT 3: Microwave Resonators with Bulk and Thin Film Solids
K.C. James Raju 1CASEST, School of Physics, University of Hyderabad. *Corresponding author. Mobile: (+91) 9441917858;
E-mail:[email protected] Abstract
Resonators are an important component in microwave circuits used for frequency control. It
was one of the components that were difficult to miniaturize. Initially they were made with
waveguide cavities which are heavy and bulky. They could be replaced with solids with high
dielectric constant and low dielectric loss with low values of temperature coefficient of resonant
frequency. They came to be known as Dielectric Resonators. They brought down the dimension of
resonators from cm range to mm range. However for integration into miniature integrated circuits,
they were insufficient. Then the solutions found out mainly made use of the small acoustic
wavelengths in solids generated by electro acoustic conversion using piezoelectric effect. Using
piezoelectric substrates, surface acoustic wave (SAW) resonators came up. Further miniaturization
became possible once thin films of these materials were used. Resonators made with such thin
films are Film Bulk Acoustic Resonators (FBAR) and High Overtone Bulk Acoustic Resonators (HBAR).
An alternate method that has come up for microwave resonators is with micromachining. With
micromachining, it is possible to fabricate miniature mechanical resonant structures where as their
dimensions decrease, the resonant frequency will be reaching the lower GHz range. Using materials
like carbon nano tubes, the resonant frequency could reach GHz range. These miniaturized devices
are becoming more important for 5G applications as they employ large number of wireless
channels. Another area where they find increasing applications is with sensors. In this talk these
resonators will be introduced and the results generated by the author and his group will be
presented.
Keywords: Microwave Resonators; Electro acoustic resonance; Piezoelectrics; Dielectric
Resonators; FBAR.
Acknowledgements UGC, DST, DRDO, DAE. Reference James Raju KC, Miniaturization of Microwave Resonators, DOI: 10.31031/COJEC.2018.01.000504, COJ Electronics & Communications.
ICMM-2019 33 Book of Abstracts
PT 4: Indigenous Nanomaterials-Based Technologies A “Make in India”
Initiative
Tata Narasinga Rao Associate Director
International Advanced Research Center for Powder
Metallurgy and New materials (ARCI)
Balapur post, Hyderabad-500005, India
Abstract
The development and commercialization of nanomaterials-based technologies is occurring
globally at an increasingly rapid pace. While there is a significant increase in the number of
publications and patents, according to Lux research, the reported revenues from nano-products
have increased worldwide to an appreciable extent. Fortunately, India is sustaining in the
nanotechnology race and is successful in commercializing several technologies while maintaining a
strong hold on fundamental research. There is a huge scope for nanotechnogy commercialization
in India, provided research groups partner with industries and work on application development
specific to India, keeping the quality, cost, scalability and environmental aspects in mind, as the
competition in the present day’s open market is very high and challenging.
In the present lecture, ARCI’s efforts in application development of nanomaterials-based
technologies and their commercialization with the help of industry participation will be discussed.
While giving an overview of various applications being explored at ARCI, emphasis will be given on
two case studies dealing with nanotextiles (antibacterial & self-cleaning garments) and energy
storage devices (Li-ion batteries & supercapacitors) to showcase the importance of the selection of
nationally relevant research topics, and demonstrate the methods to transform laboratory research
to technology demonstration, further leading to commercialization. The role of industry for
successful commercialization of nanotechnologies, and selection of research topics aligning in line
with national missions such as “National Electric Mobility Mission” to eventually realize the “Make
in India” vision will be discussed.
ICMM-2019 34 Book of Abstracts
PT 5: Thermal efficient materials for electronic applications
J. Janardhana Reddy, V.V. Bhanu Prasad Defence Metallurgical Research
Laboratory, Hyderabad, India
Abstract
The continued drive for miniature electronic devices of high frequency and high power
necessitated the development of high thermal efficient materials. Thermal efficient materials
should have primary properties of high thermal conductivity and low coefficient of thermal
expansion (matching to devices) to avoid thermal shock failures and lower in density for space and
avionic applications apart from other application specified electromagnetic, electrical insulation
properties. While usual heat sinks materials for laptops are aluminium and copper, but their high
CTE, electrical conductivity are barriers for the electronic substrate applications. An overview of
different materials for high thermal conductivity is presented.
Aluminium nitride, Aluminium –Silicon carbide, Aluminium nitride-silicon carbide and
Copper-Cf composites are some of the promising materials for the heat sink applications.
Aluminium nitride (AlN) is potential material for high power devices substrates and collector rods
and rf windows in high power microwave tubes. By reinforcing it with silicon carbide up to 40%,
thermally efficient Lossy ceramic composite materials for absorbing the microwaves in high power
vacuum electronic devices can be made. Tailor made aluminium metal matrix composites
containing Silicon carbide as high as 70% is a potential material for carrier plate applications in
electronic packaging industry. Continuous carbon fibre reinforced copper matrix composites are
being considered for heat sink applications.
DMRL has been developing these thermally efficient materials through powder metallurgy
route by hot pressing techniques. The optimized hot pressing conditions resulted in compacts
having densities near to theoretical densities. Aluminium nitride made at DMRL density was 3.24
g/cc and the CTE 4.83 ppm/K and thermal conductivity at RT was 200 W/m.K. These compacts were
characterized for their thermal conductivity over a temperature range up to 10000 C. The
composites conductivity decreased with increasing silicon carbide content or temperature while
Copper-copper coated carbon fiber composites properties are directional. Aluminum-70% SiC
fabricated at DMRL had density 2.94 g/cc, CTE 7 ppm/K, TC 110 W/m.K.
ICMM-2019 35 Book of Abstracts
PT 6: Development of oxide based functional materials for magnetic
refrigeration
Sunkara V. Manorama Nanomaterials Laboratory, Polymers and
Functional Materials Division,
CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, Telangana. India.
Email: [email protected] and [email protected], web site: http://www.iictindia.org
Abstract
Materials Science is a fascinating field of science encompassing the design of materials for
applications not only for devices, healthcare, medicinal products and many more. It has the
mandate to improve quality of life. Undoubtedly, research and technological advances in materials
science plays an important role in strengthening, stimulating and sustaining the economic growth of
the country. In recent years, materials research has spawned countless advances in areas such as
energy both production and storage, consumer commodities, information technologies, medicine,
defense and agricultural sectors.
Imparting multi-functionality is one of the current thrust areas of research worldwide. In this
context semiconducting oxides have been surface engineering and made suitable for diverse
applications like in gas sensors, catalysis including photocatalysis, solar cells etc. Surface
engineering also makes these inorganic oxides suitable for applications in biology and biomedical
devices. Magnetic nanoparticle based structures have been designed as MRI contarst agents, for
PDT applications etc. In another such attempt magnetic materials are being explored as energy
materails.
The talk to be delivered at the International conference on multifunctional materials would
focus on the efforts of our group in the Nanomaterials Laboratory at CSIR-IICT in designing a special
class of functional magnetic materials exhibiting the 'Magnetocalorific Effect (MCE)' that is the basis
of magnetic refrigeration. If successful this would be a greener way for refrigeration. The talk
would showcase our efforts in synthesizing these mixed metal oxides and engineering them suitably
and demonstrating their applications in magnetic refrigeration. Findings from the ongoing research
activities would be presented.
ICMM-2019 36 Book of Abstracts
PT 7: Synthesis of carbon nanomaterials composites and their interfacial
effects on properties
Dr. P.K. JAIN
Scientist “G” & Head, Center for Carbon Materials, International Advanced Research Center for Powder Metallurgy & New Materials (ARCI),
Hyderabad – 500 005 [email protected] and [email protected]
Abstract
Many of our modern technologies require materials with unusual combinations of
properties that cannot be met by the conventional metal alloys, ceramics, and polymeric materials.
This is especially true for materials that are needed for aerospace, underwater, and transportation
applications. For example, aircraft engineers are increasingly searching for structural materials that
have low densities, are strong, stiff, and abrasion and impact resistant, and are not easily corroded.
Carbon is an extraordinary element and of great importance to the scientist as well as for
technologist. Its unique characteristics made it versatile for many applications areas ranging from
house holds as well as major industries on one hand in high tech aerospace, defence, nuclear
energy and new energy source program on the other hand. Nanocarbon technologies deal with
many forms of carbon (tubes, onions, sheets, diamonds, graphenes, etc.), among which nanotubes
and graphene / nano-plates are most widely used. These nano-carbons offer the unique set of
thermal, mechanical physical and electronic properties, which makes it the ideal material for
various engineering and technological applications. These unique and fascinating properties have
resulted in many potential applications for high volume as well as for the niche areas. The complex
behaviour of the interfaces will be optimum with respect to deboning and pull-out processes. The
nanomaterials synthesis and their different behaviour along with applications will be discussed in
details.
ICMM-2019 37 Book of Abstracts
PT 8: Perspective functional electronics on a base Synergistic processes
E. N. Moos
Ryazan State University, Department of Physics and Mathematics, Ryazan, Russia
Abstract
The synergetic aspect of the functional properties controlling of electronic materials is
considered in the report. A new aspect of the behavior of high melting metals such as W and Mo in
gradient fields is given, as well as, the observation of a similar effect for other isotropic cubic
crystals. It was found that, under the influence of a temperature gradient and an electric field, the
isotropic properties of these objects become anisotropic. The surface of the samples takes on a
substantially new structural form. In particular, it reveals a threshold character, namely, the need to
exceed certain critical (threshold) values of external gradients. All this speaks of the fluctuation-
dissipative nature of the rearrangement of the surface of poly- and single crystals. Possible practical
significance and application capabilities of this phenomenon are discussed. It is shown that the
thermodynamic nonequilibrium of the processes of influence on the surface of crystalline samples
can lead to the fractality of the structures formed by them. The issues of fractal dimension
management are discussed.
ICMM-2019 38 Book of Abstracts
PT 9: Nano-carbon materials from the viewpoints of practical field electron
emitters
Masahiro Sasaki1,2* and Yoichi Yamada1 1Institute of Applied Physics, University of Tsukuba,
Tsukuba, 300-8573, Japan 2Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, Tsukuba,
300-8573, Japan
*Corresponding author. Mobile: E-mail: [email protected]
Abstract
Nano-carbon materials such as graphene, fullerene, carbon nanotubes and their related
materials are known to possess quite various and unique electronical properties. Since some of
these have intrinsic sharp shapes with high aspect ratios, resulting in extremely large geometrical
field enhancement, the effects on field emission have already demonstrated by many researchers.
In my presentation, I will introduce the unique and unrevealed field emission features of nano-
carbon materials besides their geometrical field enhancement, which are applicable for practical
field emitters, and discuss the physics behind these field emission features. Here I will focus on the
field emissions from vacuum-arc prepared carbon film, fully graphitized pencil lead and C60
adsorbed on emitter tips. (1) Amorphous carbon thin films were deposited on W and Si tips by
means of arc-discharge of graphite rods in vacuum. These tips have shown field emission features
corresponding to very low effective work functions, although the macroscopic work function of this
film remains similar to that of graphite. The origin of these features is discussed on the basis of
scanning tunneling microscopy (STM) observations [1]. (2) The simply broken and completely
graphitized edges of pencil leads also showed high currents at very low applied fields, although the
tips were not sharpened. These features can be originated from graphene on the basis of the
energy distributions of emitted electrons [2]. (3) We have observed that the C60 deposited on W
tips gives very unique field emission microscopy (FEM) patterns, that is very similar to that of large
atomic-like orbitals, corresponding to the super-atomic molecular orbitals (SAMO) [3]. This suggests
that the electron orbitals of unoccupied states can be easily visualized by using FEM, which will
open the possibility to develop electronics based on the unoccupied states.
Keywords: field electron emission; nano-carbon materials; amorphous carbon; graphene; C60
References
S. Nagashima, et al., J. Vac. Sci. Tech. B 28, C2A13, 2010.
Y. Nishiyama et al., IVNC-IVESC 2019, 22-26 July, 2019, Cincinnati, OH USA.
M. Feng, et al., Science 320, 359 2008.
ICMM-2019 39 Book of Abstracts
PT 10: Modeling and Synthesis of High-Temperature Superconductors:
Problems and Perspectives
Andrei I. Sechnoi Samara University, Gymnasium No. 3, Samara, Russia
Abstract
Perspectives of search and synthesis of new superconducting compounds are discussed.
Phase modeling in physicochemical systems has been carried out using an algorithm for searching
for the stoichiometry of the elements in composition of complex oxides based on representation of
polyhedra of compositions of multicomponent systems in multidimensional space. An original
method of synthesis of the bulk multicomponent oxide materials (potentially having the property of
superconductivity) obtained via solidification process occurs during slow cooling of cuprate melts
under conditions of "jumping" change of oxygen pressure is proposed. Advantages and perspectives
of this method for increasing values of critical current density and possibly of critical temperature in
superconducting materials are argued.
ICMM-2019 40 Book of Abstracts
IT 1: Mosquito Bite Inspired Microneedle Technology for Health care
Applications
Ganesh Kumar Mani Micro/Nano Technology Centre, Tokai University,
Kanagawa, Japan 259-1292
*Corresponding author. Mobile: (+81) 4198 5591; E-mail: [email protected]
Abstract
Always there is great demand for in vivo testing to understand more about body metabolism
to provide effective diagnosis and therapy. Currently no industrial technology available for single
cell especially for pH, temperature or other cell metabolites. Compared to conventional sensors,
research on single cell microneedle sensor is still in its infancy due to their difficulty in fabrication,
poor flexibility, toxicity, scarcity of nanomaterials, instrumentation difficulty and poor stability.
Meanwhile painless micro/nano needles have been widely used for extraction of skin interstitial
fluid, vaccine and drug delivery over the past two decades, but their potential as sensor remains
largely unexplored. Therefore, we aim to develop single microneedle-based sensor for detection of
pH and other cell metabolites in single cell. A ~4.8 µm pH sensor was fabricated and tested it in-
vivo/in-vitro sensing capability was demonstrated. High stability and sensitivity make this novel pH
sensing microneedle is a cost effective and easy fabrication tool for biological sensing especially at
the single cell level. The developed sensor exhibited the Nernstian response of -46 mV/pH. The
fabricated microneedle sensor ability is proven by in vivo testing in mice cerebrospinal fluid (CSF)
and bladder. The pH sensor reported here is totally reversible and results were reproducible after
several routine testing. This type of sensor development definitely will bring new innovative ideas
that have the huge potential for drug development while continuous metamorphosis observation.
Keywords: Microneedle; Sensor, Nanosheets, Healthcare; Mosquito bite
Acknowledgements
Authors wish to express their sincere thanks to the Micro/Nano Technology Center (MNTC), Tokai
University (Shonan Campus), Japan for their infrastructural and financial support. Also the fellow
thanks to Japan Society for the Promotion of Science for funding support (Grant ID : P19076).
Reference
G.K. Mani, K. Miyakoda, A. Saito, Y. Yasoda, K. Kajiwara, M. Kimura, K. Tsuchiya, ACS Appl. Mater.
Interfaces 9, 21651–21659, 2017
G.K. Mani, M. Morohoshi, Y. Yasoda, S. Yokoyama, H. Kimura, K. Tsuchiya, ACS Appl. Mater.
Interfaces, 9, 5193–5203, 2017
ICMM-2019 41 Book of Abstracts
IT 2: Studies of Conducting polymers and its applications
Dr. M.V.N. Ambika prasad Department of Physics, Gulbarga University,
GULBARGA - 585 106, Karnataka
Email: [email protected], phone: 94484-05817
Abstract
Polymers by virtue of their light weight and greater ease of fabrication have replaced and are continuing to replace metals in several areas of application. The idea that plastics could be made to conduct electricity would have been considered to be absurd. Indeed, plastics have been extensively used by electronic industry because of their very good insulating property. This narrow perspective is rapidly changing as new class of polymers known as conducting polymers or electro active polymers are being discovered. For more than two decades now, researchers have shown that certain class of polymers which are conjugated (those possess extended π – conjugation along polymer backbone), exhibit semi-conducting behavior. The discovery of doping in polymers has led to further dramatic increase in the conductivity of such conjugated polymers to values as high as 105 Scm-1. The discovery of these conducting polymers has opened up new frontiers in material Chemistry and Physics.
The Noble Prize of the millennium awarded to Shirakawa, Heeger and Mac Diarmaid in Chemistry for the year 2000 for their contribution to conducting polymers, is a great recognition of the “dawn of new plastic age”. Polyaniline (PANI) has emerged as one of the most promising conducting polymers, because of its wide spread applications and due to the combination of unique properties like simple preparation and doping procedure, good environmental stability, relatively high conductivity and low cost. The increase concern about environmental protection has led to continuous expansion in sensor development. The inorganic–organic composites containing polymer as the organic base and Tungsten oxide, Cobalt oxide and Cerium oxide as inorganic part have been used for studying its humidity sensing.. These composites have been synthesized by in situ deposition technique by placing fine graded WO3, CeO2 and Co3O4 in polymerization mixture of aniline. The results are well supported by FTIR spectral analysis, Scanning Electron Microscopy, XRD and Conductivity measurements. High temperature conductivity measurements show thermal activated behavior. The change in resistance with respect to percent humidity (RH) is observed. The composites in the pellet form exhibit almost linear behavior within a chosen range of humidity ranging between 10 and 95% RH. It is observed that PANI- WO3, PANI- CeO2 PANI- Co3O4 composites are promising materials for humidity sensors.
Similarly, investigation has been carried out on polyannline-magnesium chromate composites for the low concentration detection of LPG at room temperature. It is observed that electrical resistance increases with increase in the concentration of the gas. In case of polyaniline / MgCrO4 composites both the PANI sensing mechanism of swelling and MgCrO4 sensing mechanism of surface charge are responsible for variation of resistance within the sensing material. Therefore, it is observed that Polyaniline (PANI) / magnesium chromate (MgCrO4) to be a competent sensing material for LPG. Similar behavior for the Polymer / Nano metal oxide composites such has PANI-
ICMM-2019 42 Book of Abstracts
V2O5,PANI-In2O3 and PANI-Ga2O3 have shown increase in resistance with increase in concentration of the LPG and this may be due to formation of surface charge and presence of capillary pores.
The microwave absorption / reflection characteristics of prepared composites have been studied in the X–bond (8-12 G Hz). Microwave properties such as Absorption and Transmission evaluated from S- parameter measurements are reported. These materials are found to have very good electromagnetic absorption and can be potential candidates for microwave absorbing applications. The Fourier transforms infrared spectroscopy spectra indicate a characteristic peaks which confirms the formation of composites. Scanning electron microscopy image indicates that the metal oxides are agglomerated with polypyrrole due to that the size of the composite particles increases to 7mm. The real part of permittivity (€0) at X-band measurements of all samples first decrease and then increase in the higher frequency range. Meanwhile, the values of €00 for polypyrrole–zirconia composites changes spontaneously due to the scattering of free charges explained by Kramers–Kronig relations. The reflection loss graph shows that the maximum reflection loss (RL) reaches up to 54.6dB at 10.8GHz and the effective absorption bandwidth is 6.7GHz.
Similarly, investigation has been carried out on the synthesis of polypyrrole/Ni-doped nanocomposites (NCs) as a protective pigment in organic coatings. Polypyrrole/Ni-doped NCs were prepared by in situ chemical oxidative polymerization of pyrrole monomer in the presence of ammonium per sulfate (APS) as oxidant. Ni-doped nanoparticles (NPs) synthesized by green synthesis, i.e solution combustion method using Aloe-Vera gel as a fuel Different concentrations of Ni (10-50 wt %) NPs were incorporated into the polypyrrole. The obtained final product was well characterized by means of powder X-ray diffraction (PXRD), Ultraviolet visible spectroscopy (UV-Vis), DC Conductivity ,scanning electron microscopy (SEM), and transmission electron microscopy (TEM).The size of the NPs were calculated by using Debay Scherer and Williamson-Hall methods, and it was found to be around 20 nm. TEM results are in consistent with the PXRD results. The morphology of the obtained product shows the porous and agglomerated particles which are due to large amount of gas evolution during NPs synthesis by solution combustion method. The present study demonstrates that the prepared samples are quite useful for electrochemical storage applications.
Keywords: polypyrrole; nickel oxide; nanocomposites; xrd; tem; dc conductivity
ICMM-2019 43 Book of Abstracts
IT 3: Metal Oxide Nanostrutures for Gas Sensing
K. Venkateswara Rao
Centre for Nanoscience and Technology, Institute of Science and Technology,
JNTU Hyderabad, India
Abstract
Studies on semiconducting metal oxides for high precision chemiresistive gas sensors has
attracted lot of attention because of their advantages like flexibility, low power consumption, easy
production and miniaturization for domestic and industrial applications. When these metal oxides
form various nanostructures based on the morphology variation, a significant effect on
chemisorption or physisorption process during detection of toxic gases are observed. The current
study highlights the design and mechanisms of different metal oxides nanostructures like nanorods,
nano-rice shaped, nanoflowers, and nanosheets for sensing hazardous gases. The morphology of
the synthesized nanostructures was confirmed by electron microscope. The phase and crystallite
size were elucidated using X-ray diffraction studies. The functional groups present, were verified by
Fourier transform infrared spectroscopy. The results show that sensing material and the structure
of the sensing layer plays a crucial role in analytical gas sensing characteristics like sensitivity,
selectivity, response and recovery time and optimum operating temperatures due to various factors
like surface area, porosity, uniform alignment of nanostructures and availability of active sites for
adsorption/ desorption of target gases.
ICMM-2019 44 Book of Abstracts
IT 4: Photonic Bandgap Crystals: Physics, Fabrication and Applications
B.V.R. Tata*
School of Physics, University of Hyderabad, Gachibowli, Hyderabad-50004, India
*Corresponding author. Mobile: (+91) 9444463933; E-mail:[email protected]
Abstract
Advances in the synthesis of nearly monodisperse colloidal nanoparticles have made it possible to fabricate crystalline arrays of nanoparticles (known popularly as Colloidal Nano Crystalline Arrays) with lattice parameters close to the wavelength of light. Light travelling through such crystals experiences a periodic variation of refractive index, analogous to periodic potential energy of an electron in an atomic crystal. This variation in refractive index in three dimensions with hundreds of nanometres periodicity is responsible for photonic band structure in these crystals. Thus these crystals are also known as photonic crystals/photonic band gap (PBG) crystals and have several emerging applications such as Bragg diffraction devices, optical filters and switches, photonic bio-sensors, non-bleachable display materials etc. Large single crystalline domains are crucial for some of these applications and lithography based approaches are unrealistic. The talk presents an overview of self-assembly methods employed in my lab for fabricating PBG crystals using, polystyrene, silica, and stimuli-responsive poly(N-isopropylacrylamide)(PNIPAM) nanogel particles. Issues involved in impregnating stimuli-responsive microgel particles with semi-conductor quantum dots for fabricating photonic crystal alloys and Holographic Optical Tweezers for fabricating seed crystals with desired symmetry and lattice constants will also be discussed. PBG crystals are capable of manipulating the interaction of light with matter at the micro/nano scale. This property finds several applications as bio-sensors, non-bleachable display materials, visual strain gauges etc. and the talk presents some of these applications. Keywords: Photonic Crystals; Photonic band gap; Colloidal Nanoparticles; Colloidal crystals Acknowledgements Author acknowledges my past students J.Brijitta, R.G.Joshi, D.K.Gupta, D. Karthickeyan and P.K. Mohanty for their contributions to this area of research and for the discussions. References 1. R. G. Joshi, D. Karthickeyan, D. K. Gupta, B.V.R. Tata, Colloids and Surfaces A: 558, 600, (2018). 2. D.K. Gupta, B.V.R. Tata and T.R. Ravindran, Applied Optics, 57, 8374 (2018). 3. D. Karthickeyan, R. G. Joshi, and B. V. R. Tata, J. Chem. Phys. 146, 224503-8 (2017). 4. B.V.R. Tata and R. G. Joshi , SMC Bulletin 6, 69 (2015). 5. B.V.R. Tata, R.G. Joshi, D.K. Gupta, J. Brijitta and Baldev Raj, Current Sci., 103, 1175 (2012).
ICMM-2019 45 Book of Abstracts
IT 5: Inorganic waste management: for better tomorrow
D D Ramteke1,2 1Universita' degli Studi di Padova, Dipartimento di
Ingegneria Industriale Edificio Ex Fisica Tecnica,
Via Marzolo, 9, 35131 Padova, Italy 2Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín,
Slovakia
Contact: - https://ddphyvnit.wixsite.com/mysite
Abstract
Stabilization of waste is the main challenge in today’s world. The change in life style and
living standards of human beings produces billions of tons of waste every day. Stabilization of these
waste is the key demand for the environment protection. Stabilization of inorganic waste is possible
by using the glasses, but main criticism is related to costs and energy use. Also effectiveness
depends on the starting materials e.g. silica-rich waste favor the obtainment of glass, iron-rich
wastes affect the functionalities, influencing the porosity in cellular glass-based materials as well as
catalytic, magnetic, optical and electrical properties. Engineered formulation may lead to reduction
in the processing cost and energy required in the solid waste management. Stabilization of
industrial slag in the glass matrix is the best example of inorganic waste management engineering.
For the successful stabilization of inorganic waste multidisciplinary approach is crucial. Alkali
activated materials are the major step in this direction. These materials are the output of the
reaction of an alumino-silicate raw material in alkaline media (in general often referred as geo-
polymers). In alkaline aqueous media, alumino silicate compounds form ‘inorganic oligomers’
results in zeolite like gel formation. This gel consist a network of [SiO4] and [AlO4] tetrahedral
surrounded by alkali ions for the charge compensation. The alkali ions remain substantially
‘trapped’ in the gel, for an optimum Al2O3/SiO2 balance in starting materials, with the achievement
of chemically stable products. The stability can be further tested by entrapping pollutant from
industry. With entrapment of air bubble by using surfactant followed by firing, one can form cellular
glass-ceramics. Other method of waste management includes zeolite formation by using NaAlO2
and phosphoric acid based geo-polymers. These recycled product are useful in the building industry
and as a potential electromagnetic shielding.
ICMM-2019 46 Book of Abstracts
List of Oral Presentations
ICMM-2019 47 Book of Abstracts
ICMM: 103 | Raman, FTIR and XPS Studies of Oxyfluoro -Phosphosilicate
Glasses
Vootukuru John Reddy1,2, H. Umamaheshwari3* R. Padmasuwarna1,
Venkata Krishnaiah Kummara4*, Ravi Nirlakalla4
1Department of Physics, Jawaharlal Nehru Technological University, Anantapur, India.
2Department of Physics, Nalla Narasimha Reddy Group of Institutions, Chowdariguda,
Hyderabad, India. 3Department of Physics, Sreenivasa Institute of Technology & Management Studies, Chitoor, India.
4Department of Physics, Rajeev Gandhi Memorial College of Engineering & Technology, Nandyal, India.
*Corresponding author. Mobile: (+91) 9293172363; E-mail: [email protected]
Abstract
Lanthanide (Ln3+
) doped oxyfluoride glasses have been investigated for diverse applications such as
lasers, optical amplifiers, laser cooling and optical waveguides. In this work, we have prepared
bismuth-phosphosilicate glasses with the chemical composition of 50 P2O5 + 25 NaF2 + 10 SiO2 +15
Bi2O3 (PNfSiBi) by usual melt-quenching method. Structural investigations were performed through
fourier transform infrared (FTIR), Raman and x-ray photoelectron spectroscopy (XPS) for PNfSiBi
glasses. FTIR spectrum reveals the vibrational modes at 370, 412, 468, 904, 1215, 1536, 1648, 1742,
2360, 3603 and 3736 cm-1
in the range of 400 – 4000 cm-1
. The laser micro-Raman unveiled different
vibrational bands centred at 531, 722, 1116, 1487, 1825, 2123 and 2646 cm-1
recorded from 100 –
3000 cm-1
. Highest intense band was positioned for PNfSiBi glasses at 1116 cm-1
which is owing to
symmetric stretching of non – bridging oxygen on a Q2
P tetrahedron. Elemental compositions and
binding energies of elements were explored from XPS analysis. Binding energies of PNfSiBi glasses
were obtained as 157 and 163 eV for bismuth (Bi) which situated in the 4f state (4f7/2 and 4f5/2), 100
eV for silicon (Si(2p)), 132 eV for phosphorous (P(2p)) and 1069.7 eV for (Na(1s)). From FTIR
analysis, a relatively low intensity of OH- ions in the PNfSiBi glasses could be a flexible candidate to
accommodate different Ln3+
ions to explore them for photonics applications.
Keywords: Phosphosilicate; bismuth oxide; oxyfluoride glasses; structural properties.
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author.
ICMM-2019 48 Book of Abstracts
ICMM: 108 | Fluorescent Trilayer OLED Device: an Electrical and Optical
Characterization Based Simulation
Arvind Sharma, Sagar Bhattarai, and T. D. Das
* Department of Basic & Applied Science, National Institute of Technology, Arunachal Pradesh
791112, India.
*T.D.Das. Mobile: (+91) 8901576358; E-mail: [email protected]
Abstract
A comprehensive simulation model for a trilayer OLED device (ITO/NPB/Alq3/TPBi/Al)
structure to demonstrate the carrier transport and optical characterization using a commercially
available software package. It is evident from the J-V curve and depicted when the turn-on (knee)
voltage is 6 V, the mean current density and electrical input power are 10 µA/cm2 and 59 µW/cm
2,
respectively.The device performance factor like external quantum efficiency (EQE) is 55-66% in the
wavelength region 300 to 450 nm, 4.35 for Vbias=8 V, and 6% at 50 nm thick EML. Among the
different thickness, a quite remarkable improvement for the 50 nm thick EML has luminance
concerning charge density 10,000 cd/m2 and the bias voltage by about 700 cd/m
2. The spectral
irradiance for the OLED device is 0.06 Wm-2
nm-1
sr-1
maximum in the spectral region 400-760 nm.
Thus, the CIE curve studied at a distinct angle and different thickness of EML that shows the peak
get shifted in thickness dependence case. This study provides an effective way to further optimize the
efficiency of the OLED device with a better suitable thickness.
Keywords: Knee voltage, Luminance, External quantum efficiency.
Acknowledgments
Author Arvind Sharma is the fellowship recipient of SERB-EMR project (SERB/2016/006121) for
carrying out his Ph.D. research work on inorganic and organic semiconductor materials at NIT
Arunachal Pradesh.
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ICMM-2019 49 Book of Abstracts
ICMM: 109 | CONCEPT OF DEVELOPING THE MULTI FUNCTIONALFIXTURES
USING MAGNET RHEOLOGICAL FLUID.
GANDLA UDAYASREE
Assistant Professor, St.peters Engineering college, Misamma guda, Hyderabad, 500100,
India.
*Corresponding author. Mobile: (+91) 9491684278; E-mail:[email protected]
Abstract
Smart materials are playing a major role in today's technology because of its inbuilt characteristics.
This paper deals with one of such smart material called "Magnet rheological fluid (MRF) ". This
fluid is chosen for the development of fixture because of its response to magnetic field. There is a
remarkable development in every field of engineering & technology which is the main cause of
designing new equipments, vehicles & machines which contains few complicated parts. These
complicated parts require specially designed fixtures to hold it during machining operations. The
design &developing of these fixtures is a time & money consuming process. The development of
multi functional fixtures will save both time & money. Considering this necessity as a factor the
development of Multi functional fixtures using magnet rheological fluid is poposed.
Keywords: Smart materials, Magnet rheological fluid, Multi functional fixtures
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ICMM-2019 50 Book of Abstracts
ICMM: 110 | Tuning Magnetic Anisotropy in Fe1-xNix Thin Films: Theeffects
of composition and substrate temperature
D. Taparia,1 J. Arout Chelvane2, A. Srinivasan1 and Perumal Alagarsamy1 1Department of physics, Indian Institute of Technology Guwahati, Guwahati – 781039, India
2Advance Magnetic Group, Defence Metallurgical Research Laboratory, Hyderabad 500058,
India
Email: [email protected]; [email protected]
Abstract
FeNi thin film has recently attracted enormous interest due to its large magneto-crystalline
anisotropy (Ku) and high saturation magnetization (MS) and acts as a viable candidate to replace
lower energy-density ferrites and Alnico magnets or rare-earth containing permanent magnets in
elevated temperature applications [1]. In this work, we report systematic investigations of tuning
magnetic anisotropy, structural, magnetic propertiesand magnetic domain structures of Fe1-
xNix(x=49-57) thin films. All the Fe1-xNixfilms were prepared by using magnetron sputtering
technique directly on Si(100) substrate kept at different substrate temperatures (TS). Crystal structure
of the films was characterized by using X-ray diffractometer (Rigaku TTRAX III 18 kW). Thickness
of the films were calibrated ex-situ using surface profilometer (Vecco Dektak 150). Room
temperature and temperature dependent magnetic properties were measured using vibrating sample
magnetometer (LakeShore VSM 7410). Magnetic domain images were analysed using Kerr
microscopy (Evico Magnetics, Ltd., Germany). Fe1-xNix films deposited at ambient temperature
exhibit weak L10 ordered structure. On the other hand, with increasingTS, the degree ofL10ordering is
enhanced up to 250 C for all the compositions.Magnetic studies reveal that the values of MS and Ku
increase progressively with increasing Fe content and exhibit a maximum of 720 emu/cc and 5.2106
erg/cc, respectively for Fe51Ni49 thin films prepared at 250C. The systematic investigations of the
effects of compositions and TS on the ordering and tuning of magnetic anisotropy and magnetic
domain structures in Fe1-xNix thin films will be presented in detail.
Keywords: FeNi films, Magnetic anisotropy, Magnetic domain
ICMM-2019 51 Book of Abstracts
ICMM: 113 | Comparative analysis of the stuctural properties of Cr-Zn andCr
Co Nanoferrites
Dr. M. Lakshmi* *Vidya Jyothi Institute of Technology, Aziznagar Gate, C.B.Post, Hyderabad,
Telangana-500075, India.
Mobile: (+91) 9000207926; E-mail: [email protected]
Abstract
The series of Cr-Zn and Cr-Co nanoferrites bearing the general chemical composition Cr x Zn
Fe2−x O4 and Cr x Co Fe2−x O4 (0 ≤ x ≤ 0.5) were successfully synthesized by sol–gel method. The
prepared samples were annealed at 900 °C temperature for 3 hours. The aim of the present
comparative analysis was to investigate the impact of Cr3+
ion substitution on the structural
properties of Cr–Zn and Cr-Co nanoferrite systems. Various characterization techniques such as
XRD, FTIR, SEM, TEM, etc. were used to investigate the structural properties of both nanoferrite
samples. XRD patterns of the both ferrite samples provide information about the existence of single
phase spinel structure.The average crystallite size was found to be ranging from 24–34 nm and 56-
75nm in case of Cr-Zn and Cr-Co ferrite systems respectively. The analysis revealed that with the
increase in Cr- concentration (x), the average crystallite size decreased graduallyin Cr-Zn ferrite
system but decreased non-linearly in Cr-Co ferrite system.FTIR spectra show that the bands υ1
and υ2 are found to shift towards the higher frequency side with substitution of Cr3+
ions. SEM and
TEM micrographs demonstrated that nanoparticles with narrow size distribution were obtained.
The results indicated that the amount of Cr contents significantly influenced the crystal morphology
and structural properties of both Cr-Zn and Cr-Co nanoferrites.
Keywords:Sol-gel method; Cr-Co ferrite; Cr-Zn ferrite;structural properties.
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ICMM-2019 52 Book of Abstracts
ICMM: 114 | Sr3Gd(PO4)3:Sm3+ nanophosphors for lighting applications
P. Shahab Khan1,2, B.C. Jamalaiah2*, B. Narasimha Rao3, G.V. Lokeswara
Reddy4
1Research Scholar, Jawaharlal Nehru Technological University, Anantapur 515003,
India
2Department of Physics, Rajeev Gandhi Memorial College of Engineering & Technology
(Autonomous), Nandyal 518501, India
3Department of Physics, S.V.R. Engineering College, Nandyal 518501, Andhra Pradesh, India
4Department of Physics, S.C.N.R. Government Degree College, Proddatur-516360, India
*Corresponding author. Mobile: (+91) 6281352463; E-mail:[email protected]
Abstract
Different concentrations of Sm3+
ions activated Sr3Gd(PO4)3 nanophosphors were prepared
by modified citrate gel combustion technique. The synthesized materials were characterized through
thermal, structural and visible luminescence studies at room temperature. The crystalline phase was
examined via powder X-ray diffraction studies and found to be consistent with PCPDS No. 29-1301.
The photoluminescence excitation analysis was carried out monitoring the emission at 610 nm
corresponding to the Sm3+
: 4G5/2 →
6H7/2 transition. Upon excitation at 402 nm, the studied
phosphors exhibit 4G5/2 →
6H5/2,
4G5/2 →
6H7/2,
4G5/2 →
6H9/2 and
4G5/2 →
6H11/2 transitions [1-3].
Among these, the Sm3+
: 4G5/2 →
6H7/2 transition show maximum intensity resulting strong and
intense orange luminescence from the Sr3Gd(PO4)3: Sm3+
nanophosphors. The emission spectral
profiles exhibit luminescence quenching at 1.0 mol% of Sm3+
ions. The lifetime of Sm3+
: 4G5/2
emission level was found decrease with the addition of Sm3+
concentration. The quenching of
luminescence and the lifetime was ascribed to the energy transfer at higher Sm3+
ions concentration.
The Sr3Gd(PO4)3: Sm3+
nanophosphors containing 1.0 mol% of Sm3+
ions show excellent
potentiality for lighting applications.
Keywords:Strontium phosphate; Nanophosphors; Combustion synthesis; Luminescence; White LED
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author.
ICMM-2019 53 Book of Abstracts
ICMM: 117 | Spectroscopic Studies on Alkaline earth ions on Bisumuth
based oxide Glasses
*Ch. Srinivasua, A. Edukondalub, S. Stalinc and Syed Rahmanc *Department of P&C, MGIT, Gandipet, Hyderabad, India.
bUniversity College for Women, Koti, Hyderabad, India
cDepartment of Physics, Osmania University, Hyderabad, India
Mobile: (+91) 9885476782; E-mail:[email protected]
Abstract
A series of glasses were prepared by melt quenching method in the glass system
10LiF-40Li2O-20RO-30Bi2O3 where R= Mg, Ca, Sr & Ba. XRD analysis has confirmed that the
samples are X- ray amorphous.The glass samples are characterized byopticalabsorption, Raman and
Fourier transform infrared spectroscopy(FTIR). Density of glass samples were measured using
Archimedes principle. It was found that, the densities of the glass increased in the order of MgO <
CaO < SrO < BaO as expected from the relative masses of the alkaline-earth ions. IR spectra of all
glass samples exhibited number of absorption peaks. With the introduction of LiF, the band at 865
cm-1
which is assigned to the symmetrical stretching vibrations in the BiO3 pyramidal units decreases
in intensity and the band at around 490 cm-1
shifts to lower wave number which can be due to the
formation of Bi-F bonds. From Raman spectra of the present glasses it can be observed that with
introduction of alkaline earth oxides from MgO to BaO into the present glasses, the intensity of the
bands corresponding to Bismuthate units [BiO3 and BiO6] decreases form BaO to MgO. This is also
conformed from the present IR spectra, where the intensity of the bands decreases with the
introduction of alkaline earth elements from BaO to MgO.
Key words: Glasses, MDSC, FTIR, Optical Absorption, Alkaline earth Oxides.
ICMM-2019 54 Book of Abstracts
ICMM: 119 | Observation of Dielectric Anomalies at Magnetic Phase
Transitions in0.5(BiFeO3) – 0.5(Ba0.9Sr0.1TiO3) Multiferroic Ceramic
T. Sreenivasu1, K.S.K.R. Chandra Sekhar1, Anantharao Paila1, B. Suryanarayana1, K. Chandra Mouli1, J. Praveen Kumar2 and Patri Tirupathi2*
1Department of Engineering Physics, Andhra University College of Engineering,
Visakhapatnam-530003, India. 2Department of Physics, Rajiv Gandhi University of Knowledge Technologies, (AP-IIIT)
RK Valley- Kadapa district, Andhra Pradesh - 516330, India
.3St.Martin’s Engineering College, Dhullapally, Secunderabad -500100, India
*Corresponding author. Mobile: (+91) 7674862873; E-mail:[email protected]
Abstract
The Sr2+
substituted 0.5(BiFeO3)-0.5(Ba0.90SrxTiO3) (x=0.10) ceramic has been synthesized
by a conventional solid state reaction method. The structural analysis was carried out by room
temperature x-ray diffraction and Raman spectra. The study reveals stabilization of tetragonal phase
with P4mm space group. The coexistence of ferroelectric transition (TC = 270˚C) and diffuse
frequency independent dielectric anomaly at TN~ 445˚C were observed in temperature dependent
dielectric studies. The simultaneous enhancement in ferroelectric polarization (Ps) ~ 9.4 µC/cm2 and
magnetization Ms~2.8 emu/g, at room temperature was observed, which indicates BFBST is a good
multiferroic material for future spintronic device applications.
Keywords: Multiferroic, BiFeO3, BaSrTiO3
ICMM-2019 55 Book of Abstracts
ICMM: 120 | LiGd (1-x)(WO4)3:xEu3+ nanophosphors for photonicapplications
P. Raghupathi1,2,3, B.C. Jamalaiah2*, T. Subrahmanyam4, K. Venkata Rao5
1Research Scholar, Jawaharlal Nehru Technological University, Anantapur 515003,
India 2Department of Physics, Rajeev Gandhi Memorial College of Engineering & Technology
(Autonomous), Nandyal 518501, India 3Department of Physics, Anurag Group of Institutions, Hyderabad 500088, India
4Department of Physics, Sri Venkateswara College of Engineering, Kodavalur 524316, India
5Department of Physics, S.B.V.R. Degree College, Badvel-516227, Andhra Pradesh, India
* Corresponding author: (+91) 9502702970; [email protected]; [email protected]
Abstract
The sol-gel synthesized LiGd(1-x)(WO4)3: xEu3+
(0 ≤ x ≤ 5.0%) nanophosphors were
characterized through thermal, structural and photoluminescence studies. They crystallized into
monoclinic structure and well consistent with PCPDF No. 49-0962. The emission analysis was
carried out at different excitations monitoring the emission at 615 nm corresponding to the Eu3+
: 5D0
→ 7F2 transition. Upon near ultraviolet excitation, the studied materials exhibit
5D0 →
7FJ (J = 0 – 4)
transitions [1,2]. Among the observed emission transitions, the Eu3+
: 5D0 →
7F2 transition has
maximum intensity causing intense and proficient red luminescence from the LiGd(1-x)(WO4)3:
xEu3+
nanophosphors. The concentration of Eu3+
ions was optimized to be 2.0 mol% for efficient
luminescence. The luminescence decay of Eu3+
: 5D0 emission state was recorded monitoring the
excitation and emission wavelengths at 395 nm and 615 nm, respectively. The lifetime of Eu3+
: 5D0
emission state decrease gradually with increase of concentration of Eu3+
ions and it has been
assigned to the energy transfer among the excited Eu3+
ions at higher concentrations. The colour
purity of emitted luminescence was analysized by evaluating the chromaticity coordinate using the
emission spectral profiles. The LiGd(WO4)3: Eu3+
nanophosphors containing 2.0 mol% of Eu3+
ions
are potential for photonic applications.
Keywords:Lithium tungstate; Nanophosphors; Sol-gel technique; Luminescence; Photonic
applications
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ICMM-2019 56 Book of Abstracts
ICMM: 122 | Impact of annealing temperature on resonance field, line-width
andanisotropy in Ni0.65Zn0.35Fe2O4
M. Lakshminadh1, M. Murugan2*, GSVRK Choudary3, M C Verma4 1 Department of Physics, MLR Institute of technology, Dindigul, Secunderabad 500043,
India 2Department of Physics, Government of Arts College, Tiruchirappalli, 620022, India
3Department of Physics, Bhavan’s Vivekananda College of Science, Humanities and
Commerce, Sainikpuri, Secunderabad 500094, India 4Department of Physics, GIT, GITAM University, Vishakhapatnam, Andhra Pradesh,
530045, India.
*Corresponding author. Mobile: (+91) 9940788327; E-mail: [email protected]
Abstract
Influence of annealing temperature on resonance field, ESR line width, magnetic anisotropy,
resonance frequency and magnetic properties was studied for Ni0.65Zn0.35Fe2O4. Samples with
selected composition were synthesized by sol-gel method using PVA as chelating agent and annealed
at different temperatures from 400oC-1100
oC. Saturation magnetization gradually increases up to 74
emu/gm(1030oC) and then decreases with further rise in annealing temperature. Highest coercivity
was obtained at 750oC and decreases for higher annealing temperature. Lowest Mr/Ms ratio of 0.06
at 1030oC indicates the dependence of magneto static nature in domains with annealing temperature.
Steady rise in anisotropy and resonant frequency was observed with increasing annealing
temperature with a marginal drop at higher annealing temperature.Knowledge of dependence of
magnetic properties, anisotropy, line width, resonance field on annealing temperature allows us to
tailor material for antennas, multilevel chip inductor applications at high frequencies.
Keywords: Crystallite size, magnetization, anisotropy, electron spin resonance, Mossbauer
spectroscopy
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photograph of
the presenting
author.
ICMM-2019 57 Book of Abstracts
ICMM: 123 | Optimized Energy Consumption algorithm using IoT for Indoor
Environment
V.Usha Devi1, Dr.S.V.S. Prasad2
1&2Department of Electronics and Communication Engineering, MLR Institute of
Technology, Hyderabad-500043, India
*Corresponding author. Mobile: (+91) 9642175846;
E-mail:[email protected]
Abstract
The Internet of things (IoT) is a connection of multiple devices working under the same
environmental conditions. This is done with the help of temperature sensors, gas sensors,
microcontrollers and alternate objects which can be easily charged. As a result, IoT development
affects the need for renewable energy and efficiencies in energy consumption. In this paper, I tried
to bring out an optimized energy efficient system which can be helpful in improving the system
performance and can be easily adapted to its surroundings.
Keywords: Internet of Things; renewable energy; Energy utilization; Smart homes; Renewable
resources
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the presenting
author.
ICMM-2019 58 Book of Abstracts
ICMM: 124 | IOT in Agriculture Irregation and Monitoring
M Vinod
MLRIT, Hyderabad,501401, Telangana
Mobile: (+91) 9908100646; E-mail:[email protected]
Abstract
An automated irrigation system mainly considered to optimize the usage of water on agriculture
because of climatic situation which leads to lack of rains. The farmers running on the agriculture
fields are needy of rain, bore wells as well as rivers. Suppose if the farm land has pumps for
irrigation it also desired someone to on/off the pumps. conventional water quality measurement is
through by taking samples that does not bring the real time data. In this, the gateway sensor is used to
handle sensor information and helps to broadcast data to web application using internet of things.
Wireless and soil moisture sensor is programmed with microcontroller based gateway which is used
to manage and maintain the flow and quality of water. By using an automated system water is saved
of up to 92% and manufactures a good yield compared with older irrigation systems. The system has
a spread wireless set of connections of soil-moisture along with temperature sensors positioned in the
root region of the plants. In addition, a gateway unit handles sensor information and transmits data to
a web application. All the system will be group using ARM and GPRS module using IoT. The
ESP8266 is a little unit allows microcontrollers to tie with a Wi-Fi network and build easy TCP/IP
connections by means of Hayes-style instructions. The plan of our system is to supervise the position
of sensor which can be monitored through cloud web page ,throughout the microcontroller. The web-
server is coupled to internet. This page contains all the information regarding the status of the sensor.
Purpose of this scheme is to examine and control dissimilar parameters in agriculture &engineering
field and also to find out the harmful area such as chemical or nuclear place. As we are using cloud
there is no data loss, it is secured and its always-on availability
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photoraph
of the
presenting
author.
ICMM-2019 59 Book of Abstracts
ICMM: 125 | Automatic track fault and object detection inrailway
infrastructure
K. Gangalatha, Dr.B.Sridhar,S V S Prasad
MLR Institute of Technology, Dundigal, Hyderebad, 500043, India
K.Gangalatha. Mobile: (+91) 8500974168; E-mail:[email protected]
Abstract
The assignment is to accord the multi sensor railroad clue geometry searching overframework.
Railroad Bridge abuse cachet is arrested by the sensor and move through limitedmodules. For simple
belief and with beneath adjourn the abstracts can be forward to thespecialist. To accumulate abroad
from blow and to avert the individuals. The cardboardproposes designing of able-bodied railway able
apprehension arrangement (RRCDS)application IR sensor accumulation for railway clue geometry
assay arrangement by auditionthe cracks on railway tracks. Most of the accidents in the alternation
are acquired due tocracks in the railway tracks, which cannot be calmly identified. The chiral assay
of railwayclue took added time and animal fatigue. The proposed arrangement introduces
Bluetoothbased technology, to anticipate the alternation accident. Two IR sensors are installed
atforeground end of the assay apprentice which monitors the clue and gives the cachet toArduino
controller. If there is able begin it anon sends the area of able via Bluetooth toadaptable phone. The
proposed torn abuse apprehension arrangement automatically detectsthe adulterated railway clue
after any animal interference. There are abounding advantageswith the proposed arrangement if
compared to the acceptable detective techniques. Theadvantages cover beneath cost, low ability
consumption, and beneath assay time and aswellfacilitate bigger assurance standards for abuse
advance and accommodate able testinginfrastructure. The Indian Railways has one of the better
railway networks in the world, crises-bridge over 1,15,000 km in distance, all over India. However,
with absorption to believabilityand commuter assurance Indian Railways is not up to all-around
standards. Among addedfactors, cracks developed on the balustrade due to absence of appropriate
apprehension andthe associated aliment affectation austere questions on the aegis of operation of
abusetransport.
Keywords: GSM, GPS Module,DC-Motor.
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presenting
author.
ICMM-2019 60 Book of Abstracts
ICMM: 126 | Soldier Tracking And Health Monitoring System
Badrinath Pulimamidi, D. Naresh Kumar, S.Venkata Surya Prasad MLR Institute of Technology, Dundigal, Hyderabad, 500043, India
MLR Institute of Technology, Dundigal, Hyderabad, 500043, India
MLR Institute of Technology, Dundigal, Hyderabad, 500043, India
Badrinath Pulimamidi. Mobile: (+91) 8801660371; Email: [email protected]
Abstract
In today’s world rival combat is a crucial aspect in any nation’s security. The countrywide security
mainly depends on soldiery, naval, air force and a vibrant role is played by soldiers. This system will
be beneficial for soldiers, who encompass in undertakings or in special actions. In rival terrain, our
territorial army not only have to deal with the physical risk, but also with load and exhaustion caused
by prolonged processes or even due to lack of doze. So, for their security persistence we need a tool
to remote soldier performance and health monitoring. And, in this project a device is instigated by
means of biosensors for health nursing purpose. This system permits GPS (Global positioning
systems) tracking of these soldiers. It is probable by M-Health. It can be well-defined as mobile
computing, communication technologies, medical sensors for health maintenance. In this system,
smart sensors are attached to the body of soldiers for detection and prevention. This is applied with a
particular server system for broad agility. This server will furnish the affinity to the server at the base
station with the use of wireless assembly. Individual soldier also has a GSM (Global system for
Mobile communication) module that permits to interconnect with the base station if any wounds
noticed. As quick as any other soldier cross the rival borders it is tremendously tough for the soldiery
base station to distinguish the particular or predicted location as well as the health condition of all the
soldiers. In our project we have come up with an idea of tracking soldier and this tool is implemented
by means of biosensors for health monitoring purpose as well as to stretch the condition status of the
soldier all through the war for their safety.
Keywords: GPS- Global Positioning System, GSM- Global System for Mobile Communication, M-
Health – Mobile Health
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the presenting
author.
ICMM-2019 61 Book of Abstracts
ICMM: 127 | Synthesis and Characterization of highly Fluorescent
Donar/AcceptorSubstituted Imidazole Derivative for Solar Cell Application Shashikant Walki,a Lohit Naik,*b Ravindra M.K,a Hemantkumar M.S,*c
YoganandaK.C,d Soniya Naik,f Malimath G.H,*b Prashanth S.A,e and
Mahadevan. K.M.*a aDepartment of Chemistry, Kuvempu University, P. G. Centre Kadur, Shivamoga,
Karnataka, India. bUG& PG Department of Physics, Karnataka Science College, Dharwad, Karnataka,
India. cDepartment of Chemistry, Karnataka Science College, Dharwad, Karnataka, India.
dDepartment of Nanotechonology, Visvesvaraya centre for nanoscience and technology, VTU Banglore,
Karnataka, India. eDepartment of Chemistry, SVM Arts, Science and Commerce College, Ilkal, Karnataka, India.
fDepartment of Chemistry, Karnataka University, Dharwad, Karnataka, India.
*Corresponding author. Mobile: (+91) 9945519340; E-mail:[email protected]
Abstract
In the present work, we have synthesised donors/acceptor substituted derivative of
imidazole 4-(1-(3-chloro-4-nitrophenyl)-4,5-diphenyl-1H-imidazol-2-yl)benzoic acid (CNI) via one-
pot synthetic method and has been characterized by spectroscopic methods such as1H-NMR, IR,
SEM and EDX. The photophysical properties like, solvatochromic shift and quantum yield were
estimated. Energy band gap of the CNI dye was calculated in various solvents using theoretical and
experimental methods. Further, photosensitization of TiO2 nanoparticles from CNI dye has been
investigated using absorption, steady state and time resolved fluorescence methods. The increase in
absorbance and decrease in fluorescence spectra with different concentrations of TiO2 nanoparticles
confirmed the possibility of interactions between dye and TiO2nanoparticles. Rehm-Weller relation
suggests that, decrease in fluorescence of CNI dye was due to photo-induced electron transfer
process and the Stern-Volmer studies suggest that, the fluorescence quenching mechanism was due
to combined dynamic and static quenching process. The photo-induced electron transfer process has
been used in solar energy harvesting applications by fabricating CNI dye sensitized solar cell.
Photovoltaic energy conversion efficiency and fill factor of the CNI dye were found to be 1.85% and
0.57 respectively.
Keywords:Imidazoles derivatives; Fluorescence quenching; Photo induced Electron transfer; Dye
sensitized solar cell (DSSC).
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photograph of
thev
presenting
author.
ICMM-2019 62 Book of Abstracts
ICMM: 128 | Design of high sensitive alcohol sensor with vehicle ignition
disabling system
S. Harivardhagini
1CVR College of Engineering, Ibrahimpatnam, 501510,India
Mobile: (+91) 9985147962; E-mail: [email protected]
Abstract
Driving while either intoxicated or drunk is dangerous and drivers with high blood alcohol
content or concentration (BAC) are at greatly increased risk of car accidents, highway injuries and
vehicular deaths. Every single injury and death caused by drunk driving is totally preventable.
Although the proportion of crashes that are alcohol-related has dropped dramatically in recent
decades, there are still far too many such preventable accidents. Unfortunately, despite great
progress, alcohol-impaired driving remains a serious national problem that tragically affects many
victims annually. At present drunken drivers have increased enormously and so is the deaths due to
drunken drivers. The main reason for driving drunk is that the police are not able to check every car
and even if they catch any one the police can be easily bribed. So, there is a need for an effective
system to check drunken drivers.
In this paper an alcohol detection system is designed and implemented. Apart from sensing
the alcohol, the ignition of the fuel is regulated by a sensor circuit. The sensor circuit is used to detect
whether alcohol was consumed by the driver recently. This design also consists of sensor which is
used to check whether alcohol is consumed while driving. The effects of drinking and driving are
always risky and can often be lethal. A prototype is also designed which detects the amount of
alcohol taken by the person. When the amount of the alcohol is reached to a threshold limit
(Dangerous/maximum) it automatically turns off the combustion engine of the vehicle with buzzer
indication and simultaneously with a LED indication.
Keywords: High blood alcohol content or concentration (BAC); alcohol detection system; ignition
interlock system; alcohol sensor
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presentin
g author.
ICMM-2019 63 Book of Abstracts
ICMM 132 | Investigation on the effect of Ni codoping on the structural and
optical properties of transparent Al:ZnO thinfilms
Srinatha N1, Raghu P2, H M Mahesh3, Suresh Kumar M R1, Basavaraj
Angadi4,* 1Dept. of Physics, RV Institute of Technology and Management, Bangalore, 560076,
India 1Department of Electronics, GFGC, Kuvempunagar, Mysuru, India 570023, India
3 Department of Electronics, Bangalore University, Bangalore, India 560 056, India 4 Department of Physics, Bangalore University, Bangalore, India 560 056, India
*Corresponding author. Mobile: (+91) 9972025110; E-mail: [email protected]
Abstract
There is an ever increased interest on ZnO due to its remarkable properties, such as, wide band gap,
high transparency in the visible region, etc and its possibility in the use of the combination of spin
and charge degrees of electrons when doped with transition-metal in ZnO, which open up the new
field of spintronics. It is also reported that, Al doped ZnO is used as transparent conductor material
due to its electrical resistivity, transparency in the visible region and non-toxicity [1-2]. Further, the
optical properties and magnetic properties can be tuned by co-doping by transition metals, which find
potential applications in opto-magnetic devices [1]. Therefore in this work, Ni co-doped Al:ZnO thin
films were prepared using spin coating technique. As a preliminary work, effect of co-doping (Ni)
concentration on the structural and optical properties of spin coated Al:ZnO thinfilms were
investigated. PXRD patterns exhibits preferred orientation along (002) plane i.e. c-axis orientation
along with few crystalline peaks of feeble intensity. The unit cell volume (lattice parameters)
increases with Ni concentration. Within the detection limit of PXRD, no traces of impurities were
observed. PXRD results show the substitution of Ni at Zn site in the host matrix without leading to
the formation of impurity phase. Optical properties were studied by recording optical absorbance and
transmittance spectra in the wavelength range 300 - 1000 nm using UV-visible spectrophotometer.
The results show that the prepared films exhibits transparency of ~ 90 % in the visible region. Also,
the band gap energy decreases with increasing Ni (codopant) concentration in Al:ZnO thinfilms. The
structural and optical results confirms that the deposited films are homogeneous, single phase and
transparent, hence suggests the films are the potential candidates for transparent conducting oxide
applications.
Keywords: Ni co-doped Al:ZnO thinfilms; electro-optic; Transparent Conducting Oxides.
Acknowledgements Authors are thankful to the DST-FIST for providing XRD facilities at Department of Physics,
Bangalore University, Bangalore.
Reference 1. J. W. Lee, K. N. Hui, K. S. Hui, Y. R. Cho, H. H. Chun, Applied Surface Science, 293, 55-61,
2014.
2. N. Srinatha, P. Raghu, H. M. Mahesh, B. Angadi, Journal of Alloys and Compounds, 722, 888-
895, 2017.
ICMM-2019 64 Book of Abstracts
ICMM: 133 | Effect of Sb3+ and Y3+ ions on optical and spectroscopic
properties of holmium oxide doped calcio borate glasses
M. Gopi Krishna1,2, Ravi Kumar Guntu1, *, N.V. Prasad2 1Department of Physics, Sreenidhi Institute of Science & Technology, JNTUH, India.
2Department of Physics, University College of Science, OU, Hyderabad, India.
Mobile: (+91) 9966283320; E-mail:[email protected]
Abstract
The glasses of the composition 30 CaF2 – (10-x) Sb2O3 – x Y2O3 – 60 B2O3: 1 Ho2O3 (Where
x = 0, 5 and 10 mol%) are prepared. Prepared samples characterized by elastic, TL, UV and PL
technique. The values of density ( = 2327 Kg/m3), elastic modulus (Y= 21.98 GPa) and micro
hardness (H= 2.138 GPa) suggest that the sample Sb5Y5 exhibiting largest mechanical strength
(strongly interlinked covalent structure). The TL reports of the sample Sb5Y5 exhibiting good shape
symmetry factor (𝒖 = 0.524) and low AE’s (E𝛕 = 1.201, E𝛅 = 1.223 & E𝛚 = 1.239) under 30 min of
UV - irradiation might be good TL asset.Judd-Ofelt parameters are additionally projected. Which are
found to be best (Ω2 = 10.56 x 10-22
cm2, Ω4 = 2.47 x 10
-22cm
2 and Ω6 = 2.88 x 10
-22cm
2) for the
sample Sb5Y5 might be good optical asset. The radiative evolutions, corresponding to the emissive
transition 5S2 →
5I8assessed by PL technique. The evaluations are found to be best (At = 3229s
-1, τrad
= 181μs, β = 96.1 %) for the sample Sb5Y5 might be good radiative resource.
Keywords: Micro hard ness; trap depth parameters; J-O parameters:
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the presenting
author.
ICMM-2019 65 Book of Abstracts
ICMM: 134 | The characterization of Nd doped BiFeO3
multiferroicpolycrystalline materials
J. Ramesha, S. S. K. Reddyb, M. Sreenath Reddyc, Ch. Gopal Reddya, P.
Yadagiri Reddya, K. Rama Reddya, V. Raghavendra Reddyd aDepartment of Physics, Osmania University, Hyderabad, Telangana, India
bDepartment of Physics, Chaitanya Bharathi Institute of Technology, Gandipet,
Hyderabad - 500075, India cDepartment of Physics, Nizam College, Basheerbagh, Hyderabad, India
dUGC DAE Consortium for Scientific Research, University Campus, Khandwa Road,
Indore, Madhya Pradesh 452001, India
*Corresponding author. Mobile: (+91)9441231003; E-mail:[email protected]
Abstract
The present work reports the preparation and study of multiferroic Nd doped BiFeO3(BFO)
polycrystalline samples. The samples are prepared with sol-gel method. The x-ray diffraction
measurements confirm the orthorhombic structure with Pnma space-group. Small amount of
secondary phase is also observed. SEM and EDX have been used to study the surface morphology
and weight percentage of the elements. The room temperature leakage current density (J-E)
measurements indicate grain boundary limited conduction and Ohmic conduction mechanisms under
lower and higher field regions, respectively. Ferroelectric (P-E& PUND) and Mössbauer
spectroscopy measurements are also carried out and are discussed in the present paper.
Keywords:Sol-gel method, XRD, P-E Loop and Mössbauer spectroscopy
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the presenting
author.
ICMM-2019 66 Book of Abstracts
ICMM: 137 | Photoluminescence Studies of Eu3+ and Tb3+ Activated
Ba2SiO4Phosphor
K.Srikanth* and M.Srinivas Department of Physics, Osmania University, Hyderabad-500 007
Telangana state, India
*Corresponding author. Mobile: +919951930991; E-mail: [email protected]
Abstract
Eu3+
and Tb3+
activated Ba2SiO4 phosphors have been synthesized by using high temperature
conventional solid state reaction method. All synthesized phosphors are characterized by X-ray
Diffraction (XRD), Energy Dispersive Spectroscopy (EDS), Scanning Electron Microscope (SEM),
Fourier-Transform Infrared Spectroscopy (FTIR) and Photoluminescence Techniques (PL). The X-
ray diffraction patterns of the sample are indexed as orthorhombic structure. Elements are present in
the composition are Ba, Si, O, Eu and Tb as confirmed from EDS. In the photoluminescence
studies,Ba2SiO4:Eu3+
phosphor exhibits strong emission peak at 611 nm and Ba2SiO4:Tb3+
phosphor
exhibits high intense emission peak at 546 nm under UV excitations. These peaks may be attributed
to the transition 5D0 →
7F2 of Eu
3+ ions and transition
5D4 →
7F5 of Tb
3+ ions.The intensity of intense
peaksare increasing with Eu3+
concentration increases as well asthe high intense emission peak is
moderated from blue region to green region with Tb3+
concentration increases. Based on these
results, these phosphors may be useful as red and green phosphors in the lamp as well as displays.
Keywords: Barium Orthosilicate Phosphor,X-ray Powder Diffraction (XRD), Energy Dispersive
Spectroscopy (EDS) and Photoluminescence (PL).
Acknowledgements: We would like acknowledge to DST-SERB, New Delhi and OU-DST-PURSE-
II PROGRAMME for providing financial assistance to carry out this work and also thanks to Head,
Department of Physics, Osmania University, Hyderabad for providing research facilities.
ICMM-2019 67 Book of Abstracts
ICMM: 141 | Gamma Ray Induced, Structural and Electrical Properties of
Nickel Ferrite Nanoparticles
Pooja Khedekar*, Shubhada Thorat, Mangesh Khedkar, Swapnil Jadhav, K.
M. Jadhav
1Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad
*Corresponding author. Mobile: (+91) 9561552676; E-mail: [email protected]
Abstract
Herein, we report the structural and electrical properties of nickel ferrite nanoparticles induced by
gamma ray irradiation. Nickel ferrite NiFe2O4nanoparticles were synthesized in nanocrystalline form
using sol-gel auto combustion route. The obtained nanoparticles were sintered at 500ºC for 6 h and
used for structural and electrical characterizations. These characterizations were made before and
after gamma irradiation. Single phase formation and nanocrystalline nature was confirmed through
X-ray diffraction analysis. The intensity, crystallite size and other structural parameters were
changed after gamma irradiation. The electrical properties such as DC electrical resistivity were
measured using two probe technique before and after gamma irradiation. The results of DC
resistivity measurements suggest that nickel ferrite nanoparticles exhibit semiconducting behaviour
obeying the Arrhenius relation. The observed changes in structural and electrical properties after
gamma irradiation may be attributed to creation of defects.
Keywords:Nickel ferrite nanoparticles, sol-gel auto combustion, XRD, Gamma irradiation.
Acknowledgements One of the authors Pooja Khedekar is thankful to Government Institute of Science, Aurangabad for
gamma radiation facility.
ICMM-2019 68 Book of Abstracts
ICMM: 143 | Structural and photoluminescence of Tb3+ Ba3La2(BO3)4
M. Peddaiah1, P. Ankoji2, Dr. B. Hemalatha Rudramadevi* 1Department of Physics, Sri Venkateswara University, Tirupati-517502, A.P, India.
2Department of Physics, Sri Venkateswara University, Tirupati-517502, A.P, India.
*Corresponding author. E-mail: [email protected]
Abstract
A green light emission from rare earth Tb3+
doped at various concentrations of 0.02, 0.04,
0.06, 0.08 and 0.1 mol% in barium lanthanum borate [Ba3La2(BO3)4] novel phosphor have been
synthesized by conventional solid state reaction method. The crystal structure and optical properties
of the prepared samples were characterized by X-Ray Diffraction (XRD), FTIR and
Photoluminescence (PL) spectroscopy. From the XRD investigations it was confirmed that an
orthorhombic crystalline structure of host Ba3La2(BO3)4 and Tb3+
doped Ba3La2(BO3)4 phosphors.
From FTIR spectra, the energy absorption bondings between B-O and B-O-B were identified. The
Photoluminescence emission and excitation spectra of Tb3+
doped Ba3La2(BO3)4 were recorded by
spectrofluorometer analysis. We observed that, by the increasing of rare-earth ion Tb3+
concentration
in the prepared Ba3La2(BO3)4 phosphor samples, the photo luminescent intensities were much
improved and were reported. For the emission spectra of Ba3La2(BO3)4:xTb3+
(x=0.02,0.04, 0.06,
0.08 and 0.1 mol%) phosphors, four emission peaks were observed at 487 nm, 545 nm, 586 and 622
nm with their corresponding electronic transitions of 5D4 →
7F6,
5D4 →
7F5,
5D4 →
7F4 and
5D4 →
7F3at an UV excitation of 271 nm respectively. Among these transitions, a prominent green emission
with high intensity of wavelength at 545 nm corresponding to 5D4 →
7F5 transition was observed.
The CIE color coordinates of the emission of Tb3+
doped Ba3La2(BO3)4 phosphor were x = 0.2765
and y = 0.6948, which is located in the green region and hence this phosphor has a potential
applications in green light emitting devices.
Keywords: Phosphor sample, XRD, FTIR, photoluminescence, colour chromaticity.
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presenting
author.
ICMM-2019 69 Book of Abstracts
ICMM: 147 | Effect of sintering temperature on the structural and electrical
parameters of coblat ferrite (CoFe2O4)
Sumalatha M1, Shravan kumar Reddy S4, Sreenath Reddy M2, a, Suresh
Sripada3, Venkat Reddy P1, Gopal Reddy Ch2,Yadagiri Reddy P2 and
Raghavendra Reddy V5
1 Sreenidhi Institute of Science and Technology, Hyderabad-501301
2, Department of Physics, Osmania University Hyderanbad-500007
3 JNTUH College of Engineering, Nachupally, Jagityal-505501
4Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad-500075
5 UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indoor-452001
*Corresponding author. Mobile: (+91) 9849936509; E-mail:[email protected]
Abstract
Ferrites are familiar for their ferrimagnetic properties and exhibits significant amount of magneto-electric
coupling in composite form. The effect of sintering temperature on structural and electrical properties of
inverse spinel structured cobalt ferrite (CoFe2O4) is presented in this paper. The samples (CoFe2O4) were
synthesized through well known sol-gel method and sintered at different temperatures 1000oC, 1300
oC and
1400oC for 6 hours. Rietveld refinement of X-ray diffraction (XRD) patterns confirms the phase purity of the
samples and found that samples were formed inverse spinel cubic structure with space group fd3min single
phase. There is a noticeable decrease in lattice parameters (a, b and c) and volume with the increase of
sintering temperature from 1000oC to 1400
oC. Micro structure of the samples was understood through SEM
images. P-E loop and leakage current density measurement results were corroborated with the microstructure
of samples.
Keywords: Sol-Gel; Rietveld refinement; sintering temperature.
Acknowledgements One of the authors Mrs. M. Sumalatha, is thankful to DST for providing the financial assistance through
PURSE project.
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author.
ICMM-2019 70 Book of Abstracts
0 1000 2000 3000 4000 5000
0.0
0.5
1.0
1.5
2.0
360K
355K
350K
345K
340K
335K
M(e
mu
/g)
H (Oesterd)
LSMO-c400
330K
ICMM: 148 | Magnetocaloric response of LSMO manganite
G. Lalitha1, Lanka Satyanarayana2 K. Jayanthi2 and Sunkara. V.
Manorama2*
1Department of Physics, Telangana University, Nizamabad 503322, India
2CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
*Corresponding author. Mobile: (+91) 9866061347; E-mail:[email protected]
Abstract
A manganite with compositional formula La0.67Sr0.33MnO3 has been successfully synthesized
using novel combustion technique at 400oC for application in magnetic refrigeration. Structural
characterisation of the as-prepared sample by X-ray diffraction technique revealed the formation of
single-phase Rhombohedral structure with R C space group. The crystallite size of the sample was
calculated using Scherrer formula and was found to be 18.02nm. The microstructure of the sample
was studied using FESEM measurements and the grain size was found to be <100nm with rod-like
morphology. Further, X-ray photoelectron spectroscopy (XPS) studies established the presence of
both Mn3+
and Mn4+
states which gives rise to Jahn-Teller effect to explain ferromagnetic behaviour.
Fromvibrating sample magnetometry (VSM)studies in the 300-400K range at magnetic field of 100
Oe, the ferro to paramagnetic transition temperature (TC) was observed around 345K.The
magnetocaloric response of this material,from variation of magnetisation with applied magnetic field
below and above the transition temperature in the range 330-360K with a step of 5K was studied
reveal the following magnetic isotherms.
Using these isotherms Arrott plot (H/M versus M2) the magnetic entropies were deduced.
Relative cooling power, RCP has been estimated using maximum magnetic entropy and found to be
comparable with earlier reports.
Keywords: Magnetization; magnetic isotherms; manganites; magneto caloric effect (MCE).
Acknowledgements: GL thanks DST SERB for funding the project TAR/2018/000366 and all
authors are grateful to Director CSIR-IICT for the support.
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author.
ICMM-2019 71 Book of Abstracts
ICMM: 149 | Design and Development of a Low-Cost Magnetic
InductionSpectroscopy (MIS) Instrumentation
Tushar Kanti Bera1*, Toushik Maiti1, Suraj Prasad Barnwal1
1National Institute of Technology Durgapur (NITDgp), Durgapur, WB 713209, India
*Corresponding author. Mobile: (+919448853308); E-mail: [email protected]
Abstract
Magnetic Induction Spectroscopy (MIS) is a nondestructive testing technique that could be applied in
different areas of engineering, technology, and other applied sciences. The MIS system consists of
three main parts: electrical signal generation instrumentation (ESGI), electromagnetic interface
(EMI) system and object under test (OUT). The MIS technique is found promising for different fields
of applications such as biomedical engineering, industrial engineering, defence and securityand so
on, but the design of an ESGI needs to be studied in detail. As the MIS system is a non-contact
material characterization system, the signal to noise ratio (SNR) of the system is found to be reduced
for unwanted interference. Therefore, for an MIS system, the design of the ESGI is very crucial. The
works presenting the detail design aspects of the ESGI of an MIS system are still required to be
explored. This paper has presented the design, development, and testing of a low-cost MIS
instrumentation. Along with the mathematical modelthe electromagnetic system, MIS
instrumentation is developed with two windings of suitable turns using enameled copper wires of
required cross-sectional areas. The variable voltage multifrequency function generator developed to
generate the magnetic field lines is used to excite the primary coil. The voltage developed at the
secondary winding due to the Faraday’s electromagnetic induction principle is acquired to sense the
permeability of the different materials placed as the core of the electromagnetic interface. The SNR
has been studied for different amounts of voltages and frequencies of the electrical excitation applied
at primary winding. The advantages and limitations of the system have been described along with the
future work and possible applications of the system.
Keywords: Magnetic Induction Spectroscopy (MIS); Non-destructive testing (NDT); MIS
instrumentation, biological tissue characterization, signal to noise ratio (SNR).
Acknowledgements Research support has been provided by NIT Durgapur (NITDgp), West Bengal 713209, India.
ICMM-2019 72 Book of Abstracts
ICMM: 151 | Understanding the Role of Structure on the Sensing
Performance of Nanocrystalline WO3 Based Chemoresistive Sensors
Supraja Sankeshi, N.Snehita Chowdary, Pooja Bajaj and Manorama V Sunkara* Nanomaterials Laboratory, CSIR-Indian Institute of Chemical Technology,
Hyderabad-500 007.
*Corresponding author: Mobile-(91)9866061347, Email- [email protected]
Abstract
Semiconducting oxides have been extensively studied for application as gas sensing materials
because of their ability to change their electrical resistance in response to the concentration of target
gas in its contact. Tungsten trioxide (WO3) belonging to this class of materials has other interesting
features such as diverse morphology and crystalline structures that could be effectively tailored to
design a material for efficient gas sensing. In this work, a facile hydrothermal synthesis method using
sodium tungstate dihydrate as the precursor is described. In the first stage we have been successful in
controlling the phase and morphology of the nanocrystalline WO3 and the role of synthesis
parameters like temperature and time to obtain a highly sensitive gas sensing material. Test gas
studies were performed on H2, Ethanol, NH3 etc to understand the role of microstructure on the gas
sensing performance. The gas sensing studies establish that the flake like morphology of the low
temperature (100oC) synthesized orthorhombic phase shows a much better gas sensing performance
that could be primarily attributed to the small particle size and thus larger surface area. X-ray powder
diffraction (XRD) confirms the phase of the WO3 (Figure 1) and Field Emission Scanning Electron
Microscopy (FESEM) establish the orthorhombic crystal structure with flake-like morphology of
WO3 (Figure 2). Incorporation of ‘Pd’ into the synthesized WO3 led to an improvement in gas
sensing along with a lower operating temperature. Work is in progress to tailor the properties and
develop a selective sensor for ethylene detection.
Acknowledgements: All the authors are grateful to Mrs.Y.Swarnalatha and B.Arun Kumar for their
relentless analytical support.
ICMM-2019 73 Book of Abstracts
ICMM: 153 | Title of the Paper A.C Conductivity of Cobalt Substituted in
CopperFerrites by DSCM
Ch.Venkateshwarlu1, Guguloth Vinod2, U.Dhasharatha2, P.Ramesh2 and
LaxmanNaik. J*
1 Department of Physics, University College of Science, Saidabad, Osmania University,
Hyderabad 2Research scholars, Dept. of Physics, Osmania University, Hyderabad, Telangana
*Corresponding author. E-mail: [email protected]
Abstract
Samples of the type Cu1-XCox Fe2O4 with x = 0.2, 0.4, 0.6 were prepared by DSCM i.e
double sintering ceramic method. A.C conductivity measurements were carried out at different
frequencies up to 50 Hz -05MHz at various temperatures from room temperature to about 673 K. The
A.C conductivity was measured by four probe method using vanyekerr electronics high precession
imp -dense analyzer (6500) model. The results showed that the conductivity increases with both
temperature and frequency, then the activation energy in the paramagnetic region is reveal higher
than that in the ferromagnetic region. At high temperatures the conductivity becomes frequency
independent. So we conclude that the conductivity in these ferrites consists of two kinds of
conduction mechanisms.
Keywords: Copper, Cobalt, DSCM and A.C conductivity
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of the
presenting
author.
ICMM-2019 74 Book of Abstracts
ICMM 156 | Spectroscopic studies on Samarium doped Sodium-Zinc-Borate
glasses
S. Hemalatha1, Madhu. A2, Madihally Nagaraja * 1, *
SSIT, Tumkuru, 572 105, India 2Bangalore university, Bengaluru, 560 056, India
*Corresponding author. Mobile: (+91) 9972341449;E-mail:[email protected]
Abstract
Samarium rare earth doped Sodium-Zinc-Borate glasses were synthesized using conventional
melt quenching technique. All formed samples were characterized by different spectroscopic
techniques. For all prepared samples XRD spectrum was recorded and it confirms the glassy nature
of the as prepared samples. Absorption spectra of samarium doped glasses revealed 13 transitions
from ground state: 6H5/2 →
4D7/2,
4D3/2,
6P7/2,
6P3/2,
4F5/2,
4I9/2,
6F11/2,
6F9/2,
6F7/2,
6F5/2,
6P3/2,
6F1/2 and
6H13/2. The prepared glasses have analysed with absorption spectra and optical band gap, Urbach
energies have been estimated. Physical properties like refractive index, density and other optical
parameters were evaluated and tabulated. The refractive index is nearly 1.67 for all the samples
which is suitable for photonic applications.
Keywords: Glasses, Spectroscopic studies, optical band gap, refractive index, photonic
applications
Acknowledgements Authors are thankful to the DST-FIST for providing XRD facility at Department of Physics,
Bangalore University, Bengaluru.
Reference
1. K. Linganna, Ch.Basavapoornima, C.K.Jayasankar, Optics Communications, 344, 100-
105, 2015.
2. F. Zaman, J. Kaewkhao, G. Rooh, N. Srisittipokakun, H.J. Kim, J. Alloys Compd. 676, 275
-285,2016.
3. D.D. Ramteke, A. Balakrishna, V. Kumar, H.C. Swart, Opt. Mater. 64 , 171–178, 2017.
4. F. Wang, B.J. Chen, H. Lin, E.Y.B. Pun, J. Quant. Spectrosc. Radiat.Transf. 147, 63–70,
2014.
ICMM-2019 75 Book of Abstracts
ICMM: 157 | Electrical properties of Neodymium doped
Bismuthmultifunctional materials
D.Ravinder1*, G.Naveena2
1Department of Physics,Osmania University, Hyderabad- 500007, India
2Department of Physics, Osmania University, Hyderabad- 500007, India
*Corresponding author. Mobile: (+91) 9246162228;
E-mail: [email protected]
Abstract
Nd substituted bismuth nano crystalline multifunctional materials were prepared by citrate gel
autocombution technique. The structural characterization was carried out by XRD and SEM.
Electrical properties such are electrical conductivity and dielectric properties have been measured.
Plots of electrical conductivity versus temperature increases with increasing temperature and shown a
transition near Curie temperature. Dielectric properties such are dielectric constant and dielectric loss
tangent have been measured from 20Hz to 2 MHz at room temperature. Plots of dielectric constant
versus frequency show a normal dielectric behaviour of multifunctional materials.
The observed results can be explained on the basis of conduction mechanism and
Max-Well Wagnar polarization.
Keywords: Multifunctional Materials; Citrate Gel Auto combustion Technique; Electrical
conductivity; Dielectric constant; Polarization
Acknowledgements The authors are very grateful to DST-SERB, New Delhi for financial support.
Please insert
photograph
of the
presenting
author.
ICMM-2019 76 Book of Abstracts
ICMM: 159 | Effect of Copper Concentration on Ethanol Sensing Performance
of Cu- stilbite Thick Film Sensor Megha Mahabole1*, Madhuri Lakhane2, Kishori Naik1, Pankaj
Waghmare3, VikasKutte4, Rajendra Khairnar1, Kashinath Bogle1
1Swami Ramanand Teerth Marathwada University, Nanded-431606, India
2St. John College of Engineering and Management, Palghar-401404 India
3 Solapur University, Solapur-413001, India
4Yeshwant College, Nanded -431606, India
*Corresponding author. Mobile: (+91) 9421850549; E-mail:[email protected]
Abstract
The present study deals with natural stilbite (Ca-stilbite) collected from the queries near Pune,
Maharashtra, India. Ion exchange process is carried out for partial exchange of calcium ions by
copper ions. Ion exchanged stilbite is characterized by XRD, FTIR and EDS techniques. Thick films
are deposited on pre-cleaned glass substrates using screen printing technique. These films are then
sintered at 650 °C for 2h for proper adhesion to take place and are finally used as sensors to test
ethanol. The XRD profiles and FTIR spectra reveal that the sensor material is a stilbite zeolite.
Incorporation of copper ions in stilbite structure can be confirmed by EDS data. Cu-stilbite films are
found to be sensitive to ethanol. The operating temperature, ethanol response, response/recovery
nature are observed to be the functions of concentration of copper ions. Higher the copper
concentration (0.2M) lower is the operating temperature (90°C) and higher is the ethanol sensitivity
(233). It can be concluded that partial replacement of calcium by copper ions in stilbite leads to
change in operating temperature and sensitivity.
Keywords: Stilbite, Ion exchange, Ethanol sensor
Please insert
photograph of
the presenting
author.
ICMM-2019 77 Book of Abstracts
ICMM: 172 | Quenching effect of co-dopant Pr3+ on Red Emitting Yttrium
Vanadate Phosphor Doped with Eu(III)
G.Neerajarania, , J.Shankara, P.Rajua, J.Anjaiaha, B.Mamathaa, N H Ayachitb
a Department of Physics, Department of Humanity and Science, Geethanjali College of Engineering and
Technology, Hyderabad, India
b Department of Physics, Rani Channamma University, Belagavi, India
*corresponding author: [email protected]
Abstract
Y1-XVO4: Eux-y 3+
: Pry3+
with x = 6 mole % and y = 0, 2, 3 ,4, 5, 6, mole % phosphors have
been prepared by solid state reaction. The dopant Eu3+
concentration was optimized along with the
co-dopant Pr3+
concentration in the yttrium vanadate host lattice with the help of photoluminescence
(PL) spectra. The phosphors have displayed red color under UV source. Pr3+
acts as quencher and
quenching effect of co-dopant Pr3+
on Red Emitting Yttrium Vanadate Phosphor Doped with Eu(III)
using luminescence Studies on Y1-XVO4: Eux-y 3+
: Pry3+
systems are presented in detail in this paper.
The emission intensities were determined and the relative fluorescence intensities have been
estimated. The richness of the red color is verified by determining the chromaticity coordinates (X,
Y) from the CIE standard charts.
Key words: optical materials; photoemission; Debye-Scherrer powder method; luminescence;
optical properties
ICMM-2019 78 Book of Abstracts
ICMM: 201 | Molecular Dynamics Study of Short Range Order and
GlassForming Ability in FeXZr100-X Metallic Glasses Anik Shrivastava1,2*, Mahendra Khandpekar3, Satya Gowtam Dometti1,
Vivek Srivastava1, Mahesh Mohape1,Vinay Deshmukh1
1Marine Materials Technology Department, Naval Material Research Laboratory, Shil-
Badlapur Road Ambernath, Thane, Maharashtra, India 421506 2 Department of Physics, G.M.Momin Women's College, Bhiwandi, Thane, Maharashtra,
421302 3Department of Physics, B.K.Birla College, Murbad Road, Kalyan, Maharashtra, India
421304
*Anik Shrivastava. Mobile: (+91) 9503625857; E-mail:[email protected]
Abstract
To study the effect of composition variation on glass-forming ability and atomic structure of the
binary FeXZr100-X alloy system, the molecular dynamics simulations were carried out. The alloy
systems were quenched at a very high cooling rate of 1011
K/s. This fast cooling deformed the
crystalline structure of the alloy. The details of crystal structure were analyzed by radial distribution
function and Voronoi tessellations. The analysis has shown that in the process of disordering, the
atoms of Fe and Zr have arranged themselves in dominant Fe and Zr centred
Voronoi clusters having indices <0,1,10,2> <0,0,12,0> and <0,3,6,4> and <0,2,8,4 > respectively.
The small variation in Zr atomic percentage has enhanced some percentage of Fe centred
<0,1,10,12> and <0,0,12,0>. Moreover the fragility parameter (m) one of the key indicators of easy
glass formation was calculated using Vogel-Fulcher-Tammann (VFT) relationship, And it's value
was found well in agreement with those of good glass former. This also implied that Fe centred
clusters influence the packing density and lower the m value which may lead an alloy to show better
GFA.
Keywords:Glass Forming Ability,Voronoi Index,Molecular Dynamics.
Acknowledgements
We acknowledge Director NMRL for computational resource and financial assistance to conduct this
research work.
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photograph of
the presenting
author.
ICMM-2019 79 Book of Abstracts
ICMM: 207 | Characterization of Ba(NO3)2 and KNO3 and their Composite
Systemsthrough SEM and DSC
1S. Shashi Devi, 2S. Narender Reddy, 3A. Sadananda Chary3
1Department of Physics, Vardhaman College of Engg, Shamshabad, R.R. Dist, Telangana, INDIA.
2Department of Physics, University College of Engg, Osmania University, Hyderabad, Telangana,
INDIA.3Department of Physics, University College of Science, Osmania University, Hyderabad, Telangana,
INDIA.
Corresponding author E-mail :[email protected].. Tel:+ 91-9676101151.
Abstract
The SEM photographs on HITACHI S-4700 FE-SEM for Composite Solid Electrolytes 0.25Ba(NO3)2-
0.75KNO3, 0.19Ba(NO3)2-0.81KNO3,0.05Ba(NO3)2-0.95KNO3 and DSC(DSC-60-SHIMADZU)plots of
Ba(NO3)2,KNO3 and their composit systems of 0.62Ba(NO3)2-0.38KNO3, 0.37Ba(NO3)2-0.63KNO3,
0.25Ba(NO3)2-0.75KNO3, 0.19Ba(NO3)2-0.81KNO3,0.05Ba(NO3)2-0.95KNO3 mole percentageshave been
studied to understand the reason behind the increment of transmission of electricity in these
materials. Uniform distribution of particle size can be noticed in 0.25Ba(NO3)2-0.75KNO3,
0.19Ba(NO3)2-0.81KNO3 comparing to other mole percentages. In 0.19Ba(NO3)2 -0.81KNO3 particle size
is found to be uniform and larger compared to other mole percentages, which would effectively
reduce the grain boundary resistance and thus increases the transmission of electricity[1]. The
increment of transmission of electricity in the present system was explained as due to the enhanced
concentration of defects in space charge region which is created between the non dispersoid host
system and nano particles of dispersoid.
Keywords: Composite Solid Electrolyte, Transmission of electricity Enhancement, SEM, DSC,
thermal analysis.
ICMM-2019 80 Book of Abstracts
ICMM: 209 | Synthesis, structure and optical properties of Indium filled
CoSb3 nanomaterials
Uday kumar M, Swetha R and Latha Kumari*
Department of Physics, B.M.S. College of Engineering, Bull Temple road, Bengaluru-
560019, India
*Corresponding author. Mobile: +919482734443; E-mail:[email protected]
Abstract
The nano-sized InyCoSb3 skutterudites (y = 0.0125, 0.025, 0.0375 and 0.0625) were synthesized by
solvo-/hydrothermal method at 240 0
C for 24 hours. The surface morphology of as-synthesized
samples analyzed by Field Emission Scanning Electron Microscope (FESEM) shows nanoparticles
with size of around 50 nm depicting narrow size distribution and Electron X-ray diffraction
spectroscopy (EDX) spectrum confirms the purity of the In-filled CoSb3 nanomaterials. The powder
X-ray diffraction (pXRD) pattern reveals all the compositions showing diffraction peaks indexed to
cubic phase of CoSb3 with Space group Im . However, no significant variation in the pXRD pattern
of In filled CoSb3 as compared to pure CoSb3justifies the successful filling of voids in cage-like
structure of CoSb3 with Indium. FTIR spectra of In filled CoSb3 presents vibration modes below
1000 cm-1
corresponding to Co-Sb bonding and Cobalt complex. A significance of In filling into
CoSb3 structure is also evident. A wide absorption has been witnessed from UV region to large part
of visible region, hence indicating the effect of nanoparticle, agglomeration and filling.
Keywords:Skutterudites; Solvo-/hydrothermal; Nanostructure; Filling; Optical properties.
ICMM-2019 81 Book of Abstracts
ICMM: 211 | Structure and morphology (FTIR, Raman, SEM) studies of
BaTiO3 ceramics for capacitor applications R. Ravanamma1,2, K. Muralidhara Reddy2, Venkata Krishnaiah Kummara2*,
RaviNirlakalla2 1Department of Physics, Jawaharalal Nehru Technological University, Anantapur, India.
2Department of Physics, Rajeev Gandhi Memorial College of Engineering & Technology, Nandyal, India.
Abstract
Ferroelectrics having perovskite (ABO3) structure exhibit wide applications in the field of super
capacitor, transducers, energy storage, microwave and memory devices. Barium titanate (BaTiO3)
ceramics with the chemical composition of 50 BaO + 50 TiO2 (BT50) were used to preparesamples
when the powders were ground at 12 hours. General solid state reaction method was chosen to
calcine the pellets at a temperature of 600 oC for 6 hours. Optical absorption specrum of BT50
ceramics unveiled the characteristic bands in the near infra-red region positioned at 695, 1457, 1768,
1937, 2194 and 2390 nm. Fourier transform infrared (FTIR) spectrum reveals the characteristic
vibrational bands located at 566, 692, 852, 1062, 1453, 1753, 2458, 2828 and 3429 cm-1
. Two intense
bands were noticed at 692 cm-1
and 1453 cm-1
. Six Raman vibrational bands were unveiled in the
laser micro Raman spectra in the region of 50 -1200 cm-1
which are centred at 140, 198, 395, 515,
638 and 1062 cm-1
. From the Raman analysis, the maximum phonon energy of BaTiO3 ceramics
found to be 638 cm-1
. The vibrational bands of 638 cm-1
and 1062 cm-1
also revealed in the FTIR
spectrum. Scanning electron microscope (SEM) explores the morphological studies that revealed the
average size of the particle in BT50 is 177 nm obtained at 1µm. Further studies are underway to
explore these interesting materials for energy storage applications.
ICMM-2019 82 Book of Abstracts
ICMM: 214 | Radiation-Induced Synthesis of Nanoparticles in Aqueous
Solution – A Mechanistic Approach
Dr. Avinash Singh1*, Dr. Apurav Guleria, Dr. M.C. Rath 1Departmentof Science and Humamities, MLR Institute of Technology, Hyderabad,
500043, India 2Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai,
400085, India
*Mobile: (+91) 8355811963; E-mail:[email protected]
Abstract
Synthesis of nanomaterials with desired properties and applications is one of the most popular areas
of research in the field of science and technology. The broadly adopted approaches for the synthesis
of nanomaterials are – (i) Top-down and (ii) Bottom-up approach. Out of these two approaches,
chemists prefer bottom-up approach for the synthesis of nanomaterials because of less expensive,
better control and more parameters which provide a variety of products with different properties and
applications. Radiation induced synthesis which comes under bottom-up approach exploits the
interaction of radiation (both high as well as low energy) with the solvent media to generate highly
reducing free radicals to induce the synthesis process. The advantages of radiation induced synthesis
over the other methods are: (i) Minimal use of potentially toxic chemicals (as reducing, capping and
cross-linking agents), (ii) Low energy consumption, (iii) Simple reaction scheme, (iv) In-situ
sterilization of product if required and (v) Dose dependent morphology of nanomaterials. In this
regards, the mechanistic approach for the radiation induced synthesis of different nanomaterials like-
CdSe and Si QDs which involve both high energy (radiation chemical) and low energy
(photochemical) using different capping agents in aqueous solution have been discussed. In radiation
chemical method, the radicals are generated upon radiolysis of water (H•, OH
•, eaq
-) after interaction
of high energy e-beam or gamma rays which will react with the solute molecules to generate
reducing radicals. On the other hand in photochemical method, low energy photons (UV) directly
interact with the solute molecules for the generation of reducing radicals e.g.- generation of 2-
hydroxy propyl radicals ((CH3)2C•OH) in acetone and 2-propanol in aqueous solution.
Keywords: Free Radicals; Morphology; Electron Beam Irradiation; Photoreactor.
Acknowledgements The author acknowledges DAE for research funding and MLR Institute of Technology for supports.
ICMM-2019 83 Book of Abstracts
ICMM: 215 | Surface Functionalized Porous Nanomaterials for Theranostics
Chander Amgotha,*, Rompivalasa Santoshb,1, Murali Banavothb,2,
Phan Chi Uyenc,1,Tang Gupingc,2 aDepartment of Science and Humanities, MLR Institute of Technology, Hyderabad-
500043,TS, India bSchool of Chemistry, University of Hyderabad, Hyderabad-500046,TS, India
cSchool of Chemistry, Zhejiang University, Hangzhou-310028, China.
*Corresponding author. Mobile: (+91) 9908812120; E-mail: [email protected], [email protected]
Abstract
Novel bio-inspired nanoarchitectured materials with surface functionalized properties have potential
applications in various fields. Polymeric porous nanomaterials/particles/capsules are taking as a
challenging task for surface porosity as payload for anticancer drugs and nanomedicines for drug
delivery and cancer theranostics [1]. The hybrid of bio-inspired SiO2NPs, ZnONPs along with
biodegradable, biocompatible and bio-safe (3B) polymers can help to design and develop potential
carrier nanomaterial for biomedical and biotechnological applications.The metal (AuNPs/AgNPs) in
combination of 3B polymers can easily functionalized and nanomaterial or particle or capsule surface
profile can be modified based in the applications [2]. The active functional groups present in the
polymers lead to the self-assembly followed by the net-work formation capabilities. The interactions
between polymer and inorganic, organic and metal nanoparticles has been examined through the
following characterization tools FTIR, SEM, FE-SEM, AFM and TEM for functional groups, size,
shape, morphology, surface profile. The BET surface area, porosity and specific surface area of
nanoparticles. The nanomaterials/capsules with size of ~100 to 200 nm (in diameter) has been
engineered and used to develop nanoformulations for cancer therapeutics.
Keywords: Functionalized, nanomaterials, porosity, theranostics
Acknowledgements
The authors would like to acknowledge UGC for financial assistance under the RGNF Scheme. The
Centre for Nanotechnology, University of Hyderabad for TEM and HR-TEM characterizations. The
MLRInstitute of Technology for financial assistance and facilities.
ICMM-2019 84 Book of Abstracts
ICMM: 217 | Synthesis, Characterization & Studies on
Polyaniline/Nanocomposites ThinFilms
Dr.Jakeer Husain1,Bushara anjum2, Dr.Nagalli Raghu3 ,Jaisheel Sagar3* 1 Assistant Professor dept of Engg Physics, K.B.N. College of engineering KBNU
Gulbarga,karnataka
2 Nagambika College of education for woman Bijapur University
3 Department of Mechanical Engineering, Farah Institute of Technology, Chevella,
JNTUH, India
*Author of Correspondence: Dr.Jakeer Husain
Email id:[email protected]: +918861157762
Abstract
Nanocomposites of Polyaniline/Copper oxide were prepared by in-situ polymerization method. These
nanocomposites were characterized by employing Scanning Electron Microscope (SEM),Transmission
Electron microscopy (TEM) ,Thermal study by (TGA).The dc conductivity of prepared composites was
measured as a function of temperature which shows the strong interaction between Pani and copper oxide
particles and exhibits semiconducting behavior. The prepared composites shows better Electrical& Thermal
properties which may be useful for Potential applications.
Keywords: PANI, Nanocomposites, TEM, SEM, conductivity, Sensitivity
Acknowledgements
The author Dr.Jakeer Husain gratefully acknowledges the financial support from VGST Program.
ICMM-2019 85 Book of Abstracts
ICMM: 218 | Analysis of p-Si/AlN/n-ZnOHeterojunction Diode using
GaussianDistribution of Barrier Heights
Chandra Prakash Gupta1, Praveen K. Jain2, Shashi Kant Sharma3, Shilpi Birla1, Sandeep
Sancheti4 1
Department of Electronics and Communication Engineering, Manipal University Jaipur- 303007,
Rajasthan, India
2 Department of Electronics and Communication Engineering, Swami Keshvanand Institute of
Technology,Management &Gramothan, Jaipur-302017,Rajasthan, India
3Department of Electronics and Communication Engineering, Indian Institute of Information
Technology, Ranchi, Jharkhand, India
4SRM Institute of Science and Technology, Chennai, Tamilnadu 603203, India
*Corresponding author. Mobile: (+91) 9414205424; E-mail:[email protected]
Abstract
In this report, we have presented the temperature dependent electric transport study of p-Si/n-
ZnOheterojunction diode fabricated by RF sputtering. For the better electrical characteristics, we
have used AlN buffer layer between ZnO and Si to lower the mismatching of thermal expansion
coefficient/lattice constant between Si and ZnO. The crystalline structure and surface morphology
have been studied using XRD and FESEM respectively. The measurement of I-V characteristics with
temperature variation (303 K- 413 K) were performed using semiconductor parameter analyzer. The
values of barrier height and ideality factor were measured from the temperature dependent I-V curve.
The relationship between ideality factor and barrier height was found to be linear. The mean value of
barrier height and Richardson constant were obtained as 125 meV and 2.709 x 10 -13
A cm-2
K-2
.
Results also confirm that theory of thermionic emission is followed by p-Si/AlN/n-ZnO
heterostructure. Further, the modified Richardson constant was evaluated by considering the
Gaussian distribution of inhomogeneous barrier heights.
Keywords: Electrical Properties, RF Sputtering, p-Si/AlN/n-ZnOHeterostructure, Temperature
Dependent Study.
ICMM-2019 86 Book of Abstracts
ICMM: 220 | Study of Electrostatic Actuated MEMS Biaxial Scanning Micro-
Mirrorwith Comb Structure
Dhrubajyoti Sadhukhan, Gajendra Prasad Singh Department of Nanoscience & Technology, Central University of Jharkhand, Ranchi-835205,
India
Mobile: (+91) 8895740753; E-mail: [email protected]
ABSTRACT
MEMS based actuator and scanning mirror is device that steers and reflects incident light by
angular rotation of the mirror itself. It finds applications in optical MEMS (OMEMS), digital light
projector, optical switch, adaptive optics, communications, signal sensing, and confocal microscopes.
For single axis scanning, the mirror itself provides the required angular rotation, while most of the
biaxial scanning micro mirrors have a gimbal configuration. Electrostatic actuation is commonly
being used because of ease of fabrication and work on the principle of electrostatic forces between
pairs of movable and fixed electrodes. Parallel plate type tip-tilt/scanning mirror is commonly being
used for smaller mirror dimensions (up to 2mm). For larger mirror diameter (>2mm), the desired
scan angle leads to large gap between the electrodes, which increases the driving voltage drastically
and leads to bulky driver controller. To reduce the driving voltage, the straight torsion springs which
connect the mirror to the gimbal are replaced by comb structures. In this paper, design, simulation of
electrostatic actuation based parallel plate comb type two axis tilt scanning micro mirror is described.
The effect of comb structure on pull-down voltage and resonant frequency is studied.
Keywords: Micro Eelectro Mechanical systems (MEMS), Electrostatic actuator, Scanning micro-
mirro, Adaptive optics.
ICMM-2019 87 Book of Abstracts
ICMM: 221 | Performance of Li-ion Battery Anode: Investigating the Roleof
Alternate Binders
Supriya Pal1,2 and Pratyay Basak*1,2 1Nanomaterials Laboratory, Department of Polymers & Functional Materials;
2Academy of Scientific & Innovative Research (AcSIR)
CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, TS, India.
*Corresponding author. Mobile:(+91) 9652014644; E-mail: [email protected]
Abstract
Rechargeable Li-ion batteries although efficiently power small portable devices, implementation in
electric vehicle mobility to assuage environmental concerns demand batteries possessing higher
power densities and capacities while being compact and safer. Recent research is hence focused
towards developing battery components that can sustain high charge-discharge rates while
comprehensively addressing the safety issues. In our present research effort, attempts are made to
investigate the role of different binders on the performance of nanostructured lithium titanate (LTO,
Li4Ti5O12) anodes in half-cell configuration against Li-metal. Commercial nano-LTO, Super-P and
polyvinylidene fluoride (PVdF) are used as reference materials for comparative appraisal. An
endeavor is made to showcase the feasibility of water-soluble binders: sodium alginate (Na-alginate)
and sodium carboxymethyl cellulose (Na-CMC) for greener processing of the electrodes and evaluate
the effect on specific capacity, reversibility, charge retention, etc. Binders provide sufficient adhesion
interconnecting the active particles as well as maintain proper contact with the current collector, thus
are well understood to influence the conductivity of electrodes, electrolyte wetting behavior,and the
charge-transfer across interfaces. Comprehensive analysis of electrochemical impedance data
collected at the end of each galvanostatic charge/discharge cycle provided crucial clues in
understanding the charge transfer behavior for the electrodes fabricated with the binders.
Keywords: Binder; Lithium titanate; Adhesion; Impedance
Acknowledgement: The authors wish to acknowledge the University Grants Commission (UGC),
India for financial assistance in the form of Senior Research Fellowship, Academy of Scientific &
Innovative Research (AcSIR) and CSIR-IICT for the doctoral research support.
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ICMM-2019 88 Book of Abstracts
ICMM: 227 | Synthesis, characterization and optoelectronic properties of
alumina-tin oxide nanocomposite deposited on 1D carbon backbone Deepti R. Kulkarni1*, Narasimha H. Ayachit2, Suresh D. Kulkarni3,
Raviraj M.Kulkarni4
1Department of Physics, Rani Channamma University, Belagavi-591156, INDIA
2KLE Technological University, Hubballi, Karnataka, INDIA
3Department of Atomic and Molecular Physics, MIT, Manipal Academy of Higher
Education, Manipal, India-576104 4Centre for Nanoscience and Nanotechnology and Department of Chemistry, KLS Gogte
Institute of Technology (Autonomous), Udyambag, Belagavi-590008, Karnataka, INDIA
*Corresponding author. Mobile: (+91) 9242922096; E-mail:[email protected],
Abstract
Alumina-Tin oxide nanocomposite deposited on 1D carbon backbonefor solar cell and optoelectronic
applications was synthesized by simple co-precipitation method.The nanocomposite was
characterized by XRD, SEM, EDX and TEM. The TEM image indicates that the prepared Al2O3-
SnO2 nanocomposite is deposited on 1D carbon backbone. The length of the nanowire is in few
micrometers and radius is around 10 nm. The elemental analysis shows the presence of peaks due to
Al, Sn, C and O. The average crystallite size of SnO2 was found to be 5.185 nm from XRD analysis.
Further, no peaks related Al2O3 were detected indicating amorphous phase of Al2O3 nanoparticles.
Room temperature photoluminescence spectroscopy of Sn-Al2O3 nanowires revealed emission
ranging from 410 nm to 540 nm comprising of multiple emission bands centred at 433 and 504nm
and additionally shoulder peaks at 445, 455, 478 and 488nm. None of these bands correspond to the
band-gap of the material and hence should be due to different defect states within the band-gap. UV-
Visible diffused reflectance studies revealed that the band-gap of the nanocomposite is 4.23 eV. BET
investigation shows that the specific surface area of the nanocomposite is 130 m2g
-1 and pore volume
is 0.268 cm3g
-1.
Keywords: Alumina; Tin oxide; 1D carbon backbone; Solar cells; optoelectronics.
Acknowledgements
Authors would like to thank STIC Cochin for their support in characterization of nanostructures.
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ICMM-2019 89 Book of Abstracts
ICMM: 228 | First-principles study of structural, elastic, electronic and
optical properties of cubic perovskite LiMgF3 for novel applications
K. Ephraim Babu1*, K. Neeraja1, D. Deenabandhu2, V. Venkata Kumar3,K.
Bueala Kumari3,Paulos Taddesse4,G. Tewodros Aregai5, B.Vikram
Babu6,K. Samatha6 and V. Veeraiah6 1Department of Physics, Narasaraopeta Engineering College(A),Narasarao pet,
Yellamanda (P.O) Guntur(D.T) Andhra Pradesh, 522601, India. 2Department of Physics, Dr. L. B. College of Engineering for Women, Visakhapatnam.A.P.
3Department of BS&H, St. Ann’s College of Engineering & Technology, Nayunipalli
village, ChallaReddy Palem Post, Vetapalem Mandal, Chirala, Prakasam District, AP - 523187, India 4Department of Physics, College of Natural Sciences, Arba Minch University, Arba Minch, Ethiopia.
5Department of Physics, Aksum University, Ethiopia
6Department of Physics, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, India.
*Corresponding author. Mobile: (+91) 9849619867; E-mail: [email protected]
Abstract
Structural, elastic and optoelectronic properties of materials are important to identify their
applications in technology. In the present paper LiMgF3 is investigated to obtain these properties
using the highly accurate full-potential linearized augmented plane wave (FP-LAPW) method. The
exchange correlation effects are included through the generalized gradient approximation (GGA) and
modified Becke-Johnson (mBJ) exchange potential. The structural optimization of LiMgF3 is
compared with previous results and is found to be in good agreement with those results. The
predicted band structure shows an indirect (M-Г) bandgap of 6.1 eV. The elastic properties such as
elastic constants, anisotropy factor, shear modulus, Young’s modulus, Poisson’s ratio are calculated
and based on these calculations it is found that this compound is elastically stable and brittle in
nature. The contribution of different bands to the band structure is analyzed from the total and partial
density of states curves. Optical properties like real and imaginary parts of dielectric function,
refractive index, extinction coefficient, reflectivity, energy loss function, conductivity and absorption
coefficient are presented. Based on the optical properties of the compound, it is predicted that
LiMgF3 is suitable for optoelectronic devices.
Keywords: Elastic properties, Fluoroperovskites, FP-LAPW, DFT, Optical properties.
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ICMM-2019 90 Book of Abstracts
ICMM: 231 | Factor affecting the performance of perovskite solar cell for
distinct MAPI layer thickness
Sagar Bhattarai1, Arvind Sharma1, Dr.T.D.Das1* 1Department of Basic and applied science (Physics), National Institute of Technology,
Arunachal Pradesh, Yupia-791112, India.
*Dr. T.D. Das. Mobile: (+91) 9830956468;E-mail: [email protected]
Abstract
From an extensive study, we proposed a perovskite structure
(ITO/ZnO/CH3NH3PbI3/C60/Au) to demonstrate the carrier transport and optical characterization
using a commercially available software package. We develop a visible light absorbing 1.65 eV
bandgap perovskite, CH3NH3PbI3 that can deliver 14.37% power conversion efficiency (PCE) and
external quantum efficiency of 82%. Among the different thicknesses of perovskite layer, the 250 nm
thickness of the perovskite layer offers the highest open-circuit voltage (0.807V), short-circuit
current density (9.2459mA/cm2), and fill factor (0.7677). It accounts for quite remarkable significant
improvement depicted in absorbance profile, mainly 86% for 250 nm thickness of the perovskite
MAPI layer. Simultaneously, an average of 94% observed in the absorbance profile in sweeping
angle cases from 0 to 85 degrees.
Keywords: External quantum efficiency, Power conversion efficiency, Short circuit current density,
Open circuit voltage, Fill Factor
Acknowledgements
Author Sagar Bhattarai is the fellowship recipient of TEQIP-III Fellowship for carrying out his PhD
research work on organic solar cell at NIT Arunachal Pradesh.
ICMM-2019 91 Book of Abstracts
ICMM: 243 | Zinc Oxide Nanostuctures prepared by modified
ultrasonication-cumbustion method for optoelectronic device application
VishwalingaPrasad B1, Daruka Prasad B2*, Ningappa C3
1Department of Studies in Physics, Government First Grade College, Sirsi, 581401, India
2Department of Physics, BMS Institute of Technology and Management, Bangalore,
560064, India 3Department of Physics & Research Centre Vidya Vikas Institute of Engg and Tech
Mysuru , 570028, India
*Corresponding author. Mobile: (+91) 9535100437; E-mail:[email protected]
Abstract
In this work, eco friendly simple modified ultrasonication-cumbustion method has been
adopted to synthesize Zinc Oxide Nanoparticles using naturally available Vitis vinifera fruit and
Aegle marmelos L. leaves extracts.8.91 g of zinc nitrate, 10 ml of each extract and 10 ml of distilled
watermixture was taken in a round bottomed flask and stirred for 30 min to get clear solution. Then
the mixture was kept for ultrasonication at a frequency of 22 KHz for 30 min at a temperature of
353 K. Then the solution was heated in the muffle furnace for the combustion process for about 20
min at 633 ± 5 K. to get ZnO Nanopatrticles. The synthesized Zinc Oxide Nanoparticles showed
hexagonal wurtzite crystalline phase confirmed by Powder X-Ray Diffraction patterns. Scanning
Electron Microscope gives images of Surface morphology of the synthesized Nanoparticles. The
Energy Dispersive X-Ray Spectroscopy gives elemental composition of the prepared Nanoparticles.
From Ultra-Violet-Near Infrared studies,energy band gap calculated which is correlate with the
reported literature. Fluorescence emission studies shows the prepared ZnO Nanoparticles emissions
are in the blue region useful in optoelectronic devices and light emitting diodes.The red and green
fluorescence emissions can be further enhanced by choosing suitable europium rare-earth dopants.
Keywords: Zinc Oxide; Ultrasonication-cumbustion; Nanoparticles.
Acknowledgements
Author Dr. Daruka Prasad B would like to acknowledge the VGST , Government of Karnataka for
funding towards the project.
ICMM-2019 92 Book of Abstracts
ICMM: 247 | FTIR, Raman and XRD analysis of graphene oxide
filmsprepared by modified Hummers method
G. Surekha1, 2, Venkata Krishnaiah Kummara2, Ravi Nirlakalla2, R. Padma Suvarna1
1Department of Physics, Jawaharlal Nehru Technological University, Anantapuramu, AP.
2Department of Physics, Rajeev Gandhi Memorial College of Engineering & Technology, Nandyal, AP.
Abstract
Graphene oxide (GO) is a promising material for energy storage device applications.
Modified Hummers method (MHM) was used to prepare GO films from graphite flakes by Sol-Gel
method. With the aid of bridging agent dimethyldichlorosiline fine GO films were prepared. Fourier
transform and infra-red (FTIR) spectrum of the GO thin film possess absorption bands at 461, 594,
670, 803, 1020, 1243, 1457, 1544, 1627, 2850, 2926 and 3429 cm-1
. A sharp OH- absorption band
was revealed at 3429 cm-1
. Two vibrational bands were noticed in the laser micro Raman spectrum
for pure graphite flakes at 1578 and 2718 cm-1
. However for GO five Raman vibrational bands were
unveiled centred at 413, 1344, 1597, 2697 and 2945 cm-1
. Among these bands, 1344 cm-1
was
assigned to D-band and 1597 cm-1
was assigned to G-band to the GO films. Compared to D-band, G-
band was dominant in the GO films. Several times of centrifugation and ultra-sonication process
have aided to obtain more intense of G-band. 2D and D + G bands were also revealed in the GO
films. X-ray diffraction (XRD) analysis was confirmed that a sharp peak at 10.64 degrees leads to the
GO thin film.
ICMM-2019 93 Book of Abstracts
ICMM: 248 | 3d Printed Pcl/Ha/Go Biodegradable Polymer NanoComposites
for Bone Tissue Engineering
T S C Nataraj1 M. Meikandan2 1Assistant Professor, Department of Mechanical Engineering, Vignana Bharathi
Engineering College, Hyderabad, India
Research Scholar, Vel-Tech University, Chennai
([email protected]), Ph: +91 8309740042. 2Assistant Professor, Department of Mechanical Engineering,Vel-Tech
University,Chennai.
([email protected]), Ph : +91 9490907989.
Abstract
In this Research work, poly(caprolactone)/hydroxyapatite/Graphene oxide (PCL/HA/GO) composite
scaffolds for bone tissue engineering applications were produced by a melt extrusion (3D Printing)
additive manufacturing technique. Porous matrices with four different pore architectures were
produced by varying the pore size (400µm) and the lay-down pattern (0/45º or 0/90º). As for the
matrix composition, different HA percentages (0%, 15% and 20%) and different GO Percentages (
0%,20% and 25%) used in liquid melted PCL and then allowed for solidification. These scaffolds
were characterized in terms of chemical, thermal, morphological and mechanical properties using
techniques such as Fourier Transform Infrared Spectroscopy (FTIR), thermogravimetry, differential
scanning calorimetry, scanning electron microscopy (SEM) and compression tests. Additionally, the
vitro interactions between scaffolds and living cells were assessed.
Keywords: scaffolds; polycaprolactone; hydroxyapatite; Graphene Oxide; melt extrusion; 3D
Printing.
ICMM-2019 94 Book of Abstracts
ICMM: 253 | Battery Energy Storage Technologies for SustainableElectric
Vehicles and Grid Applications
G. Sree Lakshmi 1, Rubanenko Olena1, G. Divya2, Rubanenko Oleksandr3,
1Regional Innovational Center at the Faculty of Electrical Engineering University of West
Bohemia, Plzen, 306 14, Czech Republic 2Electrical & Electronics Engineering, CVR College of Engineering, Hyderabad, 501510, India.
3 Department of Electric Stations and Systems of Vinnytsia National Technical University, 21000,
Vinnytsia, Ukraine
*G. Sree Lakshmi. Mobile: (+91) 8897893714; E-mail: [email protected]
Abstract
The energy consumption in worldwide has been increasing rapidly, due to increase in world
population. This energy consumption growth is apparently impacting on the environment and the
society. This has accelerated the development and deployment of Renewable Energy Sources (RES)
harvesting technologies and facilities. The global electricity production by RES by the end of 2016 is
accounted to 24.4%. This increase in RES has highlighted the next big challenge, storage of energy
when demand is lower than the supply. There are many energy storage technologies existing from
decades. Battery technologies have the highest cost reduction potential at the moment. Battery
technologies are delivering significant advances in a wide range of industries, from electrical
vehicles to renewable power. From the discovery of electrical energy, there is a great need to store
the electrical energy generated for use on demand. Energy Storage Systems (ESS) is used to store the
excess electricity when a power production is greater than consumption. ESS play very important
role for off-grid storage applications to back up Renewable Energy such as Solar and Wind power,
used by people who live or work in remote areas. Electrical energy can be stored in different forms
including Electrochemical- Batteries, Kinetic Energy-Flywheel, Potential Energy-Pumped Hydro,
and Compressed Air (CAES). This paper gives the current state of battery storage technologies, its
main challenges, its applications and actions for future.
Keywords:Energy Storage Systems (ESS), Electric Vehicles (EVs), Renewable Energy Sources
(RES), Lithium-ion battery, Lead-acid battery.
ICMM-2019 95 Book of Abstracts
ICMM: 254 | Dielectric Properties Analysis of Paper Capacitor
G. Sree Lakshmi 1, Rubanenko Oleksandr2, Rubanenko Olena1, 1Regional Innovational Center at the Faculty of Electrical Engineering University of West Bohemia,
Plzen, 306 14, Czech Republic 2 Department of Electric Stations and Systems of Vinnytsia National Technical University, 21000,
Vinnytsia, Ukraine
*Corresponding author. Mobile: (+91) 8897893714; E-mail: [email protected]
Abstract
The film-impregnated dielectric under operating conditions is subject to prolonged exposure to
electric and thermal fields, as well as mechanical loading. In addition to critical partial discharges,
the most serious drawback that impairs the film and condenser reliability in general is the
deterioration of the electro-physical characteristics of the polypropylene film and liquid dielectric
due to the gradual dissolution of the polymer in the liquid dielectric, which is determined by their
chemical composition. This interaction of components, which was investigated in detail, has a
thermoactivation nature, which relates to the processes of rearrangement of atoms or molecules with
the overcoming of potential barriers, and is manifested in the swelling of the polypropylene film with
subsequent dissolution of the amorphous component in the polymeric component. As a consequence,
irreversible structural changes of the film occur, which lead to a decrease in its electrical and
mechanical strength, as well as to an increase in the dielectric loss of the liquid dielectric.Capacitor
(Fig. 1 (a)) is designed to provide high-frequency communication at frequencies from 24 to 1500
kHz in power lines with a nominal voltage of 35, 110, 150, 220, 330, 500 kV AC 50 and 60
Hz.Coupling capacitor impregnated with environmentally friendly liquid - condenser oil.The short-
circuits consist of capacitor sections (Fig. 1 (b)): a thin layer of dielectric is laid between two thin
wide metal strips, and the dielectric film is placed on top and below the metal strips - capacitor
covers.This paper gives the detail analysis of dielectric properties of capacitor paper.
a) b)
Fig.1 – a - Capacitor connection; b- capacitor section and condenser paper for extra insulation
between sections
Keywords: Condenser paper, Insulation, Capacitor.
ICMM-2019 96 Book of Abstracts
ICMM: 257 | Structural, microstructural and optical property studies on sol-
gelsynthesized Cr/Fe-doped CuO nanoparticles
J. Praveen Kumar1, K.S.K.R. Chandra Sekhar2, Anantharao Paila2 and
Tirupathi Patri1*
1Department of Physics, Rajiv Gandhi University of Knowledge Technologies, (AP –
IIIT), RK Valley,Kadapa – 516330, India. 2Department of Engineering Physics, A.U. College of Engineering (A), Andhra
University, Visakhapatnam – 530003, India.
*Corresponding author. Mobile: (+91) 7674862873; E-mail:[email protected]
Abstract
All Here with we reported a detailed synthesis of Fe/Cr co-doped Copper oxide nano particles with a
simple and inexpensive wet chemical method. The pure and Fe, Cr substituted CuO nanoparticles
was prepared with sol-gel chemical method are expedient for industrial application. The preliminary
X – ray diffraction and Rietveld refinement study revealed a pure crystallinity nature with
monoclinic crystal with C2/c phase. The average crystallite size was calculated by Scherrer’s formula
in order of 21 nm and further observation indicates with increase concentration crystalline size
increases. The scanning electron microscopy (SEM) images indicate particles are in 20-30 nm range.
The Raman spectroscopic study indicates the existence of molecular groups in the CuO nanoparticles
with the doping of Cr and Fe.
Keywords: CuO Nano particles, Sol – gel method, Crystallite size and Particle size.
Acknowledgements The authors would like to thank UGC-DAE Consortium, Mumbai Centre, India for providing
experimental facilities and financial support under UGC-DAE, CRS-M-216-Sponsored Project
Scheme.
ICMM-2019 97 Book of Abstracts
ICMM: 261 | Optimal Use of Power Generated by Renewable Energy Sources
UsingLinear Programming Method
Dr. A. Jaya Laxmi*, Ch. Anjamma, R. Pradeep, A. Laxman rao JNTUHCEH, HYDERABAD, 500085, INDIA
*Corresponding author. Mobile: (+91) 94400569949; E-mail:[email protected]
Abstract
Renewable energy sources like solar and wind as Distributed Generation (DG) systems can
be made available to meet local power demand. Natural disasters mostly damage the distribution
system. Under these conditions it is necessary to supply power to emergency services like hospitals.
If DGs are available, these can be used to supply the load. To meet the maximum demand the
optimal use of available DGs is required. An optimization problem is formed using cost functions of
renewable energy sources and it is solved using Linear Programming method (LP) in MATLAB.
Problems with reproductive power, despite its purpose to the environment, continue to be associated
with its operation and reliability. The production and weather condition of some renewable energy
sources, such as wind and solar power generators are determined. Due to this intermittent nature,
power generated by these sources is highly variable in nature and cannot be considered as dispatch
able. As a consequence, the power supply must be maintained or backed up by alternate volatile
power sources such as diesel generator, battery or fuel cell. In this paper, three generation systems
like solar, wind and diesel systems are considered and an optimization problem is formed using cost
functions of these DGs.
Keywords: Optimization, Linear Programming Method, Reduced Gradient Method, Cost function.
Acknowledgements:
I thank TEQIP-II, JNTUHCEH for providing necessary infrastructure.
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ICMM-2019 98 Book of Abstracts
ICMM: 264 | Influence of active layer thickness on the cut-off frequency ofa-
IGZO thin film transistor
Roshna B. Raj1*, Shiny Nair2, Ashutosh Tripathi3, T. Mukundan2, Shahana T.
K. 1 1Cochin University of Science and Technology, Kochi, 682022, India
2Naval Physical and Oceanographic Laboratory, Kochi, 682021, India
3National Centre for Flexible Electronics, IIT, Kanpur, 208016, India
* Mobile: (+91) 9895177200; E-mail: [email protected]
Abstract
In amplifying applications of amorphous-Indium Gallium Zinc Oxide (a-IGZO) based thin
film transistors (TFTs), the device cut-off frequency fT is one of the primary figure of merit and has
to be simultaneously optimized along with intrinsic device gain.Design optimizations like channel
length and gate/contact overlap length (LOV) scaling and operating the device at higher overdrive
voltage and process optimizations resulting in enhanced mobility and lower threshold voltages are
generally used for fTenhancement. But the design optimization of channel length scaling leads to
mobility degradation due to contact resistance (RC). It has been reported that analytically RC in TFTs
is directly proportional to the transfer length (LT) and inversely proportional to the LOV. LT represents
the effective area of charge transfer between gate and the contact. It depends upon the
metal/semiconductor interfacial resistivity, the vertical bulk resistance and the semiconductor sheet
resistance. With lower transfer lengths, RCreduces, effective mobility (µeff) increases and LOV can be
scaled down without adversely increasing the RC. Decreased LOV can lead to a lower overlap
capacitance and a higher fT. To study the effect of thickness scaling, a-IGZO based TFTs are
fabricated and characterized. Density of states model is extracted and TCAD numerical simulations
are used to study the influence of active layer thickness scaling, on LT, RC, µeff and fT. By varying the
channel lengths from 10µm to 100μm, transfer line method of contact resistance estimation [4], is
used to extract LT and RC of the devices. The active layer thickness is varied from 70µm to 20μm. It
is found that LT decreases as the active layer thickness scales down below the Debye length due to
lower vertical bulk resistance. This results in a lower RC and higher µeff, facilitating further scaling of
LOV leading to enhanced fT of the device.
Keywords: a-IGZO; thin-film transistor; cut off frequency; contact resistance; transfer length.
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ICMM-2019 99 Book of Abstracts
ICMM: 265 | Influence of Thickness on the Peformance of the Pulsed Laser
Deposited CZTS Counter Electrode Based DSSC cells
A.C. Kasi Reddy1, K. Susmitha1, M. Gurulakshmi1, Thota
Narayana, M. Raghavender 1, Y.P. Venkata Subbaiah1, *
1 Department of Physics, Yogi Vemana University, Kadapa-516005, A.P., India.
Solid State and Structural Chemistry Unit, Indian Institute of Sciences
Bangalore 560012, INDIA
*Corresponding author. Mobile: (+91) 9966248876; E-mail:
Abstract
The copper zinc tin sulfide (CZTS) is a widely studied absorber material for thin film solar cells.
Recently, CZTS have found suitable for counter electrode (CE) material in Dye sensitized solar cells
(DSSCs) due to high cost of Pt.In this paper, we propose pulsed laser deposited CZTS on florin-
doped tin oxide (FTO) conducting substrate as efficient counter electrode and studied the thickness
effect on the performance of the DSSC.X-ray diffraction(XRD) and Raman spectroscopy reveal the
formation of single phase kesterite CZTS with (112),(220) and(312) planes confirms the single phase
CZTS as evidenced by weak and strong Raman modes at 285,337 and 352cm-1
. The influence of the
thickness of CZTS samples on the catalytic performance of DSSCs was also investigated. The electro
catalytic ability and electrochemical properties of the CZTS CEs were studied by cyclic voltammeter
(CV), electrochemical impedance spectroscopy (EIS), and Tafel plot. The performance of DSSCs
with various thickness of CZTS CEs was measured usingJ–V curves. The DSSC based on CZTS
counter electrodes deposited with the thickness of 300 nm showed maximum solar-to-electrical
power efficiency of 3.98%. The results indicated the potentiality of CZTS to replace Pt CE (5.55%)
in DSSC.
Keywords: CZTS; Counter Electrodes; Cyclic-Voltammeter
Fig. J-V curve voltage Vs current of different thickness of CZTS counter electrodes with Pt..
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ICMM-2019 100 Book of Abstracts
ICMM: 266 | Electrical Transport Study of Fe1-xCrxSi
Sankararao Yadam 1, V. Ganesan 2
1Department of Humanities and Sciences, CVR College of Engineering, Telangana 50151,
India 2UGC-DAE CSR, University Campus, Khandwa Road, Indore-452001, India
*Corresponding author. Mobile: 8349942800; E-mail: [email protected]
Abstract
The Resistivity of Cr doped Kondo Insulator FeSi is studied for Cr concentrations x = 2.5,
7.5, 10, 12.5 and 15%. This system is known to exhibit metal to insulator transition (MIT) and
critical concentration (xc) for MIT is x = 1.94%. The current study revealed possibility of Variable
range hopping (VRH) for the samples above the xc for MIT. The energy gaps obtained by fitting the
VRH equation σ = σ0 – exp[-(T0/T)0.5
] to the resistivity are compared with those obtained from two
band model which was used to fit both thermopower and resistivity.
Keywords: Resistivity; Kondo Insulator; Variable range hopping; Energy gap
Acknowledgements Researchers of the Low Temperature Laboratory and Cryogenics, especially, Er. P. Saravanan for the
supply of cryogens from UGC-DAE CSR Indore, M. P. are thanked for their help.
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ICMM-2019 101 Book of Abstracts
ICMM: 267 | Relaxation dynamics of Dimethylacetamide/Glycerol binary
mixturesinvestigated by dielectric spectroscopy
T. Vamshi Prasad a, V Manjula b, K.C. James Raju c, Y. Aparna a*, T. Vishwam b
aDepartment of Physics, Jawaharlal Nehru Technological University- Hyderabad, TS, India -500 085
bDepartment of Physics, GITAM (Deemed to be University) -Hyderabad campus, Rudraram village,
Patancheru (M), Telangana 502329 cSchool of Physics, University of Hyderabad, Hyderabad, Telangana 500046, India
Corresponding author email: [email protected]
Abstract
In the present manuscript, the dielectric permittivity of Dimethylacetamide/Glycerol binary
mixtures are determined at the temperature range of 298K-323K in the microwave frequency range.
The experimental dielectric permittivity, dipole moment, relaxation time values are used to obtain
remaining excessive parameters such as excess permittivity (εE), excess refractive index (nD
E), excess
inverse relaxation time (1/τ)ε, Kirkwood correlation factor(g
eff)and thermodynamic parameters.
Redlich-Kister polynomial equation is used to fit the excess dielectric parameters. Havriliak-Negami
equation is used to evaluate and analyse the relaxation time of the binary mixtures throughout the
measured temperature range. The experimental dipole moment values are compared with the
theoretical dipole moment values from DFT/B3LYP, MP2 methods. Natural bond orbital (NBO)
analysis is performed on the optimized geometrical structure of the above system to understand
molecular interaction between the binary mixtures in terms of hydrogen bonding.
Keywords:Dipole moment, Relaxation, DFT, NBO analysis, hydrogen bonding
Acknowledgements
The authors gratefully acknowledge University Grants Commission Networking Resource Centre,
School of Physics, University of Hyderabad, for giving the Opportunities to use the Research lab
facilities to carry out the above work.
ICMM-2019 102 Book of Abstracts
ICMM: 269 | Diesel generator and SOFC Fuel Cell Based Hybrid Energy
System
Manjul Khare1, Manju Khare2 1Electrical and Electronics Engineering department, Geethanjali College of Engineering & Technology,
Hyderabad, India
[email protected] 2Electrical and Electronics Engineering department, Laxmi Narain College of Technology, Bhopal, India
Abstract
In India ample source of alternative energy is available, 65% population of India lies in rural
area and only 30% of rural area have a grid connected electricity. Their situation becomes
impoverished in summer time due to frequent load shedding. In this paper our aim is to design SOFC
and diesel based hybrid system that will cater domestic as well as irrigation need in a remote located
village. Design and modeling of Solid Oxide Fuel cell (SOFC) is discussed for the distributed
generation applications. Modeling and simulations are carried out in MATLAB Simulink platform.
Solid oxide fuel cells operate at temperatures near l0000C, these are highly efficient heat and electric
power source. Modeling of SOFC is done by using Nernst equation. In that the output power of the
fuel cell can be controlled by controlling the flow rate of the fuels used in the process. The fuel cell
source is integrated with diesel generator and battery hybrid energy system.
Keywords: Fuel Cell, SOFC, diesel Generator, battery.
ICMM-2019 103 Book of Abstracts
ICMM: 275 | CFD Investigation of Double Pipe Heatexchanger Using Silica
Nano Fluid
G. NIVEDINI1, K. PRASAD2, Ch. SANDEEP3, K. VENKATESWARA RAO4* 1 M.TECH student, Mechanical Department, JNTU-Kakinada
2 Assistant Professor, Mechanical Department, JNTU-Kakinada
3 Associate Professor, Mechanical Department, Institute of Aeronautical Engineering, Dundigal
4Professor, CNST, IST, JNTU-Hyderabad
*Corresponding author. E-mail address: [email protected]
Abstract
This paper reports on the enhancement of heat transfer by the usage of nanofluid in place of
conventional fluids like water, oil, etc, in the double pipe heat exchanger. The heat exchanger is used
to transfer the thermal energy between two or more phases, such as solid, liquid or gas, at different
temperature and in thermal contact. The nanofluid is prepared by using silica nanoparticles, with
distilled water as the base fluid. In place of conventional water, the prepared nanofluid is applied in
the heat exchanger as the cooling liquid. A double pipe heat exchanger is modeled and meshed using
the ANSYS software.The heat transfer characteristics of nanofluid in the heat exchanger was
analyzed using ANSYS Fluent software. Finally, the CFD results obtained are compared with the
experimental results. Based on the results, it can be observed that the addition of nanoparticles to the
base fluid leads to significant enhancement of heat transfer characteristics.
Keywords: Silica Nano Particles, Double Pipe Heat Exchanger, Nano Fluid, CFD Analysis.
ICMM-2019 104 Book of Abstracts
ICMM: 277 | Dielectric breakdown studies of ZnO-B2O3 glass ceramics mixed
with Ta2O5, Nb2O5 and ZrO2
A. Siva Sesha Reddy* and N. Veeraiah Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar- 522 510, A.P.,
India
*Corresponding author. Mobile: (+91-9494085195); Email: [email protected]
Abstract
Zinc borate glasses mixed with different concentrations of Ta2O5, Nb2O5 and ZrO2 were
crystallized. The prepared samples were characterized by XRD and SEM techniques. The results of
these measurements have indicated that the bulk samples are entrenched with Zn3Ta2O8 [1],
columbite ZnNb2O6 [2]and ZnZrO3 [3] (tetragonal/cubic) crystal phases, respectively, with varying
sizes and concentration depending upon the content of dopant transition metal oxides. The dielectric
breakdown strength (DBS) of these materials was measured in air medium at ambient temperature
along with dielectric properties viz., dielectric constant, loss tangent, electric moduli, electrical
impedance and a.c. conductivity over wide ranges of frequency and temperature. The analysis of the
results has suggested that the glasses doped with 3.0 mol% of Ta2O5 exhibited the highest insulating
strength, while for Nb2O5 and ZrO2 mixed glass ceramics value of DBS is found to increase with
increase of concentration of these two metal oxides. The highest values of DBS were measured to be
18.34, 17.49 and 18.92 kV/cm, respectively, Ta2O5, Nb2O5 and ZrO2 mixed zinc borate glass
ceramics. The reasons for such high DBS were identified and reported. Finally, it is concluded that
these glass ceramics are suitable as insulating layers in the screens of display panels.
ICMM-2019 105 Book of Abstracts
ICMM: 282 | Computational Studies of Distinct Anilines for
ElectroopticalActivity
Marla Prasanti1, Anjali Jha2,Ch. Ravishankar Kumar1* 1Dept. of Physics, GITAM University, Visakhapatnam,530045, India
2Dept. of Chemistry, GITAM University, Visakhapatnam, 530045, India
*Corresponding author. Mobile: (+91) 9246670474; E-mail:[email protected]
Abstract
Significant studies of anilines reported biological activities like oxidation, polymerization,
arylation,alkylation and protonation for conformation, photophysical and electrochemical
studieswith experimental and computational methods like CNDO, MINDO,PCILO that arise due to
charge transfer interaction.These interactions still provide enough scope with analysis using electron
density method to determine physical, chemical and electroopical properties. The present work
attributes family of anilines-aniline(AN),p-chloroaniline(CAN) andp-nitroaniline(NAN) with
experimental studies like FTIR and FT Raman and Computational studies with GaussView 4.1
package using B3LYP –basis set 6-311++** for electrooptical properties. Interpretation of
experimental spectra of FTIR and FT Raman confirm the wave numbers are in specified range
corresponding to functional group and fingerprint regions. Intensity of the wave numbers in Raman
spectra are reduced in comparison with infrared spectra.Molecular structures are visualized with
molecular editor Avogadro for molecular properties. Computational studies are performed for these
optimized structures wherein the computed infrared spectra and Raman spectra are in agreement with
experimental spectra. Studies of charge transfer interactions determine properties like dipole
moment, EHomo, ELumo, energy gap, electrophilicity index, polarization and first order
hyperpolarizability. A feature of work is NAN possess greater tendency in charge transfer interaction
with reduced energy gap, high polarizability and first order hyperpolarizability that enable to form
complex related to optical materials and devices.
Keywords: Electron Density Method, FTIR, FMO and Polarization.
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ICMM-2019 106 Book of Abstracts
ICMM: 285 | Sol-gel synthesis and electrochemical properties of wolframite
FeNbO4
D. Saritha* 1Chaitanya Bharathi Institute of Technology, Department of Chemistry, Hyderabad–500075,
India
* Dr.D.Saritha. Mobile: (+91) 9591908844; E-mail:[email protected]
Abstract
In the current effort, illustrate a different case FeNbO4 with wolframite structure.FeNbO4 was
prepared by sol-gel polymeric precursor method in prospect of estimated prominent specific
capacity. One cause is owing to the reduction of both Fe and Nb. The electrochemical lithium
insertion/extraction studies on wolframite FeNbO4 were conducted with a rate of C/10 in the
potential window of 1.0-3.8V. Ex-situ XRD procedure was used to identify the Structural changes
all the way through insertion/extraction of Lithium. The details of synthesis and lithium insertion
mechanism in FeNbO4 will be discussed.
Keywords: Electrochemical studies; Lithium insertion; electrode material.
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ICMM-2019 107 Book of Abstracts
ICMM: 291 | A Facile synthesis of α - MoO3 using Eggshell Membrane
biotemplatefor Gas Sensing
B. Geeta Rani1, M. Sai Bhargava Reddy, K. Venkatesawara Rao1* 1Center for Nanoscience and Technology, Institute of Science and Technology, JNTU
Hyderabad, India
*Corresponding author. Mobile: (+919440858664); E-mail:[email protected]
Abstract
We report a facile hydrothermal synthesis of α-MoO3 nanorods by employing an eggshell
membrane bio template. The bio template performs dual role as a hard template and as a reducing
agent. The prepared α-MoO3 nanorods were confirmed to have orthorhombic crystal structure by X-
ray diffraction measurement. The morphology studies showed nanorod formation. FTIR study
verified the functional groups present. The bio synthesized α-MoO3 nanorods showed good gas
sensing properties towards NO2 analyte gas. The optimum operating temperature was around 110°C
and the best response was at NO2 concentration of 20ppm. Very low response and recovery was
recorded and also the nanorods showed very good selectivity towards NO2 gas as compared to CO2,
ethanol, isopropanol, methanol, acetone. This study confirms that eco-friendly bio synthesis using
eggshell membrane can be utilized to prepare metal oxides for gas sensing application.
Keywords: MoO3 Nanorods; Eggshell membrane; Gas Sensing, Sensitivity
ICMM-2019 108 Book of Abstracts
ICMM: 292 | Structural,Mechanical and Elecrtical properties of NiO-GDC20
composite anodes for intermediate temperature Solid oxideFuel cells
M.Narsimha Reddy1*, P. Vijaya Bhaskar Rao2 , S.S .Bhoga3 , Mahesh Bansod4 V.Sreehari
babu5 1& 5
Department of Physics, Gurunanak Group of Institutions Technical campus, Ibrahimpatnam
,Hyderabad -501506 ,Telangana, India. 2 Department of Physics, College of Natural and Computational Science, Wollega University,
Nekemte, Ethiopia. 3&4
Department of physics, R.T.M University, Nagpur -440033, Maharashtra, India
*Corresponding author. Mobile: (+91) 9908805575; E-mail:[email protected]
Abstract
Nano CompositesNiO and GDC20 were synthesized as X (NiO) +1-X (Ce0.8Gd0.2O2-δ) where
(X = 40& 45 wt. %) for intermediate or low temperature operating solid oxide fuel cells (SOFC).
For composite anode materials, NiO and GDC20 nano powders were mechanically mixed and
calcined from 600 o
C to 750 o
C. Samples were pelletized and sintered at 1300oC. Systematic study of
structure, purity, phase and structural parameters of anode samples were carried out by XRD and
SEM. Mechanical strength of anode composites were estimated by Vickers micro-hardness and
observed that microhardness of composites are varying from 5.09Gpa to 5.52 Gpa. Electrical
properties D.C conductivity and A.C conductivity of anode composites were computed using four
probe method and impedance analyser respectively. The A.C conductivity and their activation
energies of the anode samples (compositions X = 40& 45 wt.%) were computed from RT to 500 o
C
with the impedance data and the conductivities are found 2.95 x10-3
S/cm and 7.53 x10-3
S/cmrespectively at 500oC (frequency 5 MHz) .The activation energies of A.C conductivity have
observed that decrease with increase in frequencies.
Keywords: SOFC; Anode; nanocomposite. D.C conductivity and A.C conductivity
Acknowledgements:
The authors are thankful to the Department of metallurgical engineering and material science, IIT
Bombay and Professor S.S Bhoga, Department of physics R.T.M University Nagpur for providing
experimental support.
ICMM-2019 109 Book of Abstracts
ICMM: 302| Mapping Solution Loss-Tangent Deposition Rate of MnZn-
Ferrite via Microwave-Assisted Solvothermal Processing
Charu Singh1, R D Raland2, Ranajit Sai2, S A Shivashankar2, Piyush Jaiswal1* 1Centre for Advanced Studies, AKTU, Lucknow, 226031, India
2Centre for Nano Science and Engineering, IISc., Bangalore, 560012, India
*Corresponding author. Mobile: (+91) 7892206971; E-mail: [email protected]
Abstract
Microwave Assisted Solvothermal (MAS) processing offers fast and conformal deposition of
nanocrystalline ferrites films on a Si-chip in a CMOS-compatible manner [1].Briefly, selected
metalorganic precursors, dissolved in a chosen mixture of polar organic solvents, transforms into the
desired nanocrystalline ferrite thin film under the influence of µ-wave irradiation and adheres well to
the substrate submerged in solution. Nanocrystalline manganese zinc ferrite (MZF), deposited via
MAS process,exhibited great potential to meet the requirements of upcoming 5G technology devices
– enhanced Q-factor of an on-chip inductor by 30% at C-band (4-8 GHz) [2]. However, MAS
process, still in its infancy thus has not been thoroughly studied/established parametrically. This lack
of understanding renders suboptimal reproducibility of the physical and magnetic characteristics of
the deposited film. This work explores the effect of precursor solution preparation protocol on the µ-
waveheating mechanism, thus, impacting film deposition rate. Keeping constant deposition
parameters (deposition time, µ-wave power) throughout, a key pre-deposition step, sonication time –
required to dissolve the solute precursors into the polar solvent was systematically varied to
investigate its effect on reproducibility of the deposited film.It was evidenced that the pre-deposition
sonication time of the solution affects the quantity of the volatile solvent in the solution which
subsequently changessolution’s effective tan(δ), thereby affecting film quality as heating rate
changesduring irradiation. To affirm the impact of solution’s tan(δ), solvents with different tan(δ)
were mixed at different proportion before irradiation. The deposition rate varied from 10-120 nm/min
by increasing the sonication time (30-75 min). Moreover, it was evinced that high deposition rate
yields relatively rough and porous film with delamination tendency. Effect of solution loss-tangent
on the deposition rate of ferrite film deposited via MAS process is systematically investigated here
for the first time thus providing a strategy for tuning deposition rate via MAS process in general
while achieving desired film characteristics.
Keywords: Microwave-assisted solvothermal (MAS) process; loss-tangent; sonication time;
deposition rate
ICMM-2019 110 Book of Abstracts
ICMM: 402 | Cryogenic Heat Treatment Process For D2 Steel & M2 Steel
N. Prabhu Kishore MLR Institute of Technology
[email protected], phone: +91 8297346385
Abstract
Cryogenic treatment has been recognized by a few methods for expanding apparatus life of
numerous cutting instrument materials, hence enhancing efficiency essentially. However genuine
components which ensure better instrument execution are as yet questionable. Concentrates on
cryogenically treated HSS instruments demonstrate microstructural changes in material that can
impact device lives. However little research has been done on other cutting apparatus materials.
Cryogenic treatment of carbides presently can't seem to be widely contemplated. This work expects
to contemplate the impact of cryogenic treatment on M2 and D2 steels. It is an extension for subzero
process and It is the latest technology. The objective of this lecture is to explain the basic
transformation of structures and the conversion of retained austenite into martensite and martensite
into tempered martensite which in turn include the properties like longer part life, minimize failure
because of cracking, enhanced warm properties, better electrical properties including less electrical
protection, lessened coefficient of friction, minimal creep and walk, enhanced evenness, and less
demanding machining. This retained austenite into martensite is the most important type of
transformation i.e. transformation requires diffusion for the changes in crystal structure to occur. The
effect of cryogenic process, subzero process, other heat treatment process and the types of heat
treatment furnaces structural changes in heat treatment process are studied.
ICMM-2019 111 Book of Abstracts
ICMM: 403 | Electron Paramagnetic Resonance Studies Of Bi2O3-Li2O-As2O3-
B2O3 Glasses Doped With Vanadium
Kalyani B1,2, Navaneetha Pujari1,2 , Potharaju Krishna 1,, J. Chinna Babu3, Avula Edukondalu1,2*, C P. Vardhania
1Department of Physics, Osmania University, Telangana, 500007 India
2Department of Physics, Osmania University College for Women, Telangana,500095 India
3Department of Physics, Vivekananda Government Degree College, Telangana, 500044 India
*Corresponding author. Mobile: (+91) 9912052007; E-mail:[email protected] (Edukondalu)
Abstract
Electron paramagnetic resonance studies of the xBi2O3-(30-x) Li2O-10AS2O3-58B2O3 (where
x=5, 10, 15, 20 and 25 mole%) containing 2 mole% V2O5 as the paramagnetic probe were carried out
at room temperature. These glasses were prepared using conventional melt quenching. From the EPR
spectra, the spin-Hamiltonian parameters (SHP) of VO2+
ions, dipolar hyperfine parameter (P) and
Fermi contact interaction parameter (K), molecular orbital coefficients (α2 and γ
2), the number of
spins participating in the resonance (N), and susceptibility (χ) have been evaluated. Tetragonality
(Δg||/Δg) of V4+
ion sites exhibited nonlinear variation in the glass composition in all the glasses
studied. Further, the theoretical optical basicity of the glasses has also been evaluated and it is
observed that the changes in optical basicity values are in accordance with the changes in SHPs.
Keywords: Glasses, melt quenching, EPR, spin-Hamiltonian parameters, optical absorption.
ICMM-2019 112 Book of Abstracts
ICMM: 404 | Thermal and Mechanical properties of Glass ionomer cement
G. Patrick1*, Mandava Sridhar2 and J. Kishore Babu3 1,2,3
Department of Physics, Gokaraju Rangaraju Institute of Engineering and Technology,
Bachupally, Hyderabad, 500090, India.
*G. Patrick. Mobile: (+91) 9849896189; E-mail: [email protected]
Abstract
Glass ionomer cement is used as a restorative material. This study evaluated some physical
properties such as specific heat, thermal conductivity, vickers hardness and breaking strength of
Glass ionomer cement (GC Fuji II - Tokyo). The specific heat and thermal conductivity were
determined using the principal of method of mixtures and Lee's apparatus respectively. Micro
hardness measurements were performed using a Vickers cum Brinell hardness tester and
measurement of breaking strength was carried out using a universal testing machine, operated at a
head speed of 10 mm per minute. Glass ionomer cement has several desirable properties such as high
specific heat, low thermal conductivity and thermal diffusivity apart from greater Vickers hardness
and breaking strength. In presence of these advantages it may be a cement of choice for filling of
cavities.
Keywords: Glass ionomer; Thermal conductivity; Vickers hardness
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ICMM-2019 113 Book of Abstracts
ICMM: 409 | Convolutional Neural Networks For Dermis Canker Detection
CH. Kranthi Rekha, Dr. B.L. Prakash 1KL University, Vijayawada,, City, 522502, India
2Geethanjali College of Engineering and Technology, Medchal, 501301, India
*Corresponding Author. +919652307800, [email protected],
+919346314538,[email protected]
Abstract
Dermis canker detection is trivial task for medical practitioner in proper diagnosis. It is also
observed in literature that dermis canker images suffer from textural noise referred to as sparse
convolution noise. It is found that this noise representation and evaluation is a significant problem as
the noise effect should be detectable and solved. So noise removal should be procedural and fast to
implement. Hence its spectral content should be easily evaluated. This can be achieved by
representing the sparse convolution noise by proper and specific random process. In this paper sparse
convolution is described as a random process and represented using Poisson spectrum function.
Sparse noise is also anisotropic in nature. Some of the removal techniques are developed in this
paper. Sparse noise is easily removed by using hybrid method such as order statistics filter combined
with fuzzy neural networks (OSFN). The performance of this method is compared with various
conventional methods such as split Bregman algorithm etc. Peak Signal to noise ratio (PSNR), Mean
Absolute error (MAE), Mean square error (MSE) are the parameters used for testing performance
analysis of the proposed and existing methods.
Deep learning is an approach that makes computer to learn and gain knowledge through
practice. Deep learning also performs classification of data without involvement of human
interpretation. Deep learning is one form of neural network constituting several layers in the
architecture. Convolutional neural network (CNN) is the most commonly used beep learning neural
network. CNN uses large trained data set. CNN plays a significant role in feature extraction and
classification from a very large data set. For medical applications of image processing, it is essential
that the data produced at the system input should be without non-linearity and good in appearance.
Thus the proposed approach consists of the following steps.
1. Collecting database and training the neural network.
2. Pre-processing of data.
3. Feature extraction and classification.
Keywords: Convolutional networks; deep learning; GoogleNet; Artefacts.
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ICMM-2019 114 Book of Abstracts
ICMM: 410 | Additive Manufacturing for VADs and TAHs - a Review
Anil Kumar Puppala1, Venkateshwarlu Sonnati2* 1Geethanjali College of Engineering and Technology, Hyderabad, 501301,India
2CVR College of Engineering, Ibrahimpatnam, 501510, India
*Corresponding author. Mobile: (+91) 9160624935; E-mail: [email protected]
Abstract
Heart disease or advanced heart failures is one of the serious causes of death. Due to
availability of low volumes of donor hearts, there has been an ongoing development of Mechanical
Circulatory Support (MCS): Ventricular Assist Devices (VADs) and total heart replacement by Total
Artificial Hearts (TAHs) for over 60 years [1].
Mechanical circulatory frameworks had seen three phases of advancement. The first
generation of MCS devices were largely mechanical devices and had pulsatility in their action, but
were highly cumbersome, unreliable due to small fatigue cracks and required an external pneumatic
power and control. Smaller and continuous flow devices are the second generation MCS devices.
Because of compact sizing they were suitable for implantations and were more durable than the first
generation devices. Problems like pump thrombosis prompted the development of non-contact, type
of devices leading to the development of third generation devices, where the pumps magnetically
levitate over a magnetic field and have no contact with the blood. Manufacturing of these
electromagnetic devices for implantation has to adhere to the constraints of space and weight [2-3].
With the advent of new Bio-materials, additive manufacturing is reportedly playing a significant role
in biomedical industry such as anatomical models for surgery training/planning, rehabilitation,
dentistry, customized implants, drug delivery devices, tissue engineering, and organ printing [4].
Cardiologists and Cardio surgeons reported complex and patient specific interventional and surgical
planning with the help of additive manufacturing techniques [5]. Additive manufacturing reported for
electromagnetic and electronic components had yielded considerably good performance [6]. The
authors had mathematically implemented a control algorithm for introducing pulsatile flow by
modulating the speed of a BLDC motor for VADs and TAHs. This paper explores the feasibility of
constructing VADs and TAHs using additive manufacturing techniques.
Keywords: Ventricular Assist Devices; Total Artificial Hearts, Additive Manufacturing.
Acknowledgements This work is funded by Jawaharlal Nehru Technological University Hyderabad under TEQIP – III
scheme.
ICMM-2019 115 Book of Abstracts
ICMM: 411 | Onset of thermovibrational convection in a Nanofluid saturated
porousmedium
R.K. Brinda*
Bharathiar University, Coimbatore, 641046, India
*Corresponding author. Mobile: (+91) 9486292923; E-mail:[email protected]
Abstract
This paper addresses thermovibrational convection in a thin porous layer permeated by a nanofluid.
The criteria for the onset of convection are found when the layer is heated from the bottom . A
stability analysis based on the method of small perturbations is performed using normal mode
assumption. The critical values of the governing parameters are found with the help of the Mathieu
functions. The emerging instabilities of synchronous and subharmonic types and the transition
between them are examined.
Keywords: Convection; Porous medium; Instability.
ICMM-2019 116 Book of Abstracts
ICMM: 413 | Graphene reinforces Asphalt- Doubles durability of Road
B.Jyothirmai1*, M.Haritha Kiranmai2, K.Vagdevi3
1,3. Associate Professor,Gokaraju Rangaraju Institute of Engineering &Technology,
Hyderabad -500043, India.
2.AssistantProfessor,Gokaraju Rangaraju Institute of Engineering &Technology,
Hyderabad 500043, India
*Corresponding Author. Mobile: (+91) 8885051534; Email:[email protected]
Abstract
Abstract. Graphene and its composites are now reinforced with asphalt a pavement material to
increase durability of roads. The present review paper focuses on improved performance of asphalt
material when mixed with graphene, reduced graphene oxide and graphene nanoplatelets. Graphene
is the world’s versatile wonder two-dimensional material with countless multifunctional applications
in electrical, physical, biomedical, chemical and in mechanical fields. High economical expenditure
in roads maintenance in all climatic conditions, high traffic loads, resistance to wear and tear are the
challenges for construction engineers. The objective of the paper is to bring awareness and
understanding of increased performance of asphalt when reinforced with graphene. Various
parameters like aging resistance, marshall stability and high temperature stability were reviewed in
the present study.
Keywords: Graphene, Asphalt, Marshall stability, Aging resistance
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ICMM-2019 117 Book of Abstracts
ICMM: 421 | Effect of Li2O on electron paramagnetic resonance and
opticalabsorption studies of Cu2+ ions in arsenate boro-tellurite glasses
Navaneetha Pujari1,2*, Kalyani B1,2, Potharaju Krishna 1, J. Chinna Babu3, C P. Vardhani1 1Department of Physics, Osmania University, Telangana, 500007 India
2Department of Physics, Osmania University College for Women, Telangana, 500095 India
3Department of Physics, Vivekananda Government Degree College, Telangana, 500044 India
*Corresponding author. Mobile: (+91) 9440899208; E-mail: [email protected]
Abstract
Electron paramagnetic resonance and optical absorption studies of xLi2O-(30-x)TeO2-
10As2O3-60B2O3 glasses were made by introducing Cu2+
as spin probe. The EPR spectra of Cu2+
in
all the glass samples recorded in the X-band frequency have similar spectral features. The variation
in glass composition influences the spin Hamiltonian parameters calculated from the spectra. The
spin Hamiltonian parameters indicate that the Cu2+
ions are coordinated with six ligand atoms in a
distorted octahedron elongated along one of the axes and the ground state of the Cu2+
is dx2−y2 orbital.
The optical absorption spectra exhibited a broadband corresponding to d-d transition bands of Cu2+
ion. The values of bonding parameters indicate a covalent nature of the in-plane σ bonding and pure
ionic nature of the in-plane and out-of-plane π bonding. The theoretical optical basicity parameter
values were evaluated, and it was observed that the value of Γσ increases, whereas Γπ decreases with
the increase in optical basicity.
Keywords: Glass; Copper ion; Spin-Hamiltonian; Optical absorption; EPR studies
ICMM-2019 118 Book of Abstracts
ICMM: 425 | XRD Investigation on Heat Treatment of High Chromium White
Cast Irons
Mbulelo Nqwase, Xiaowei Pan* Metallurgy Department, University of Johannesburg, Johannesburg, 2194, South Africa
*Mobile (+27) 083 456 3514, Email: [email protected]
Abstract
The properties of hypoeutectic iron of HCWCI containing 25 wt. %Cr-2.5 wt. %C were
investigated after destabilisation heat treatments, cooling (slow and fast cooling) to ambient
temperatures, their influence on the structure and hardness was investigated using X-ray diffraction,
element distribution analysis and hardness tests with 28 references. The experimental results show
that appropriate heat treatments contribute to a significant improvement on the mechanical properties
of selected alloy of HCWCI. The results are discussed in terms of the change in volume fraction of
retained austenite phase at the different destabilisation heat treatment temperatures.
Keywords: white cast iron; high chromium white cast irons; (Cr,Fe)7C3 carbides; secondary (Cr,Fe)23C6
carbides.
Reference
1. F. Nyokong and X. Pan, “A Review on Usage of High Chrome White Cast Irons in South
Africa,” Tamil Nadu, India, 2019.
2. T. X. L. D. Y. H. B. a. D. K. Chung R. J., “Microstructure Refinement of Hypereutectic
High Chromium Cast Irons Using Hard Carbide-Forming Elements for Improved Wear
Resistance,” Science Direct, vol. 301, pp. 695-706, 2013.
3. C. Mahlami and X. Pan, “Main challenges and developments of high manganses steel
castings based on service life,” 71st World Foundry Congress, Bilbao, Spain, 2014.
4. C. Mahlami and X. Pan, “An overview of high manganese steel casting,” 71st World
Foundry Congress Bilbao, Spain, 2014.
5. G. Nelson, “Influence of Microstructure on the Corrosion and Wear Mechanisms of High
Chromium White Irons in Highly Caustic Solutions,” Dissertation / School of Mechanical
Engineering, Adelaide, South Australia , 2010.
6. C.S Mahlami; X Pan, Mechanical properties and microstructure evaluation of manganese steel alloyed with vanadium, FCSPTC international conference, Andhra Pradesh, India, 2017, pp227-236.
ICMM-2019 119 Book of Abstracts
ICMM: 428 | An Experimental Study on the Ballistic Behavior of a High
Strength Low Alloy Steel against High Hardness Steel Projectiles
Pradipta Kumar Jena1*, K Siva Kumar 1
1Defence Metallurgical Research Laboratory, Hyderabad-500058, India
*Corresponding author. Mobile: (+91) 7382772801; E-mail:[email protected]
Abstract
Armour materials are important in defence applications for providing protection against different
threats. Quenched and tempered high strength steels are the primary choice for armour in battle tanks
and armoured vehicles. Understanding the penetration mechanism of projectiles in to the target plate
during ballistic impact plays a crucial role in the design and development of any armour. This paper
presents the ballistic performance of high strength low alloy armour steel against high hardness steel
projectiles of 7.62 mm and 12.7 mm caliber at normal angle of impact.The deformation mechanism
of the target material against both type of projectiles have been analyzed. Main interests are focused
on the microscopic observations and micro-hardness measurements adjacent to the crater holes
formed by the impact of both types of projectiles. It is observed that the extent of material
deformation increases with higher caliber of the projectile. Microstructural analysis of the crater
region exhibits material deformation along with shear band induced cracking. The ballistic behavior
of the steel is compared with the ballistic behavior of rolled homogeneous armour steel.
Keywords: High strength low alloy steel; Ballistic evaluation; Adiabatic Shear bands.
Acknowledgements
The authors wish to acknowledge DRDO, Government of India for financial support and The
Director, DMRL for his encouragements to carry out this work.
ICMM-2019 120 Book of Abstracts
ICMM: 502 | Application and Evaluation of Properties of Ethylene
AcrylicAcid Co-Polymer on Cotton Fabrics using Exhaust and Pad-Dry-Cure
Finishing Methods
Dr. Gurumurthy.B. R1*
1 Assosicate Professor- Textile Technology, #235/2, 2
nd D cross, 6
th Main, 3
rd Block, 3
rd
Stage, Basaveshwaranagar, Bangalore – 560079, Karnataka, India
*Corresponding author. Mobile: (+91) 9686004195; E-mail:[email protected]
Abstract
Ethylene acrylic acid co-polymer is a water-based polymer coating solution is used on cotton
bleached fabric [Fig 1]. The polymer coating solution is applied by roller method as well as by
exhaust method. The developed fabric is then cured and dried in an oven with a temperature ranging
from 60-90oC.Fabric stiffness properties is an important property that influence the drape of the
fabric. In this research work, the scanning electron micrographs of coated fabrics are captured to
ascertain the changes that occur after coating with ethylene acrylic acid co-polymer solution.
Thermal properties of these coated fabrics are analyzed using their DSC thermographs. The
composition graphs and finger print output of ethylene acrylic acid polymer coating is also analyzed
using FTIR results. The results of mechanical fabric stiffness properties of coated fabrics show
increased stiffness and good thermal properties in fabric after application of coating solution.
Fig 1: Materials used for surface treatment of cotton fabrics using ethylene acrylic acid co-polymer solution
KEYWORDS: Functional Textiles, Ethylene acrylic acid co-polymer, Stiffness property, Thermal
properties of fabrics, DSC thermographs
Ple
ICMM-2019 121 Book of Abstracts
ICMM: 508 | Structural and optical properties of BaTiO3 Nano particles
E. Janardhan1, M. Maheshwar Reddy1, G. Raj Kumar1 and M. Jaipal Reddy*2
1Sreenidhi Institute of Science and Technology, Yamnampet, Ghatkesar, Hyderabad-501301
Telangana, India 2Palamuru University Bandameedipally, Mahbubnagar-509001, Telangana, India.
*Corresponding author. Mobile: (+91) 9948450376; E-mail: [email protected]
Abstract
The rapid growth of the electronic component industry has led to a demand for Miniature multilayer
ceramic capacitor (MLCC), where BaTiO3 is used due to its superior frequency characteristics,
higher reliability, high breakdown voltage, excellent volumetric efficiency of the capacitance and
reduced cost. MLCCs with a dielectric thickness of 2 µm have already been commercialized but the
next generation components demand a thickness of 1 µm. Such requirement demands dielectric
powders with uniform composition and size distribution, and weak agglomeration to allow low
temperature sintering with minimum grain growth. Various methods of preparation of BaTiO3 are
available in the literature.
The Solid state reaction of BaTiO3 formation from a mechanically Activated BaO-TiO2
system has been investigated. A simple soft chemical method of synthesizing barium titanate nano
powders is described here, which is simple and cost effective, where titanium dioxide was taken as a
source of titanium, and BaO was obtained by Solution combustion synthesis of Ba(NO3)2 and
CH4N2O (as a fuel). An equi molar mixture of BaO and TiO2 powders was activated in a planetary
ball mill in a continual regime for 0, 30, and 90 min, and treated at a speed of 300rpm. The effect of
the milling on the phase formation was investigated by XRD method, EDAX, Particle Size Analyzer,
SEM, UV Visible Spectroscopy and Raman Spectroscopy.
Keywords: Ba(NO3)2 and CH4N2O (as a fuel), XRD, EDAX, SEM, UV Visible Spectroscopy and
Raman Spectroscopy, ball milling method.
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presenting
author.
ICMM-2019 122 Book of Abstracts
ICMM: 512 | Deflection and Buckling Analysis of Laminated Hybrid
Composite Plates
D. Dhanunjaya Raju1*, Shashank2 1Assistant Professor, Department of Mechanical Engineering, Sri Vasavi Engineering
College (A), Pedatadepalli, Tadepalligudem, 534101, India 2M.Tech Student, Department of Mechanical Engineering, Godavari Institute of
Engineering and Technology(A), Rajahmundry, 533296, India
*Corresponding author. Mobile: (+91) 739694591
Email:[email protected]
Abstract
Composite Materials are most commonly used in aerospace applications due to its light
weight and high strength. Manufacturing and testing of this composite material are expensive. The
analytical methods are best alternative for this problem. In this analysis simply supported composite
plate analytical procedure was implemented to evaluate the deflections and stresses. Composites are
good at tensile properties and weak in compressive properties. So, there is a need in evaluating the
buckling strength of the composite plate. The buckling strength of the composite plate was evaluated
by varying the lamination orientation and lamination sequence. In this analysis Graphite/epoxy,
Glass/ epoxy and Kevlar Epoxy lamina properties are considered. Lamination scheme and fiber
orientation play a vital role on deflection and stresses. Buckling load is maximum when the graphite/
epoxy layers are at the middle. A parametric study was carried to know the bending and buckling
behaviours of the Hybrid composite plates
Keywords: Simply supported Plate; Laminated Composites; hybrid Composites; Static Analysis;
Bucking analysis
ICMM-2019 123 Book of Abstracts
ICMM: 513 | Static and Dynamic Analysis of Quasi Isotropic CompositePlates
Excited by Piezoelectric Actuators with Variable ThicknessRatios
D. Dhanunjaya Raju1*, V.V. Subba Rao2 1Full Time Ph.D. Research Scholar, Department of Mechanical Engineering, UCEK,
Jawaharlal NehruTechnological University Kakinada, Kakinada, 533003, India 2Registrar & Professor, Department of Mechanical Engineering, UCEK, Jawaharlal
Nehru Technological University Kakinada, Kakinada, 533003, India
*Corresponding author. Mobile: (+91) 9030138953; E-mail:[email protected]
Abstract
Piezoelectric materials are mostly used as sensors and actuators, due to the quick response property,
excellent coupling effects and these are highly embeddable. Smart structures can control the
deflections and vibrations as per design criteria without increasing the density of the composite plate.
In this study, Quasi - Isotropic laminated hybrid composite plates are excited by the embedded
piezoelectric actuators on both sides of the composite plate. An analytical formulation was developed
to evaluate the deflections and Vibration amplitudes under static, dynamic loading conditionsand the
results are validated with the published results.The deflections and vibration amplitudes are
evaluated by varying the size,location and thickness of the piezoelectric Actuator and observed that
the deflections are varying linearly with the size of the piezoelectric actuator and applied voltage.
Variations of the thickness ratio of the plate and piezoelectric actuators play a vital role.A parametric
study was carried to know the static and dynamic responses of quasi-isotropic laminated hybrid
composite plates
Keywords: Simply Supported plates; piezoelectric actuators; deflection analysis; vibration analysis,
Quasi Isotropic plates; Variable Thicknesses Ratios.
Please insert photograph of the presenting author.
ICMM-2019 124 Book of Abstracts
ICMM: 516 | A Review on Formability Tests for Sheet Metal Forming
Operations
A.C. Sekhara Reddy1*, S. Rajesham2, P. Ravinder Reddy3
1Research Scholar, Osmania University, Hyderabad,500013, India
2Dept. of Mechanical Engineering, RGUKT-Basar, 504107,Telangana, India
3Dept. of Mechanical Engineering, CBIT, Hyderabad, 500075, Telangana, India
*Corresponding author. Mobile: (+91) 9963005134; E-mail: [email protected]
Abstract
The knowledge of mechanical behaviour of sheet metal such as formability in stamping operations is
very much essential for quality manufacture of articles having wide applications in automobile,
beverage, aerospace, kitchenware etc. Different tests are available and proper selection of formability
tests matching with the component to be produced is very much essential. By thorough
understanding of all the available tests helps the craftsman to reduce production time and cost
involved in it by reducing the rejections. This paper provides an insight about different formability
tests applicable to sheet metal forming using aluminium and other materials ductile materials.
Keywords:Deep Drawing; LDH test; Erichsen test; Limiting drawing ratio; Olsen test
Acknowledgements The author would like to thank Dr. Suresh Akella, Principal and the management of Sreyas Institute
of Engineering and Technology for supporting in creating the research facilities for metal forming
tests in the Department laboratories.
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author.
ICMM-2019 125 Book of Abstracts
ICMM: 523 | Polypyrrole/NiO hybrid nanocomposites: Structural,
morphological, optical and electrical studies for optoelectronic device
applications
Hajeebaba K Inamdar1,2, Sasikala. M3, M.V.N. Ambika Prasad1*
1Department of PG Studies and Research in Physics, Gulbarga University Gulbarga-585105, India.
2Department of Physics, J.B Institute of Engineering and Technology,R.R Dist, Hyderabad-
500075. 2Department of EEE, Godutai Womens f Engineering College, Sharana nagar, Kalaburagi, India 585103
* Corresponding author. Tel.: +91 9448405817.
E-mail:[email protected] ,[email protected] and [email protected]
Abstract
Polypyrrole (PPy)/nickel oxide (NiO) hybrid nanocomposites (NCs) were synthesized by
means of in-situ polymerization course. The Ppy/NiO mixture NCs were studied for structural,
morphological, optical and electrical investigation. The basic and optoelectronic properties of
Ppy/NiO hybrid NCs are very unique in relation to those of pure PPy and NiO nanoparticles (NPs),
which were ascribed to the strong cooperation between the PPy and NiO NPs. The XRD profile
demonstrates that wide peak of PPy getting to be weaker on enhancing the NiO NPs concentration in
the Ppy/NiO hybrid NCs.Similarly, the diffraction peaks of NiO NPs in Ppy/NiO (10-50 wt %) NCs
were found to shift towardslower 2θ values.The diffuse reflectance spectral studies revealed that
there is an increase in energy band gap with increase of NiO NPs concentration in Ppy matrix. FTIR
spectra of Ppy/NiO hybrid NCs, uncovered that the key absorption at 1204 cm-1
and 1559 cm-1
are
influenced by the existence of NiO NPs in pure Ppy and get shifted to 1216 cm-1
and 1570 cm-1
respectively and demonstrates, in addition of NiO NPs in the Ppy/NiO hybrid NCs. The
morphological studies that with increase in NiO NPs concentrations, there is an increase of NiO
deposition on Ppy matrix. The photoluminescence (PL) studies revealed that the prepared NCs
exhibit blue color emission. The average correlated color temperature (CCT) value was found to be
around ~ 9240 K which indicates the prepared NCs can be used for as coating material in cool light
emitting diodes (LEDs). Further, the room temperature (RT) AC electrical conductivity is observed
to be enhanced from 1 x10-4
to 5 x 10-4
(S/cm)-1
as the NiO NPs concentration increased from 10 to
50 wt% in the Ppy/NiO hybrid NCs. The results clearly indicate that the present NCs were
effectively used in the fabrication of electrochemical storage and LED device applications.
Keywords: Polypyrrole; nanocomposites; diffuse reflectance; color diagrams; TEM
ICMM-2019 126 Book of Abstracts
ICMM: 524 | Green fabrication of Co3O4/Polypyrrole nanocomposites:
Structural, Morphological and DC conductivity studies
Hajeebaba K Inamdar1,2, Sasikala. M3, M.V.N. Ambika Prasad1*
1Department of PG Studies and Research in Physics, Gulbarga University Gulbarga-585105, India. 2
Department of Physics, J.B Institute of Engineering and Technology,R.R Dist, Hyderabad-
500075. 2 Department of EEE, Godutai Engineering College for Women,, Sharana nagar, Kalaburagi, India 585104
* Corresponding author. Tel.: +91 9448405817.
E-mail:[email protected] , [email protected] [email protected]
Abstract
Polypyrrole (PPy)/Cobalt oxide (Co3O4) hybrid nanocomposites (NCs) were synthesized by
means of in-situ polymerization using Cobalt nitrate as metal precursor, Polypyrrole as polymerizing
agent and Aloe-Vera (A.V.) gel as a fuel. The prepared nano composites were characterized by
different characterization techniques such as Powder XRD, SEM and TEM. The electrical properties
of PPy/Co3O4 hybrid NCs are very unique in comparison to the pure phases, PPy and Co3O4
nanoparticles (NPs), which were ascribed to the interaction between the PPy and Co3O4 nano
particles. DC conductivity is observed to be enhanced as the Co3O4 NPs concentration increased
from 10 to 50 wt% in the hybrid NCs at the different temperature. From the obtained measurements
and data, the synthesized hybrid nano composites may be used in electronic device applications such
as LED devices, solar cells and optical devices.
Keywords: Polypyrrole; nanocomposites; DC conductivity; SEM; TEM
ICMM-2019 127 Book of Abstracts
ICMM: 526 | Green Synthesis of Co3O4/Polyaniline nanocomposites:
Structural, Morphological and conductivity studies
J. Venkatreddy1,4, Narsappa6, Pallati Naresh3, B Lavanya5, M.V.N. Ambika Prasad7,
kamatam Hariprasad2, N.Sundraganeshan4 , Hajeebaba K Inamdar1,*
1. Department of H&S, J.B Institute of Engineering and Technology, R.R Dist, Hyderabad-500075.
2. Department of H&S, Institute of aeronautical Engineering, R.R Dist, Hyderabad-500043.
3. Departments of Physics, University College of Science, Saifabad, Osmania University, Hyderabad-500004
4. Departments of Physics, Annamalai University, Chidambaram (TN) -608002
5. Department of H&S, Anurag Group of Institutions, Medchal Dist, Hyderabad-500 088.
6. Department of ECM, J.B Institute of Engineering and Technology, R.R Dist, Hyderabad-500075.
7. Department of P.G Studies and Research in Physics, Gulbarga University, Gulbarga-585105, India.
* Corresponding author. Tel.: +91 9740441073. E-mail address:[email protected]
Abstract
Polyaniline (PANI)/Cobalt oxide (Co3O4) hybrid nanocomposites (NCs) were synthesized by
means of in-situ polymerization using Cobalt nitrate as metal precursor, Polyaniline as polymerizing
agent and Aloe-Vera (A.V.) gel as a fuel. The prepared nano composites were characterized by
different characterization techniques such as Powder XRD, SEM and TEM. The electrical properties
of PANI /Co3O4 hybrid NCs are very unique in comparison to the pure phases, PANI and Co3O4
nanoparticles (NPs), which were ascribed to the interaction between the PANI and Co3O4 nano
particles. DC conductivity is observed to be enhanced as the Co3O4 NPs concentration increased
from 10 to 50 wt% in the hybrid NCs at the different temperature. From the obtained measurements
and data, the synthesized hybrid nano composites may be used in electronic device applications such
as LED devices, solar cells and optical devices.
Keywords: Polyaniline; nanocomposites; DC conductivity; SEM; TEM
ICMM-2019 128 Book of Abstracts
ICMM: 527 | Comparative studies of self-compacting geopolymer concrete
andconventional concrete subjected to corrosion and chloride ingression Krishneswar Ramineni1*, Manikanteswar Ramineni2, Mahesh Reddy Y3, Dr. BNarendra
Kumar4 1Graduate Student, Texas A&M university, College station,77840,USA
2EIT,College station,77840, USA
3Graduate engineer, Hyderabad, 500072, India
4Professor,VNRVJIET, Hyderabad, 500090, India
*Corresponding author. Mobile: (+91) 8801132826; E-mail: [email protected]
Abstract
Geopolymer concrete is a special concrete developed to reduce the carbon-dioxide emission
and to provide a solution for industrial waste. The Geopolymer Concrete consist of industrial by-
products (which contains more Silica and Alumina) which are activated with the help of Alkaline
solution (combination of sodium hydroxide & sodium silicate or potassium hydroxide & potassium
silicate). The high viscosity nature of Geopolymer Concrete had the ability to fail due to lack of
compaction. In improvising the issue, Self-Compacting Geopolymer Concrete (SCGPC) has been
introduced. The SCGPC doesn't require any additional compaction, it can flow and gets compacted
by its own weight. This paper presents an experimental investigation aimed at measuring chemical
durability of self-compacting geopolymer concrete (SCGPC) which is developed and cured at
ambient conditions. For that purpose, the SCGPC specimens are subjected to corrosion and chloride
ingression by conducting accelerated corrosion test (ACT) and rapid chloride penetration test
(RCPT). In the present study, the SCGPC is developed by using Fly ash, GGBFS activated with
alkaline solution as a cement substitute and the tests results are compared with conventional
concrete. From experimental results, it is found that SCGPC is has better resistance against corrosion
and chloride ingression than conventional concrete proving that it can be a better replacement for
present concrete materials in the construction industry.
Keywords:alkaline activated; corrosion test; self-compacting.
Acknowledgements
I would like thank VNRVJIET civil engineering department for the infrastructure they provided for
the project and would like to express my gratitude to Sri M.Siva Prasad for helping us in testing and
my project teammates Vooha Chowdary C and Abhilash K for their help in project.
ICMM-2019 129 Book of Abstracts
ICMM: 532| Thermal degradation study for manufacturability of
Polyetheretherketone/Hydroxyapatite bone implant composite
Sivakoti Shyam Kumar1*, Rahul Chhibber2, S. Saptagiri3 1Faculty of Mechanical Engineering, Geethanjali College of Engineering and
Technology, Hyderabad, 501301, India 2Faculty of Mechanical Engineering, Indian Institute of Technology, Jodhpur,Karwar,
342037, India 3Faculty of Mechanical Engineering, Geethanjali College of Engineering and
Technology, Hyderabad, 501301, India
*Corresponding author. Mobile: (+91) 9996016889; E-mail: [email protected]
Abstract
Polyetheretherketone (PEEK) is a semi-crystalline, high temperature resistant, FDA approved
polymer, attracted many engineering and medical research practitioners due to its excellent
mechanical and biological properties. PEEK has comparable mechanical properties to natural bone
and its polymeric constituent Collagen [1]. PEEK has been identified as one of the high
temperature(Tm= 373oC) polymers with excellent thermal, chemical and radiological inertness. High
temperature resistance, good Young’s modulus and biological inertness of PEEK attract it to be a
prominent bone implant material. Metallic bone implants have been surpassed slowly by PEEK
composites. However, PEEK is found to be inferior in rigidity to natural bone due to its limited
Young’s modulus. Hydroxyapatite (Ca10(PO4)6(OH)2), a bone inductive [2] and ceramic
reinforcement is extracted from egg shells [2,3] by thermal processing to strengthen PEEK matrix of
the proposed bone composite. Upon several delimiting studies, ceramic constituent is limited to 40%
by weight. The combination of constituents being newer, an exhaustive study on thermal stability of
the composite has been carried out at ARCI, IICT and KELVN Hyderabad. Thermal gravimetric
analysis (TGA), Derivative thermo gravimetric analysis (DTG) and Differential Scanning
Calorimetry (DSC) were the sources of analysis. TGA, DTG and DSC have been used to evaluate
percentage of weight loss, peak degradation temperature and melting temperature respectively.
Degradation of the composite was found to increase with the percentage of PEEK in the composite.
The study has been conducted beyond the melting temperature of the PEEK and up to 600oC.
Degradation of the composite has been showing an inverse relation with rate of heating. Maximum
percentage of mass degradation 28.7% of the total weight was recorded in structurally superior
PEEK/HA 80/20 composite at a rate of heating 10C/ min as against 33.9% in pure PEEK.
Keywords: Hydroxyapatite; PEEK; Bone implants;
Acknowledgements
I would like to express my deep gratitude toDr. Roy Johnson, Scientist-G and Associate Director,
ARCI –Hyderabad and Dr Y Srinivasa Rao, Scientist F, Centre for ceramic processing, ARCI-
Hyderabad for their timely help in my active research on this topic.
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author.
ICMM-2019 130 Book of Abstracts
ICMM: 534 | Studies on mass attenuation coefficient, effective atomic
number andelectron density of some low Z materials in the energy range
0.122 to 1.330 MeV
Vishwadip V. Khosepatil, Sagar S. Ghuge, Ruchita P. Solanke, Sanjay R. Dipke, Pravina P. Pawar
Department of Physics, Dr.Babasaheb Ambedkar Marathwada University, Aurangabad:
431 004. India.
*Vishwadip V. Khosepatil. Mobile: (+91) 9011876232; E-mail:
Abstract
The total mass attenuation coefficients of some low Z materials, such as Polymethyl
pentane(C6H12), Poly (phenylene oxide)(C8H8O), Poly(propyl methacrylate)(C7H12O2), Poly(ethylene
isophthalate)(C10H8O4), Poly(butylene terephthalate)(C12H12O4), Poly(ether sulphone)(C12H8O3)
were measured at 122, 356, 511, 662, 1170, 1275 and 1330 keV photon energies using a well-
collimated narrow beam good geometry set-up. The gamma -rays were detected using NaI (Tl)
scintillation detection system with a resolution of 10.2% at 662keV.The attenuation coefficient data
were then used to obtain the effective atomic numbers (Zeff) and effective electron densities (Neff) of
low Z materials. It was observed that the effective atomic number (Zeff) and effective electron
densities (Neff) tend to be almost constant as a function of gamma-ray energy. The results show that,
the experimental values of mass attenuation coefficients, effective atomic numbers and effective
electron densities are in good agreement with the theoretical values with less than 1% error.
Keywords: Mass attenuation coefficients; Atomic cross-section; Electronic cross-section; effective
atomic number; Effective electron density, scintillation detection system.
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of the
presenting
author.
ICMM-2019 131 Book of Abstracts
ICMM: 536 | Influence of Elevated Temperature on Flextural Strength of
Polysialate Composite
S. Sapthagiri1*, Sivakoti Shyam Kumar2 1Faculty of Mechanical Engineering, Geethanjali College of Engineering and Technology,
Hyderabad, 501301, India 2Faculty of Mechanical Engineering, Geethanjali College of Engineering and Technology,
Hyderabad, 501301, India
*Corresponding author. Mobile: (+91) 9989872620; E-mail: [email protected]
Abstract
Polysialate composites are a new class of high performance materials due to their excellent
inherent high temperature resistance, low density and ease of manufacturing. These properties also
suggest that polysialate composites have a high temperature resistance, environmental friendliness,
light weight suitable for structures of both aerospace and motorsport applications. The foremost
requirements of these applications are high temperature resistance, low density, good structural
properties and ability to form complex geometries at low lead times. The polysialate matrix based on
polymineral resins, has ease of manufacturing using conventional polymer composite lay-up, and
allowing complex geometries to be fabricated. The most widely used polysialate matrix materials
reinforced with silicon carbide fibres material havebeen studied in this work for their flexural
strength over a representative temperature range. The three point bending test simulation analyses
were performed according to ASTM standard on these polysialate composites. The simulation
analysis results revealed that flexural strength of polysialate composites were stable over a
representative temperature range of 200OC to 600
OC.
Keywords: Polysialate composites; flexural strength; three point bending test.
Acknowledgements
We heartily thank the management of Geethanjali College of Engineering and Technology,
Hyderabad for their cooperation and support related to this research work as well as technical staff
members who are directly and indirectly extended help to carry out experimental work.
ICMM-2019 132 Book of Abstracts
ICMM: 537 | Thermal and Elastic Properties of Mixed Alkali Tungsten
Tellurite Glasses
Avula Edukondalu1,2*, Salavadi Stalin1, Ch. Srinivasu3, Syed Rahman1, K. Siva
Kumar1 1Department of Physics, University College of Science, Osmania University, Hyderabad, India
2Department of Physics, University College for Women, Koti, Hyderabad, India
3Department of P&C, MGIT, Gandipet, Hyderabad, India.
*Corresponding author. Mobile: (+91) 9912052007; E-mail:[email protected] (Edukondalu)
Abstract
Glass with composition xLi2O-(30-x)K2O-10WO3-60TeO2 with 5 ≤ x ≤25 have been
prepared by conventional melt quenching technique. The amorphous phase of the prepared glass
samples was conformed from their X-ray diffraction and SEM studies. In the present work, the
mixed alkali effect (MAE) has been investigated in the above glass system through density and
modulated DSC studies. The density and glass transition temperature of the present gasses varies
non-linearly, the exhibiting the mixed alkali effect. The parameters glass transition temperature (Tg),
changing in the transition temperature (ΔTg) and specific heat capacity difference (ΔCp) in the glass
transition temperature range was measured. The elastic moduli and Debye temperature were
calculated in terms of Makishima–Mackenzie model.
Keywords: Mixed alkali effect, tungsten tellurite glasses, density, glass transition temperature,
Makishima–Mackenzie model.
ICMM-2019 133 Book of Abstracts
ICMM: 543 | Electrical Properties of the Ni/ polyvinyl alcohol/n-Si
heterojunction with polymer interlayer
V. Manjunath1*, G. Manjunatha2, and P. Ananda2 1Department of Physics, Sri PadmavatiMahilaVisvavidyalayam (Women’s University), Tirupati, A.P, India-
517502 2Department of Physics, Madanapalle Institute of Technology and Science, A.P, India-517325
Corresponding Author: [email protected]
Abstract
The Electrical properties and transport mechanism of the Ni/polyvinyl alcohol (PVA)/n-Si
metal-insulator-semiconductor (MIS) type heterojunction was investigated by the I-V measurements
at room temperature. The evaluated result of MIS heterojunction has a higher rectification ratio with
low leakage current compared with Ni/n-Si metal-semiconductor (MS) junction. The calculated
barrier height of MIS type heterojunction [0.80 eV (I-V)/0.88 eV (Cheung’s)/0.81 eV (Norde’s)]
increases compared with the MS junction [0.70 eV (I-V)/0.74 eV (Cheung’s)/0.72 eV (Norde’s)].
The ideality factor values were evaluated using thermionic emission theory and were found to be
1.09 for the MS junction and 1.35 for the MIS type heterojunction. The series resistance (RS),
ideality factor values extracted for the MS junction and MIS type heterojunction using Cheung's
functions were calculated to be 171 Ω, 1.24 and 3345 Ω, 1.43. The series resistance values were also
extracted from H (I) versus I plot and were found to be 459 Ω for MS junction and 15669 Ω for the
MIS heterojunction. Furthermore, the surface potential versus forward voltage curves of the MIS
heterojunction yielded a Schottky barrier height of 0.77 eV which is higher than 0.68 eV attained for
the MS junction. In conclusion, it was elucidated that the intentionally deposited PVA(Polymer)
insulating layer at the interface of Ni/n-Si it is influenced the electrical properties of the fabricated
Ni/PVA/n-Si MIS type heterojunction.
Keywords: PVA insulating layer; heterojunction Barrier height; Ideality factor; Series resistance;
Surface potential.
ICMM-2019 134 Book of Abstracts
ICMM: 546 | Investigation on the microstructure and mechanical properties
of W-Cu composites prepared by sintering and infiltration
U. Ravi Kiran1, G. Prabhu2, T.K. Nandy3 1 Scientist-E, DMRL, Hyderabad, 500058, India
2Scientist-E, DMRL, Hyderabad, 500058, India
2Scientist-H, DMRL, Hyderabad, 500058, India
*Corresponding author. Mobile: (+91) 9490956731; E-mail:[email protected]
Abstract
W–Cu composites are multi-functional materials which are widely used in arcing tips, resistance
welding electrodes, electrode materials for electro discharge machining, heat sink materials for
microelectronics packaging, power generation systems and defence applications such as Jet vanes
and nozzles in missiles. These groups of composites combine the high hardness, hot strength and
wear resistance of tungsten with the outstanding electrical and thermal conductivity of copper.
Generally, these composites are produced by copper infiltration of tungsten performs. The process
involves sintering tungsten at temperatures ranging from 1600-1700 °C in order to get porous block
followed by infiltration with copper. In the present study, a new process was adopted with an aim to
obtain pore free W-Cu composites. Pure tungsten powders with an average particle size of 2-5 µm
was used to synthesize tungsten-copper composites. The compaction pressure and sintering
temperature were standardized to obtain desired density of tungsten, ensuring interconnectivity of
pores. Sintered porous tungsten was infiltrated with oxygen free copper at 1300 °C in hydrogen
atmosphere for 1 h. Results showed that near full density composites were obtained after the
infiltration. Mechanical properties such as tensile, hardness, compression and flexural strength were
evaluated. These results are analysed based on density, microstructure and machinability.
Keywords: Tungsten, infiltration, sintering, mechanical properties.
Acknowledgements Authors would like to acknowledge DRDO for funding out the experiments.
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the presenting
author.
ICMM-2019 135 Book of Abstracts
ICMM: 548 | Sliding wear characteristics of epoxy-glass composites
reinforcedwith micro B4C
Z. Shanti Kiran*, V. Suresh Babu, V. Sri Ram, M. Kameswara Reddy
*National Institute of Technology, Warangal, 506004, India
*Corresponding author. Mobile: (+91) 9177756772; E-mail: [email protected]
Abstract
Epoxy/glass composites reinforced with micro boron carbide (B4C) made by hand lay-up method.
The effect of micro B4C powder on dry sliding wear behaviour of epoxy/glass composites was
studied. Taguchi method was used to design the experiments and analyse the results. Incorporation of
B4C filler resulted in improvement of wear resistance of composites by 25.9%. The percentage
influence of selected composite parameters are 28%, 70.97%, 0.82% respectively, for filler content,
fiber volume percentage, and fiber orientation. The deformation mechanisms under dry sliding wear
were investigated using SEM photographs. The study of effects of selected machine parameters i.e.
load, speed, and sliding distance on weight loss of composite consisting of 2.5 wt% of B4C, 31.5
vol% of glass fiber, and 45˚ fibers orientation revealed that there is 53.19%, 27.81%, 15.60%
influence on wear loss.
Keywords: Epoxy-glass composites; boron carbide; sliding wear, Taguchi method, ANOVA
Acknowledgements We acknowledge and give credit to MHRD for this research work carried out in NIT Warangal.
ICMM-2019 136 Book of Abstracts
ICMM: 549 | STUDY OF IONIC CONDUCTION MECHANISM IN PEO+PVdF
BASED POLYMER BLEND ELECTROLYTES COMPLEXED WITH NaClO4
Kiran Kumar Ganta1*, Venkata Ramana Jeedi1, K. Vijaya Kumar2 and E.
Laxmi Narsaiah1
1Department of Physics, B V Raju Institute of Technology, Narsapur, Medak-502313,
India 2Department of Physics, JNTUH College of Engineering Sultanpur, Sultanpur (V), Pulkal
(M), Sangareddy-502273, India
*Corresponding author. Mobile: (+91) 9885889094; E-mail: [email protected]
Abstract
Solid polymer electrolyte films based on polymer blend of Poly (Ethylene Oxide) (PEO) and Poly
(VinylideneFluoride) (PVdF) complexed with sodium perchlorate (NaClO4) salt have been prepared
using solution cast technique. The complexation of NaClO4 salt with polymer blend of PEO and
PVdF has been confirmed by X-Ray diffraction (XRD) and Fourier Transform Infrared Spectroscopy
(FTIR). The melting temperatures were measured by Differential Scanning Calorimetry (DSC). The
surface morphology was studied by Scanning Electron Microscopy (SEM). We observed that the
addition of a small amount of PVDF in the PEO host polymer enhances the ion – polymer interaction
leading to more ion dissociation. As a result, the effective number of mobile charge carriers within
the polymer matrix increases. The DC ionic conductivity studies have shown the maximum
conductivity 9.77X10-4
S/cm for the polymer blend 0.8PEO + 0.2PVDF complexed with 5 wt. %
NaClO4.
Keywords: DSC, FTIR, PEO, PVdF, Polymer blend, SEM, XRD.
Acknowledgements
The authors wish to express their sincere thanks to JNTUH for the financial support through the
project JNTUH/TEQIP-III/CRS/2019/Physics/04.
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author.
ICMM-2019 137 Book of Abstracts
ICMM: 602 | Investigation of Various Phases of Fe-Co-Si layerSynthesized in
Si by Fe and Co Dual Ion Implantation
Satyabrata Singh 1, Wickramaarachchige J. Lakshantha1, Bibhudutta Rout 1* 1 Department of Physics, University of North Texas, Denton, TX, 76203, USA
*Corresponding author. Mobile: (+1) 940-765-9150; E-mail: [email protected]
Abstract
Ion beam synthesis technique is used as one of the important tools for synthesis and processing of
nanostructures used in semiconductor device industries. The major challenge is not only to make the
devices smaller in size but also to optimize the synthesis process. Subsequent modification and/or
doping of these nanostructures (e.g. semiconductor nanowires) using low energy (kilo-electron-volt,
KeV) ion beams can significantly enhance their functional (optical, electronic and magnetic)
properties. These properties can strongly differ from the respective bulk counterparts due to the high
surface-to-volume ratio of the nanostructures. Ternary intermetallic compounds involving Fe and Co
are the most interesting due to their unique crystallographic structures and chemical phases. These
compounds exhibit remarkable magnetic, electronic and thermal properties. Various alloy thin films
involving Fe, Co, and Si have been formed using the chemical vapor deposition method. However,
there is not much research done on the synthesis of self-assembled Fe-Co-Si alloy Nano system using
ion implantation. In this study, we will be reporting the simulated and experimental results of 50 keV
energy Fe and Co ion irradiated Silicon wafers at various fluence. The simulation result shows that
for 50 keV ion-implanted in Si, both the Fe and Co ion concentration is saturated at a fluence of
2×1017
atoms/cm2 and higher. The Synthesized samples were annealed at different temperatures to
obtain various Fe-Si phases. The results show that for lower annealing temperature, Iron rich phases
are formed but for higher annealing temperature Iron based silicides are formed. We will report the
results from the subsequent implant of Fe and Co both at 50 keV [1]. We will also report the X-Ray
diffraction (XRD), Scanning Electron Microscope (SEM), and X-ray Photoelectron Spectroscopy
(XPS) measurements of the implanted substrate both as-implanted and after thermal annealing in
order to investigate the formation of various crystal structures in Silicon. We will report the results of
the similar dual ions implant in Si nanowire. Implanting ions into nanowires can modify their
properties and annealing the implanted nanowire at different temperatures can facilitate the formation
of various alloys in the nanowire. Finally, in this study, we will report the output results of various
ion-solid interaction simulation codes for Fe or Co ion-implanted into Si nanowires, which can be
utilized for the synthesis of ternary metal-silicon alloy nanostructures.
Keywords: Ion Implantation; Nano System; XRD; Thermal Annealing; XPS.
Acknowledgements: We would like to thank UNT High-Performance computing center
(https://hpc.unt.edu/) for providing computing time for the simulation.
ICMM-2019 138 Book of Abstracts
ICMM: 604 | Experimental Study of Parameters of P-20 Steel on CNC milling
machine
M Vishnu Vardhan1*, Chinmay P Mohanty2, B Dhanraj1 1Dept of Mechanical Engineering, Vardhaman College of Engineering, Shamshabad,
Hyderabad-501218, India 2School of Mechanical Engineering, VIT University, Vellore, Tamil Nadu-632014
*Corresponding author. Mobile: (+91) 9959933036; E-mail: [email protected]
Abstract
Milling is the most common form of machining process used in the production of
moulds/dies, due to the high tolerances and surface finishes by cutting away the unwanted material.
The selection of Pre-hardened steel (P-20) is widely used in production of moulds/dies because of
less wear resistance and are used for large components. Due to extensive use of highly automated
machine tools in the industry, manufacturing requires reliable models and methods for the prediction
of output performance of machining processes.
The major objective of the present study is experimental analysis of machining parameters in
end milling for surface roughness by considering the input parameters such as cutting speed, feed
rate, axial-depth of cut, radial depth of cut and nose radius using taguchi’s orthogonal array.
Keywords: Taguchi’s orthogonal array; P20 Steel; surface roughness; cutting speed; feed rate.
Acknowledgements
The authors hereby thank Mr. Durgesh Nadig, Senior Scientific Officer, Indian Institute of Science
Bangalore, India for his suggessions. Authors also acknowledge the support of Dr. Parthoghosal,
Scientist F, DMRL Hyderabad, India for analysis.
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ICMM-2019 139 Book of Abstracts
ICMM: 606 | Trace Elements of Azadiracta indica from mining area byEDXRF
technique
S. Jyothsna1*, G. Manjula1 and A.S. Nageswara Rao1 1Research Scholar, Department of Physics, Kakatiya University, Warangal, 506001, India
*Corresponding author. Mobile: (+91)8179722619; E-mail:[email protected]
Abstract
The effect of mining activity on environment has one of the major concerns for public health.
The Present study deals with the elemental analysis of selected medicinal plant of Azadiracta indica
from mining area, Ramagundam, Karimnagar district. Elemental analysis was done by using Energy
Dispersive X-ray Fluorescence spectrometer at Trace Elemental Laboratory, UGC, DAE-CSR,
Kolkata centre. EDXRF is one of the most powerful, non-destructive, multi-elemental and with high
sensitive analytical technique. The thirteen elements such as P, S, Cl, K, Ca, Mn, Fe, Cu, Zn, Se, Br,
Rb and Sr were identified and their elemental concentrations were determined. These results
compared with control sample and NIST1515 apple leaf, it shows various elements found to present
in deferent quantities in same plant from different areas. High elemental concentrations were found
in Azadiracta indica from coal mining area, this may be due to of coal mining area has been
associated with enhancement of heavy toxic elements absorbed by soil. The analysis of this study
also gives the presence of elements in the environment pollution from mining area plant sample.
Keywords: Ex-3600 spectrometer; Trace elements; Azadiracta indica; Medicinal plants; Various
diseases.
Acknowledgements
The authors thanks to Dr. M. Sudarshan and Staff of the UGC- DAE Consortium for Scientific
Research centre, Kolkata, India, for providing the facilities at their Trace Elemental Laboratory for
carry out the EDXRF experimental work.
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ICMM-2019 140 Book of Abstracts
ICMM: 607 | Ag/GaN hybrid nanostructures for opto-electronicapplications
Kishor Upadhyaya1*, Narasimha Ayachit1, Shivaprasad S. M.2
1Centre for Materials Science, K.L.E. Technological University, Hubballi City, 580031,
India 2Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced
Scientific Research, 560064, India
*Corresponding author. Mobile: (+91) 9902047144; E-mail: [email protected]
Abstract
A hybrid system of Ag nanoparticles and GaN nanowall network (GaN NWN) exhibits its
characteristic optical properties and electronic band structure. Photoluminescence studies of GaN
reveal the presence of a high density of band tail states at the conduction band, which is significantly
(x14 times)largerthan in GaN epilayer. The adsorption of low coverages of Ag leads to
nanoclusterformation,facilitatingcharge transfer from GaN to Ag and thereby further increasing
surface charge carriers. Upon annealing to 4000C, a red shift of ~ 0.18eV in the band edge emission
peak is observed along with two additional peaks on its either side. Raman studies show an increase
(x 2.46 times) in the interfacial strain at the Ag/GaN interface after the deposition of the Ag
nanoparticles. Influence of charge transfer between Ag and GaN along with the plasmon-exciton
coupling on Surface Plasmon Resonance leading to the abovementioned results has been discussed.
Keywords: GaN nanowall network; Ag nanoparticles; Photoluminescence; Raman spectroscopy
Acknowledgements We thank TEQIP and VGST (GRD-242 and GRD-441) for the financial support.
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ICMM-2019 141 Book of Abstracts
ICMM: 609 | Optical properties of Calcium Sodium Phosphate Glasses doped
with Strontium
Chethan1, Sudhakar Reddy. M2, Abhiram. J3, Asha Rajiv4*
1,2,4School of Sciences-II, JAIN(Deemed to be University), Bengaluru, 560002, India
1,3Dept. of PG Studies and Research in Physics, The National College, Bengaluru,
560070, India
*Asha Rajiv. Mobile: (+91) 9880624363; [email protected]
Abstract
Strontium doped Calcium – Phosphate - Sodium oxide glasses were prepared by a conventional melt
quenching technique with different composition ratios of CaO and Na2O. XRD Spectra of these
glasses clearly reveals their amorphous nature. Density, molar volume, optical absorption and
refractive index measurements were determined in order to study the role of CaO in optical
properties of these glasses. The absorption spectrum of these glass samples exhibited broad band at
about ~230nm. Optical band gaps were determined by drawing Tauc plot and the various properties
like Urbach energies, molar refractivity, oxide ion polarizability, molar polarizabilty and optical
basicity were also calculated. The variations observed in all these properties can be attributed to the
creation of non-bridging oxygen’s (NBOs) in the glass network with increase in the concentration of
CaO which is an alkali earth oxide that creates non-bridging oxygens (NBOs).
Keywords: Optical properties; Non-Bridging Oxygens; Polarizability; Band Gaps.
Acknowledgements
Authors like to acknowledge the National College, Jayanagar, Bengaluru and Center for Nano and
Materials Science for their constant support for this research.
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ICMM-2019 142 Book of Abstracts
ICMM: 611 | Effect of ZnO nanoparticles on structure and
magneticproperties of Li2O-B2O3: TiO2 glasses
L. Srinivasa Rao1*, Ch. Sai Phani Kumar2, K. Aruna Prabha2, C.D. Naidu1 1Centre for Nanoscience and Technology,
2Department of Mechanical Engineering,
VNR Vignana Jyothi Institute of Engineering and Technology, Bachupally, Nizampet
(S.O), Hyderabad, Telangana, Pin- 500 090, India.
*Corresponding author. Mobile: (+91) 9849803685; E-mail:[email protected]
Abstract
Li2O-B2O3 glasses were synthesized doping with TiO2 and co-doping with TiO2 as well as
ZnO nanoparticles by melt-quenching method. The samples were labelled as LB1, LBT2 and LBTZ3.
The XRD patterns of the prepared glass samples have shown two amorphous halos at small values of
2θ (≈ 22o and 45
o) are attributed to the short-range periodicity of the glass network due to non-
bridging oxygens (NBOs). The FTIR spectra of the glasses have exhibited prominent bands due to
the trigonal BO3 units, tetrahedral BO4 structural units and bending vibrations of B–O–B linkages.
Also, absorption bands were clearly seen due to stretching vibrations of O-H bonds of moisture in the
glass samples. The rigidity of the samples follows order: LB1> LBT2> LBTZ3. The ESR spectrum of
the glass sample LBTZ3 has exhibited a spectral line centered at about g ≈1.94. The addition of ZnO
nanoparticles into the glass matrix leads to convert the non-magnetic glass sample into a magnetic
glass material; because some of Ti4+
ions may be converted as Ti3+
ions in the melt-quenching
process. Thus, we expect that these materials can find the potential applications such as solid state
electrolytes and magnetic sensors etc.
Keywords: ZnO nanoparticles, Oxide glasses,X-ray diffraction studies, FTIR spectra, EPR spectra.
Acknowledgements Authors would like thank management of VNR VJIET, Hyderabad for sanctioning this project under
CNST establishment grant (File no. 17/VJ/1274).
ICMM-2019 143 Book of Abstracts
ICMM: 613 | Elastic properties of sodium diboro-vanadate glasses
Harikamalasree1,2, G. Chandrashekaraiah3, R Viswanatha4, C Narayana
Reddy5 1R&D Center, Bharatiar University, Coimbatore, Tamil Nadu, India
2Department of Physics, M LR Institute of Technology Hyderabad-043, India,
3Government First Grade College, Kunigal, Tumkur University, Tumkur - 572130, India
4Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, India
5Department of Physics, PES Degree College, Bangalore – 560050, India
*Corresponding author. Mobile: (+91) 9989608690; E-mail:[email protected]
Abstract
Ultrasound velocities and elastic moduli of sodium diborovanadate glasses have been studies
over wide range of composition. Longitudinal and transverse velocities vary as a function of Na2O
content, which can be attributed to the structural density due to the increase in the number of bonds
per unit volume. The elastic moduli: longitudinal, shear, young’s and bulk modulus also show
compositional dependence. The increase in elastic moduli with Na2O concentration can be attributed
to the increase in rigidity due to the enhancement in the network connectivity (B-O-B, V-O-V, B-O-
V and V-O-B) and the dimensionality of the network. The variations are explained on the basis of
structural motifs formed due to network modification.
Keywords: Elastic properties, bulk modulus, diboro-vanadate.
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ICMM-2019 144 Book of Abstracts
ICMM: 614 | Non-linear optical properties of Bi2O3-TeO2-B2O3-GeO2 glasses Salavadi Stalin1*, Avula Edukondalu2, M.A. Samee3, Sair Md. Taqiullah4, SyedRahman1 1Department of Physics, Osmania University, Hyderabad, India.
2Department of Physics, University college for Women, Koti, Hyderabad, India.
3Department of Physics, University college of Technology, Osmania University, Hyderabad, India.
4Department of Physics, College of Science, Jazan University, Saudi Arabia.
*Corresponding author. Mobile: (+91) 9666670558; E-mail: [email protected]
Abstract
New bismuth tellurite boro-germanate glasses according to composition xBi2O3-(80-x)TeO2-
10B2O3-10GeO2 where (x=40, 45, 50, 55, 60 and 65 mol%) have been prepared by melt quench
technique at 1150 C. The room temperature optical absorption spectra have been recorded. The
indirect band gap energy Eg was determined and found to decrease with Bi2O3 content. The increase
in Urbach energy with glass composition indicates the decrease in structural stability. The ionic and
covalent bonding parameters were determined. The present glasses are found to be 99 % ionic in
nature. The two-photon absorption coefficient was found to increase from 11.89 to 14 cm/GW. The
non-linear optical properties such as non-linear refractive index, linear optical susceptibility and third
order non-linear optical susceptibility were evaluated using optical data. The authors determined
theoretically the optical band gap (Eg) and refractive index (n) of the present glasses using optical
electronegativity data. The relationship between Eg and n followed the relation Eg n4 = 99. The
present glasses were found suitable for drawing optical fibers.
Keywords: Indirect band gap energy, Ionic bonding parameter, Non-linear optical susceptibility,
refractive index.
ICMM-2019 145 Book of Abstracts
ICMM: 619 | Growth of 2-D MoS2 thin film by facile electrochemical deposition
Chittatosh Pal1, Subrata Majumder1*
1National Institute of Technology, Patna 800005, Bihar, India
*Subrata Majumder. Mobile: (+91) 9471949907; E-mail: [email protected]
Abstract
Among all transition metal dichalcogenides (TMDs), MoS2 shows very unique conducting
and optoelectronic properties, which makes it the most suitable material for fabricating real-time
sensors and atomically thin transistors. By chemical modifications, the MoS2 can be made more
useful in the field of various gas sensors, biosensors, optoelectronic devices. In this study we present
a novel facile method to grow 2-D MoS2 thin films by electrochemical deposition technique. We
have successfully grown MoS2thin films on ITO substrates through functionalization of MoS2 nano-
flakes in the presence of monochloroacetic acid (MCA). The functionalization of trigonal prismatic
MoS2 flakes with carboxyl group was achieved through sonication of MoS2 solution in DI water in
the presence of MCA and KOH. Due to weak van der Walls force between the sulphur-sulphur layers
of MoS2 flakes, ultrasonic vibrations can easily intercalate the MoS2 flakes, creating sulphur
vacancies at the two outer side surfaces and further saturated by Cl atoms of the MCA, forming
composites of MoS2-COOH. The as grown composites were then driven through linear sweep
voltammetry on an ITO glass plate to form the MoS2 thin film by controlling the sweeping cycles.
The growth of the thin film was confirmed by the cyclic voltammetric current responses, which show
the corresponding change in oxidation peak currents after the deposition of COOH-MoS2 thin film on
the ITO substrates. It was further observed that the charge transfer decreases with the increase in
thickness of the thin films as expected from the thick MoS2 semiconductor. These 2D MoS2 can be of
immense use in designing new types of real-time semiconducting biosensors, gas and
electrochemical based sensors, and atomically thin 2D transistors.
Keywords: MoS2; 2D; Nanocomposites; Cyclic voltammetry
Acknowledgments:
We would like to thank the Department of Science and Technology (DST), India for full financial
support of this research work with grant no.- ECR/2016/000818.
ICMM-2019 146 Book of Abstracts
ICMM: 621 | Temperature dependence of density and thermal expansion of
oxide of Dysprosium in the temperature range 300 to 1000 K
M. RangaRao1 , N. Gopi Krishna2, S Chandra lingam3 1 Department of Physics, Kavitha memorial Degree and P.G College
2 Department of Physics Kakatiya University Warangal
3 Department of Physics, JNTUH, Hyderabad
Email:mrraophysics @gmail.com, cell:9963185659
Abstract
In this communication the variation of density and thermal expansion of oxide of dysprosium
with temperature is studied and reported.The gamma ray attenuation technique is employed to carry
out the study with a gamma ray densitometer fitted with high temperature furnace designed in our
laboratory. The temperature dependent quantities such as linear gamma ray attenuation (µl), density
(ρ) and the coefficient of linear thermal expansion (α) of Dy2O3 have been fit to a second degree
polynomial equation.
Keywords:Rare earth oxide, Thermal expansion, Gamma ray attenuation.
Acknowledgements
The authors gratefully thank Prof. C.Radhakrishnamurthy and Prof. K.GopalkishanRao of Central
Instrumentation Centre (CIC), Kakatiya University, Warangal for providing experimental facilities.
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ICMM-2019 147 Book of Abstracts
ICMM: 622 | Cyclic oxidation behaviour of Cr3C2-NiCr coatings on three
different superalloys
* Subhash Kamal1, Srinivas Reddy1, S.R. Pedapati2, A.M. Abdul-Rani2 1Department of Mechanical Engineering, Geethanjali College of Engineering and
Technology, Cheeryala (V), Keesara (M), Medchal Dist. Hyderabad – 501301
Telangana, 2Mechanical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri
Iskandar, 32610 Perak, Malaysia *Corresponding Author: [email protected]; Ph. no: +91 9948176918
Abstract
The D-gun sprayed Cr3C2-NiCr coatings on three different superalloys when subjected to cyclic
oxidation in air at 900 o
C for 100 cycles were found to be successful in maintaining its adherencey
with the substrate superalloys. The oxide scales were also found to be intact and there is no
indication of any spalling in all the cases. A saving in overall cumulative weight gain for Cr3C2–
NiCr coated superni 75, superni 718 and superfer 800H with respect to the bare alloys tend to be of
the order of 37.3%, 26.3% and 19.6% respectively. The Cr3C2–NiCr coating after exposure to air
oxidation showed the presence of mainly oxides of Cr in the upper region of the scale. In the
subscale region, the phases revealed were oxides of Cr and Ni, and their spinels, below the subscale
region, Ni-rich splats remained un-oxidised and provided protection to the superalloys against high
temperature oxidation.
Keywords: Oxidation; superalloys, Detonation gun, Cr3C2–NiCr coating
ICMM-2019 148 Book of Abstracts
ICMM: 625 | Unexplored Intermetallic Nanopartilcle Catalyst towards Low-
Temperature Energy Extraction from Ethanol
Gubbala V. Ramesh1 1Assistant Professor, Department of Chemistry, Chaitanya Bharathi Institute of Technology (A),
Gandipet, Hyderabad-500075, India
*Corresponding author.Mobile: (+91) 8076909068;E-mail:[email protected]
Abstract
The vast populations of countries with burgeoning economies increasingly require environmentally-
friendly day-to-day methods of energy generation. Most of the traditional methods rely on
petroleum-combustion systems which produce significant quantities of exhaust, causing serious
health conditions and air pollution. The increasing interest in renewable energies has highlighted the
centrality of catalytic metal nanoparticles (NPs) in sustainable energy-conversion technologies
including photocatalytic water splitting and polymer-electrolyte membrane fuel cells (PEMFCs).
Ethanol fuels, which can be produced via biochemical routes including fermentation, are of growing
importance to establish the desirable petroleum-free economy. However, ethanol fuels are still
precluded from broad use except as an additive to petroleum for traditional combustion systems
primarily because of the lack of efficient catalysts which promote complete oxidation of ethanol at
low temperatures to fully extract chemical energy without heat loss. To address this, we report that
Platinum based intermetallic nanoparticles (NPs) with early 3d metals (Nb, Zr and Ta)1-3
, which are
materialized for the first time via a wet-chemistry route, exhibit substantially high performance
toward the complete electro-oxidation of ethanol at room temperature. The electro-oxidation of
ethanol fuels catalyzed by the TaPt3 NPs is accompanied by no toxic exhaust and is more energy-
efficient than combustion systems, allowing populations to improve their quality of life and reduce
the impact of their emissions on the global environment.
Keywords: Intermetallic Nanoparticles, Pt3Nb, Pt3Zr, Pt3Ta, Ethanol Electrooxidation.
ICMM-2019 149 Book of Abstracts
ICMM: 626 | Paper based Photo-detector using Nano-crystalline LeadSulfide
Thin Film Pooja M. Khanzode1, Devidas I. Halge1, Vijaykiran N. Narwade1, Kiran D.
More1, Sumayya Begum1, Sabah Taha1, Suhas M. Jejurikar2, Jagdish W.
Dadge3, Abhimanyu S. Rana4 and Kashinath A. Bogle1,*
1Thin Films and Devices Laboratory, School of Physical Sciences, Swami Ramanand
Teerth Marathwada University, Nanded – 431606 INDIA 2National Center for Nanoscience and Nanotechnology, University of Mumbai, Mumbai-
400098 INDIA 3Department of Physics, College of Engineering, Pune-411005 INDIA
4Center for Advanced Materials and Devices, School of Engineering & Technology, BML Munjal University,
Gurgaon 122413 INDIA
*Corresponding author. Mobile: (+91) 7350845827; E-mail:[email protected]
Abstract
In this paper, we report an extremely low cost and highly efficient method for fabrication of
visible light photo-detector using nano-crystalline lead sulfide (PbS) thin film. The film was
fabricated on 300 GSM paper via spray pyrolysis technique at 100 0C. Structural and morphological
analysis of the film confirms the nano-crystalline nature of PbS with size ~ 50 nm and uniform
coating of PbS on paper. Photo-detector devices are prepared by drawing contacts using 4B pencil on
the film by keeping a gap of 1 mm between electrodes. Photo-detection property of a nano-crystalline
PbS thin film under visible light illumination show linear I-V suggesting low resistive contact
between graphite electrode and PbS film. The photo-sensitivity measurements reveal excellent
sensitivity of ~ 103 at 20 V. For this graphite/nano-PbS/paper photo-detector, the best rise and decay
time is observed to be 7 and 16 ms, respectively. This simple and low cost fabrication method results
in highly stable and sensitive photo-detectors device, which have fast response and decay time.
Keywords: Nano-crystalline; PbS; spray coating; photo-detector, fast response and decay time
ICMM-2019 150 Book of Abstracts
ICMM: 629 | Review of Dissimilar FSW Joints
K.Viswanath Allamraju*, Thota Sreehari , Shaik Anees Institute of Aeronautical Engineering, Hyderabad, 500043, India
*Corresponding author. Mobile: (+91) 9398692463; E-mail: [email protected]
Abstract
Friction stir welding (FSW) was invented for the welding of dissimilar metals are difficult to weld by
other conventional welding method as fusion welding. FSW is a solid state joining welding technique
in which material undergoes intense plastic deformation at elevated temperature. Development of
FSW is considered to be most significant for the industry of automobile, aircraft and aerospace etc.
The joining of dissimilar metals is difficult by using traditional methods of welding because of inter
metallic compounds like Magnesium and Aluminium alloys. In order to enhance the joint strength,
The Friction stir welding is used which is a solid-state welding process. It is used to weld dissimilar
metals (or) unweldable metals.In this paper, review of dissimilar metals is presented by considering
the importance of the properties of friction stir welded joint of dissimilar metals.
Keywords: Dissimilar Metals, FSW, Aluminium alloy, Magnesium alloy.
ICMM-2019 151 Book of Abstracts
ICMM: 632 | Comparative Analysis of Sodium Hexa-titanate (Na2Ti6O13) &
Sodium-Potassium Hexa-titanate (Na1.5K0.5Ti6O13)
N Alam1$, T Khatoon2, V S Chandel3*$, A Azam3, Rashmi4 1$
Department of Applied Science, BNCET, Lucknow-226201, India 2Department of Physics, Integral University, Lucknow-226026, India
3*$Department of APSH, Rajkiya Engineering College, Ambedkar Nagar-224122, India
4Material Science Programme, IIT Kanpur, Kanpur, India
5Department of Applied Physics, ZHCET, AMU, Aligarh-202002, India
$Affiliated to Dr. A.P.J. Abdul Kalam Technical University, Lucknow
*Corresponding author. Mobile: (+91) 7007922632; E-mail:[email protected]
Abstract
The present paper discusses the synthesis and characterization of Sodium Hexa-titanate (NHT) and
Sodium-Potassium Hexa-titanate (NKHT) by solid state reaction method. The phase of the
synthesized material was confirmed by XRD and the particle size has been calculated using Debye-
Scherrer relation. Morphology of the surface and dimensions of the crystals have been analysed
using FE-SEM analysis at different magnification. EDS analysis has also been done for elemental
analysis of Sodium Hexa-titanate and Sodium Potassium Hexa-titanate. IR spectra have been
recorded for getting various vibration modes of the samples.
Keywords: Sodium Hexa-titanate, Sodium-Potassium Hexa-titanate, XRD, FESEM, EDS, IR.
Acknowledgements
One of the authors is thankful to TEQIP-III of REC Ambedkar Nagar for providing the financial
assistance for the project. Authors are also thankful to Dr. Sri Siva Kumar, Associate Professor,
Department of Chemical Engineering and Material Science Programme, IITK, for providing the
experimental facility.
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ICMM-2019 152 Book of Abstracts
ICMM: 634 | Development and validation of HPLC method for the
Quantitative determination of (E) -3-(3-(dimethylamino) propyl)-3- (3-(4-
hydroxy-3 methoxyphenyl) acryloyl) dihydrofuran-2(3H)-one tartarate as a
potential spermicide
Rishi Ranjan Pandey1, Devendra P. Mishra2*
1Department of chemistry, Pt Ram Lakhan Shukla Government Post Graduate College
Alapur, Ambedkar Nagar 2Department of APSH, Rajkiya Engineering College Ambedkar Nagar, UP.
*Corresponding author. Mobile: (+91) 8127963298; E-mail:
Abstract
A simple and precise HPLC method for the Quantitative determination of (E)-3-(3-(dimethylamino)
propyl)-3-(3-(4-hydroxy-3 methoxyphenyl) acryloyl) dihydrofuran-2(3H)-one tartarate (a potential
spermicide) was developed and validated according to ICH guidelines. HPLC separation was
achieved on C-18 column (250mm, 4.6mm, 5m, merk) using a mobile phase consisting of
acetonitrile-0.1% acetic acid in water (85:15, v/v) at a flow rate of 1 mL/min and the eluents were
monitored by photo diode array detector at 240 nm. Limit of detection (LOD) and lower limit of
quantification (LLOQ) were found to be 0.69 μg/mL and 1.95 μg/mL. The method was validated for
linearity, limit of detection (LOD), limit of quantification (LOQ), recovery, precision and accuracy.
Keywords: Spermicides, HPLC, ICH guideline, N-9, LOQ, LOQ
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ICMM-2019 153 Book of Abstracts
ICMM: 701 | Design and Development of Object Detection and Separation
Mechanism using Raspberry Pi
Vinaykumar Patancheru, G. Shravan Kumar, S. Venkata Surya Prasad MLR Institute Of Technology, Dundigal, Hyderabad, 500043, India
Vinaykumar Patancheru. Mobile: (+91) 8686804950; E-mail: [email protected]
Abstract
The Activity deals with an automated article allocation and implementing actual administration (pick
and place) for called items application apprentice system. It synchronizes the movement of automatic
arm to aces the altar affective on a agent belt. It aims in classifying the color (black, red, green, blue)
and shaped altar (circular, aboveboard shaped preferable) which are advancing on the agent by
acrimonious and agreement the altar in its corresponding pre-programmed location. Thereby
eliminating the terrestrial plan done by human, accomplishing accurateness and acceleration in the
work. The proposed arrangement makes use of avant-garde Raspberry Pi processor and aswell USB
camera to faculty the called altar affective on the conveyer belt.
The altar are sensed application an USB camera. When the article appears abreast to its around again
the arrangement captures an angel and fed as ascribe arresting the Raspberry Pi processor for added
implementation. The Raspberry Pi processor checks the captured angel from the predefined abstracts
abject like appearance and blush of the object. When the article detected matches with the called
appearance like blush and admeasurement again it activates the automatic arm motors application
interfacing circuits. The basal firmware for the Raspberry Pi is accounting in PHP/Python language.
The arrangement uses DC motor for the movement of conveyer belt and servomotor for automatic
arm gripper to aces the altar of corresponding blush and appearance from the anchored area at
accurate direction.
The Raspberry Pi is a low cost, credit-card sized computer that can be acclimated in electronics
projects. It is a able little accessory that enables humans of all ages to analyze computing, and to
apprentice how to affairs in languages like Scratch and Python. It’s able of accomplishing aggregate
you’d apprehend a desktop computer to do, from browsing the internet and arena high-definition
video, to authoritative spreadsheets, word-processing, and arena games.
Keywords: USB- Universal Serial Bus, DC- Direct Current, PHP- Personal Home Page
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ICMM-2019 154 Book of Abstracts
ICMM: 704 | Data Logger Using Pic Micro-Controller
T. Pranetha, V. Arun , S. Venkata Surya Prasad
MLR Institute of Technology, Hyderabad, 500043, India
Mobile: (+91) 94916138531
; E-mail: [email protected]
Abstract
My project is about data logger using PIC micro-controller. When transporting the goods
from one place to another place or storing the goods in a certain place, the components should work
perfectly according to our application. Sometimes due to room temperatures also we can observe a
change in the component readings. So in that cases, data logger systems will be helpful. By using
those data log systems we can calculate temperature and humidity parameters. Then these readings
will be stored in a memory location so that these readings will be helpful for the future purpose. In
this type of temperature and humidity based data loggers, along with real time clock it will carry out
the measurements also.This project shows you how to get the temperature and humidity values for
particular components which are kept in a certain room or area or during the shifting process along
with the real time clock. Here we are measuring various weather parameters like temperature
humidity, time and date and all these process will be done by using PIC microcontroller. For this, we
require sensors for getting temperature and humidity values and a real time clock is used to get real
time. We can retain previous values also by using previous records. Finally, we can display these
parameters on the LCD display and save the records so that we can access the previous records. For
this storage we can use controller memory or else externally also we can connect a memory called
SD-card.
Keywords: IDE- MicroC pro for PIC, Simulation- Proteus software, PIC18F6527 microcontroller,
SHTxx sensor, Real Time Clock, 20*4 LCD- Display.
ICMM-2019 155 Book of Abstracts
ICMM: 705 | A Consecutive Parameter Extraction Technique for IGBT
compact model
N.V. Bharadwaj1*, Dr. P. Chandrasekhar2,Dr. M. Sivakumar
1Geethanjali College of Enegineering and Technology, Hyderabad, 501301,India
2MGIT, Hyerabad, 500075, India
3Gudlavalleru Engineering College, Gudlavalleru, 521356, India
*Corresponding author. Mobile: (+91) 9492030271; E-mail:[email protected]
Abstract
A consecutive parameter extraction technique describes the fitting target related parameters for
Insulated-gate bipolar transistor (IGBT) model is presented. Using simulated data for a trench-type
IGBT as reference the performance of compact model IGBT is compared to an IGBT macro model.
Due to physics based modelling parameter extraction with the compact model is fast. With very less
extraction effort, the compact model fits the dc current and capacitance characteristics accurately.
Keywords: Compact model, macro model, insulated-gate bipolar transistor, parameter extraction.
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ICMM-2019 156 Book of Abstracts
ICMM: 706 | To Design And Develop The Realtime Watermarking Schemes
Which Could Be Used In Iptv Applications A. Madhuri, N. Vasudeva Reddy, S. Venkata Suryaprasad
MLR Institute of Technology, Hyderabad, 500043, India
Mobile: (+91) 9441786935 or 9640212862;
E-mail:[email protected]
Abstract
A strong technique of totally reversible advantage hiding in encrypted photos is proposed.
The quit image is first partitioned into no overlapping blocks and particular encryption is utilized to
receive the encrypted photo. Then, snapshot trade within the encrypted area can be calculated
headquartered on the holomorphic property of the cryptosystem. The information hider, who does
now not admire the usual image content material, would reversibly embed secret capabilities into
image alternate based on two-dimensional trade histogram alternate. Understanding extraction is
utterly separable from photograph decryption; that’s, expertise extraction will even be finished each
inside the encrypted area or within the decrypted field, in order that it is most commonly utilized to
distinct program eventualities. Moreover, talents extraction and picture healing are free of any error
with the rapid characteristics taking situation in cell web and cloud storage, privateers and security of
personal expertise have received significant concentration this present day. There are not any
guarantees that saved knowledge is by any large no longer accessed via unauthorized entities, such
because the cloud provider itself or malicious attackers. Beneath these distinctive events, touchy
images, comparable to scientific and individual portraits, ought to be encrypted earlier than
outsourcing for privateers-maintaining capabilities. In exceptional phrases, the clients wish to give
the untrusted cloud server most mighty an encrypted version of the info instead of the normal content
fabric (i.e., plaintext). Nevertheless, in some utility circumstances, the could servers or database
managers must embed some extra messages, related to authentication or notation competencies, right
away into encrypted information for tamper detection or ownership declaration purposes.
ICMM-2019 157 Book of Abstracts
ICMM: 707 | DESIGN AND DEVELOPMENT OF PORTABLESPIRO METER
Kadari Anusha, V. Arun, S V S Prasad.
MLR Institute of Technology, Dundigal, Hyderebad,500043, India
*Kadari Anusha. Mobile: (+91) 8522856001; E-mail:[email protected]
Abstract
Every day we breathe about 20,000 times. This animation didn’t appear afterwards advice
from the respiratory tract, which includes the nose, throat, articulation box, trachea, and lungs. The
anniversary breath, which yield in air through your adenoids and mouth, and your lungs ample up
and abandoned out. As air is inhaled, the close membranes of the adenoids and aperture balmy and
bedew the air. Although we can’t see it, the air we breathe is fabricated up of several gases. Oxygen
is the a lot of important for befitting us animate because physique beef charge it for activity and
growth. Afterwards oxygen, the body’s beef would die. This activity uses AT89S52 Microcontroller
as affection of the project. We are appliance about-face arrangement to baddest the age of animal
being. It starts from accouchement to elders. Firstly we charge to baddest the age by appliance
switches. Again we charge to drag the air, by appliance the IR sensors we can apperceive the being is
advantageous or unhealthy. If the being is ailing again the buzzer will be activated. The LCD is
acclimated to affectation the bloom action of the person. Spirometer as capital accessory to perfom
spirometry assay is bare to accomplish analytic assay of Abiding Adverse Pulmonary Ache (COPD),
a limitation airflow disease. Spirometer will aftermath Affected Vital Accommodation (FVC), best
aggregate of air that can be exhaled during a affected action and aftermath Affected Asleep
Aggregate in one additional (FEV1), aggregate asleep in the aboriginal additional of acute cessation
afterwards a acute afflatus as the capital agency to assay COPD. Spirometry assay about performed
at a bloom dispensary or medical offices but now a days home spirometry with carriageable
accessories is boring accepting acceptance. But accepted carriageable home based spirometers accept
no coaching, feedback, or superior ascendancy mechanisms from physicians to ensure adequate
measurements. This abstraction creates android messaging, javafx desktop and website based advice
arrangement chip to carriageable spirometer fabricated from MPX5100DP sensor to account the
burden during FVC, and Arduino nano to accumulate clue and maintaince spirometry test.
Spirometers are acclimated to admeasurement lung accommodation and acknowledgment of lungs
and chest during concrete therapy.Accepted spirometers accessible in the bazaar are big-ticket and
usually amount over $1,000. Due to this top cost, abounding physicians practicing in developing
countries like India, cannot acquiesce spirometry equipment. As a result, millions of humans with
abiding adverse pulmonary disease, or COPD, are clumsy to be finer monitored or advised for their
disease. Thus, the development of a low amount reliable spirometer would acquiesce these
physicians to appraise their patient’s pulmonary health. All these factors led to the development of a
fabrication which addresses amount issues as able-bodied as abstruse accuracy.
Keywords:Micro controller, Serial port RS232, LCD Display.
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ICMM-2019 158 Book of Abstracts
ICMM: 708 | IOT and GPS Based Women Safety System Using ARM7 Controller
V. SHARANYA1
, S. VENKATA SURYA PRASAD2
MLR Institute of Technology, Dundigal, Hyderebad, 500043, India
Mobile: (+91) 9676033108 or 9160866898; E-mail:[email protected]
Abstract
In mild of the present state of affairs of the metro cities and other large cities, girls protection
has emerged as one of the maximum crucial requirements in our country. In this international of
advanced era and clever electronics it's miles required to have a easy and value-powerful safety
machine that facilitates the sufferers for the duration of unforeseen dangers. This challenge covers
descriptive details about the design and implementation of prototype for an electronic machine
whichhastheabilitytoserveasaprotectionwearinsidethecomingyears.Thedeviceincludesa transfer,
ARM7, Wi-Fi module (ESP2866), GPS module (Neo6M), buzzer, Vibration sensor . The
predominant working of this undertaking is that every time a woman senses risk, all she has to do, is
to maintain at the button of the tool. Once the tool is activated, it tracks the region of the girls the use
of GPS (Global Positioning System) and sends place using Wi-Fi (wi-fi fidelity), to a server inside
the police control room. Here using electric powered shock for whilst she is in threat for safety. The
main gain of this system is that this tool small and clean to carry. The use of state-of- the-art
additives guarantees accuracy and makes it reliable.
ICMM-2019 159 Book of Abstracts
ICMM: 709 | Emergency System based Smart Grid
S. Poorna Chandra Rao1,2, Dr.M.Sushama3 1Research scholar, Department of Electrical and Electronics Engineering, JNTU
Hyderabad, 500089, India 2Assistant Professor, Department of Electrical and Electronics Engineering, Geethanjali
College of Engineering and Technology, Cheeryal, 501301, India
3Professor, Department of Electrical and Electronics Engineering, JNTU Hyderabad,
500089, India
**Corresponding author. Mobile: (+91) 9533943555; E-mail:[email protected]
Abstract
In this paper a new approach to materialize a smart grid which uplifts the electricity via hybrid
renewable energy sources. As there is in demand of energy increase and de-regulation of power, Conventional
structure grid with few sources of generalized and centralized sources of system transmission i.e. it will supply
passive distribution of load in a system that will be charged with network based on energy renewal distribution
system connected to all levels of voltage.Solar, hydel and magnetic sources are applied to the booster for
harvesting the resources through the boosting circuits. The energy harvesting from solar cells by using the
primary batteries where electrochemical reaction is not reversed is very difficult. The electrochemical cells
with reversible chemical reation secondary batteries like Lithium-ion, Nickle Cadmium, Nickle metal hydride
and lead acid are used. The voltage level of this battery is incessantly monitored through voltage track and
microcontroller. Depending on the requisite voltage, if it is less than pre specified value then automatically
cut-offthe supply of that battery where the load is connected through an inverter and connects to another
battery through relay driver circuit which makes uninterrupted power supply to the load.
Keywords: Smart grid, micro grid, battery energy storage system, BESS, renewable energy sources, hybrid
power, solar energy, lead acid and lithium ion batteries.
Acknowledgements
I would like to express my special thanks of gratitude to Dr.M.Sushama, Professor, Department of Electrical
and Electronics Engineering, JNTU Hyderabad for her support and cooperation in doing this paper.
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ICMM-2019 160 Book of Abstracts
ICMM: 711 | Advancaed Traffic Signal Control Algorithms
Nagula Kalyani, N.Vasudheva Reddy, SVS Prasad MLR Institute of Technology, Dundigal, Hyderebad, 500043, India
*Corresponding author. Mobile: (+91)8466930323;E-mail: [email protected]
Abstract
The goal of this project is to develop advanced signal control strategies for mobility, safety, and
environment based on connected vehicle data, i.e., real-time information on vehicles’ location, speed
and characteristics as well as communication to the signal control infrastructure. This document is
the final report for the project. It describes the findings from the literature review on existing
adaptive signal control systems, their features and operational experiences from their
implementation. Several performance measures are proposed for evaluating signal control
algorithms, and procedures for estimating the performance measures from connected vehicle data
were developed using statistical techniques and kinematic wave theory. We developed and tested
through simulation a number of control strategies to improve mobility: queue spillback avoidance,
control for congested networks, and dynamic lane allocation. The results indicate that the proposed
strategies improve the traffic performance. We also developed strategies for improving intersection
safety with emphasis on avoidance of red light running (RLR) related collisions. A prototype in-
vehicle driver speed advisory system for minimum fuel consumption and emissions was also
developed. Field tests show that the prototype system achieved significant fuel savings.In addition,
when an ambulance approaching the junction, it will communicate the traffic controller in the
junction to turn on the green light. This module uses Zigbee modules on CC2500.
Keywords: RLR- Red Light Running, ZigBee, CC2500
ICMM-2019 161 Book of Abstracts
ICMM: 712 | EMOTION RECOGNITION FROM FACIAL IMAGES
Chintamadaka Ashwini, Anjaneyulu, SVS Prasad
MLR Institute of Technology, Dundigal, Hyderebad, 500043, India
*Corresponding author. Mobile: (+91)9515767505;E-mail: [email protected]
Abstract
Emotions play a very important role in our day to day life. Emotions are the natural physiological
response of the human bodywhich can be recognized by the facial expression. In the proposed system
research has been done in the field of Human Computer Interaction (HCI). The entire project is
divided into three majorsteps i.e. face detection, facial featureextraction and classification. In the
firstphase face detection has been done using Haar Cascaded frontal face algorithm. The system
detects and crops the lip region forfurther classifications, then the features areextracted into
vectorized form. Extracted features are compared with traineddatabase using Logistic Regression.
The main hardware used in this project is Raspberry pi with linux based OS toneglect the drawbacks
of personal computer and for better picture quality 8MP USB Camera is used.
Keywords: HCI- Human Computer Interaction, 8MP USB Camera.
ICMM-2019 162 Book of Abstracts
ICMM: 715 | Impact of Deregulated power system market in
congestionmanagement of a transmission line
Thakur Pooja Rani1,2, Dr. P.V. Balasubrahmanyam3, Dr. Manjula
Mane4
1Research scholar, Department of Electrical Engineering, Osmainia University,
Hyderabad, Telangana, India., 2Assistant Professor, Department of Electrical and Electronics Engineering,
Geethanjali college of Engineering & Technology, (e-mail: [email protected] ). 3Professor in Department of Electrical and Electronics Engineering, CMRCET,
Hyderabad, Telangana, India (e-mail:[email protected]). 4Professor in Department of Electrical Engineering, Osmainia University, Hyderabad, Telangana, India (e-
mail:[email protected] ).
*Corresponding author. Mobile: (+91) 7416684918; E-mail:[email protected]
Abstract
Electricity is essential for daily life of the people and also for strengthening the economy.
Over the past few years, the electric power industry, in many countries, has undergone significant
changes in the total installed generation capacity using both conventional and non-conventional
energy sources. Despite of this remarkable progress, economy is still facing an enormous need to
meet the growing demand of electricity thereby increasing the competition offering opportunities to
number of generating companies, to deliver the electric power with same local service, same local
quality, and same local load delivery. This rapid increase in the power generation from various
emerging integrated energy sources are becoming a challenge to the existing transmission network.
Considering calculation accuracy and time this paper proposes two different computational
approaches viz.,(i)Neural networks Radial Basic Function(RBF) ,(ii)Monte Carlo simulation to
continuously compute Available Transfer capability (ATC) of a IEEE 14 bus transmission test
system to withstand the contingencies more efficiently in case of load change and line outages to
give accurate results so as to upgrade it in a deregulated transmission network. The results of the two
proposed techniques are compared to obtain accuracy for optimization in a deregulated environment.
Keywords: Available Transfer Capacity (ATC), Deregulation, congestion, Independent power
producers (IPPs), Neural Networks, Independent system operator (ISO), unbundling
Acknowledgements Sincere thanks to the authors for their kind co-operation and support in completion of paper.
ICMM-2019 163 Book of Abstracts
ICMM: 718 | Casson Fluid Performance on Convective Flow in presence of
MagneticField, Chemical Reaction and Porous Medium
G. Aruna, M. V. Phani Kumari, R. Srinivasa Raju*
Department of Mathematics, GITAM University, Hyderabad campus, Rudraram, 502329,
Sanga Reddy (Dt), Telangana State, India
*Corresponding author. Mobile: (+91) 9885263919; E-mail: [email protected]
Abstract
The aim of this research work is to found the numerical solutions of magneto-hydro-dynamic
electrically conducting, viscous fluid flow towards a vertically inclined plate in presence of heat and
mass transfer, chemical reaction effects. The basic governing equations such as momentum, energy,
and concentrationare solved using an efficient finite element method which is more accurate than
other numerical methods. For this study, there are several engineering flow parameters effects on
velocity, temperature andconcentration fields are discussed through graphs. In conclusion, there is a
comparison of present numerical method with available results in literature and agree very well.
Keywords: Casson fluid; MHD; Chemical reaction; Finite element method.
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ICMM-2019 164 Book of Abstracts
ICMM: 719 | Carbon footprint estimation for sustainable development
Dr. J.S. Sudarsan1, Jyesta.W2, Jaisal.D2, Dr. V. Sri hari3, Pola Vamshi4* 1Asst. Professor, School of Construction Management,
2,4PG Students Advanced Construction Management, National Institute of Construction
Management (NICMAR), PUNE – 411045, 3Professor, NICMAR, Hyderabad 500101, India
*Corresponding Author. Mobile: (+91)9642602396; E-mail: [email protected]
Abstract
The different types of human exercises particularly those recognized with development, signifies
outflow of ozone depleting substances, greenhouse emissions that outcome into an Earth-wide
temperature boost and environmental change. This affects nature and leads to imbalance in the
environment and ecosystem. Henceforth it has turned out to be important to reduce dangerous
atmospheric changes by some sustainable mitigation processes. In all the greenhouse gases, CO2 is
the main compound that adds to a worldwide temperature alteration. Thus it is fundamental
responsibility for every person to control the carbon outflow by understanding the concept of
sustainable development.
Carbon footprint estimation for an institutional and residential building was done separately for each
component of structure or as a whole organization. The reason for this investigation includes
distinguishing proof and examination of different emission inventories and the measure of carbon
transmitted by them regarding an institutional structure and the residential building materials also
assessed. Furthermore this study examines the current methodologies and approaches to estimate
carbon footprint in an institutional building and residential building in Karnataka.To ascertain the
status of carbon emission in the residential building materials a study was carried out in a proposed
residential structure. It was concluded that the existing institutional building is carbon positive and
also the amount of carbon emission by building materials used in the residential building also
contribute to carbon footprint results to carbon positive. So as to lessen the emission and to convert
the institutional structure and the residential building materials from carbon positive to carbon
negative, general mitigation measures are recommended and by implementing the same how much
carbon emissions also reduced was discussed .This research study also helps in creating awareness
about the impact of amount carbon emissions happening in an institutional building due to different
activities among the students, faculties and other public/Stake holders.
Keywords: Greenhouse effect, Carbon foot print estimation, Institutional building, Carbon positive,
Carbon Negative.
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ICMM-2019 165 Book of Abstracts
ICMM: 720 | Numerical Study of unsteady Jeffrey Fluid Flow Past AVertically
Inclined Plate in presence of MHD, Thermal Radiation
M. V. Phani Kumari, G. Aruna, R. Srinivasa Raju*
Department of Mathematics, GITAM University, Hyderabad campus, Rudraram, 502329,
Sanga Reddy (Dt), Telangana State, India
*Corresponding author. Mobile: (+91) 9885263919; E-mail: [email protected]
Abstract
In this present investigation, unsteady boundary layer flow of MHD free convection heat andmass
transfer flow of a viscous, incompressible and electrically conducting fluid over an impulsively
started infinite verticalplate in presence of thermal radiation and Jeffrey fluid. For this study, the
magnetic Reynolds number is considered to be so small that the induced magneticfield can be
neglected. The fundamental equations are solved for numerical solutions using Element Free
Galerkin Method. The numerical values of fluid velocity, fluidtemperature and fluid concentration
are displayed graphically whereas the numerical values of skin-friction, the Nusseltnumber and the
Sherwood number are presented in tabular form for various values of pertinent flow parameters.
Keywords: MHD; Jeffrey fluid; Thermal radiation; Element Free Galerkin method.
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ICMM-2019 166 Book of Abstracts
ICMM: 722 | Wiresless Communication Tehnologies For Smart Grid (WAMS)
Development
P. ARAVIND KUMAR, V. ARUN , S. VENKATA SURYA PRASAD
MLR Institute of Technology, Dundigal, Hyderebad, 500043, India
Mobile: (+91) 8106727041, 9182466124; E-mail: [email protected]
Abstract
Highly flexible, secured and bi-directional communicationinfrastructure for power system data
exchange is the stepping stone for the success of smart grid vision. Traditionally, wired
communication is the first choice for monitoring, protection and control systems. With advent in
communication technologies, the wireless technologies have also emerged as potential contender for
data communication in various industrial applications. Wireless technologies have distinct
advantages over wired in terms of higher mobility, lower installation cost and faster deployment
among others. The deployment of wireless technologies for monitoring and control systems of Smart
Grid namely WAMS has been largely unexploited area. This paper devises a systematic approach
that identifies the communication requirements of WAMS, defines the capability of various wireless
technologies such as Wireless LAN (WLAN), Wi-Max, Wi-Fi, GSM, GPRS etc. based on
performance criteria and selects the potential wireless communication technologies for WAMS based
on closest match. The WAMS communication requirement specifications have been arrived based on
Indian Smart Grid case studies. The paper also discusses the challenges and hence opportunities
associated withimplementation of wireless technologies for Smart Grid.
ICMM-2019 167 Book of Abstracts
ICMM: 723 | Heuristic Techniques for Planning and Operation of Smart
Microgrid: A Review
Preeti1, K. S. R. Murthy2, Harish Pulluri3*
1Skill Assistant Professor, Shri Vishwakarma Skill University, Palwal, Haryana, 121102,
India 2Assistant Professor, Gayatri Vidya Parishad College of Engineering, Visakhapatnam,
Andhra Pradesh, 530047 3Associate Professor, Department of EEE, Geethanjali College of Engineering and
Technology, Hyderabad, Telangana, 501301, India
*Corresponding author. Mobile: (+91) 9985267696; E-mail:[email protected]
Abstract
In the recent past, the inclusion of renewable energy sources has been increased to a very significant
ratio in the power generation sector. The power system engineers working on the planning and
operation of generation and distribution of electric power proposed that instead of transmitting the
power to long distances, there must be some mechanism through which the transmission losses can
be reduced and also, power supply during unfavourable climatic conditions such as storms, rain etc.
must remain unaffected. This results in the setup of smart microgrids which poses the advantage of
independency of power supply from grid and can be used as isolated substation for small as well as
large customer demand. For the planning and operation of such microgrids, the optimization
techniques play a vital role in determining the different parameters to attain the optimal working
condition of the microgrid. To highlight these key optimization algorithms, this paper presents the
state of art of the heuristic techniques used for planning and operational issues of the microgrids.
Keywords: Heuristic; microgrid; smart; renewable; planning and operation
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ICMM-2019 168 Book of Abstracts
ICMM: 724 | Solution of Optimal Power Flow Problem Using CarTracking
Optimization Algorithm
K. Mahender1, M. Vyshnavi2, B. Sai Priya3, Harish Pulluri4*
1Associate Professor, Department of EEE, Geethanjali College of Engineering and
Technology, Hyderabad, 501301, India. 2,3
UG Scholar, Department of EEE, Geethanjali College of Engineering and Technology,
Hyderabad, 501301, India, 4Associate Professor, Department of EEE, Geethanjali College of Engineering and
Technology, Hyderabad, 501301, India.
*Corresponding author. Mobile: (+91) 9985267696; E-mail: [email protected]
Abstract
In the current research car tracking optimization (CTO) technique is introduced to solve the optimal
power flow problem in an electrical network.With the introduction of new adaptive global velocity
updating method and local speed updating method, the CTO technique is capable to find the optimal
solution. IEEE 30-bus system with different objective functions are considering in the present work
to validate the effectiveness of the proposed algorithm. The attained results are compared with the
results in the existing literature. These results proved that the demonstrate that the CTO algorithm
provide better results in comparison to the other algorithm methods.
Keywords: Optimal Power Flow, Fuel Cost, Evolutionary Algorithm, Car Tracking Optimization
Technique
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ICMM-2019 169 Book of Abstracts
ICMM: 726 | Design of a New Multilevel Inverter for FACTS Application
Padmaja Voleti 1,2, Dr. Y Siva Reddy3
1Research scholar, Department of Electrical and Electronics Engineering, JNTU
Ananthapur,515002, India 2Assistant Professor, Department of Electrical and Electronics Engineering, Geethanjali
College of Engineering and Technology, Cheeryal, 501301, India 3Professor, Department of Electrical and Electronics Engineering, G.Pulla Reddy
Engineering College, Kurnool, 518007, India
*Corresponding author. Mobile: (+91)8186855725; E-mail: [email protected]
Abstract
In recent times, there is a large increase in demand in power. As it is not economically viable
to attempt to develop transmission systems by simply installing new transmission lines, Flexible AC
transmission systems (FACTS) controllers are being mainly used for solving various power system
steady state control problems. The major component of these FACTS devices is a converter and
various types of controllers have been already proposed. In this proposed system, multilevel inverters
are used for harmonic reduction. This paper proposes a unique design of inverter with reduced
number of switches and hence to reduce the switching losses. The scheme proposed here is used on
an Interline Power Flow Controller (IPFC). The inverter can produce the pulses with different width
and magnitude and the output almost resembles a sine wave. The result of the proposed multilevel
inverter is compared with conventional type of IPFC. The simulation of both proposed system and
conventional system are given in this paper. The sample of voltage and current will be taken from the
transmission line and is given to the processor to determine the angle of firing for the switching
device.
Keywords: Flexible AC Transmission System (FACTS); Interline Power Flow Controller;
Multilevel inverter; Cascaded H Bridge
Acknowledgements
I would like to express my special thanks of gratitude to Dr. Y. Siva Reddy, Professor, Department
of Electrical and Electronics Engineering, G. Pulla Reddy Engineering College, Kurnool, for his
support and cooperation in doing this paper.
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ICMM-2019 170 Book of Abstracts
ICMM: 729 | Design of a New Multilevel Inverter for Solar Energy
Conversion Systems
Padmaja Voleti 1,2, Dr. Y Siva Reddy3
1Research scholar, Department of Electrical and Electronics Engineering, JNTU
Ananthapur, 515002, India 2Assistant Professor, Department of Electrical and Electronics Engineering, Geethanjali
College of Engineering and Technology, Cheeryal, 501301, India 3Professor, Department of Electrical and Electronics Engineering, G.Pulla Reddy
Engineering College, Kurnool, 518007, India
*Corresponding author. Mobile: (+91)8186855725; E-mail: [email protected]
Abstract
Multilevel inverters are capable of overcoming the limitations of two level inverters and can
synthesize a near sinusoidal voltage at its terminals from multiple dc sources. Several multilevel
inverter structures incorporate the more switching devices which increases the complex design due to
increased number of operating levels. In this paper a new inverter topology with reduced switch
count has been proposed. This can be used for interfacing solar energy conversion to conventional
grid. The proposed topology offers fewer switches, gate drive circuits, reduced size, low cost, low
harmonic profile, low switch stress and high efficiency over the formal topologies. The detailed
simulation analysis is carried out by using MATLAB/SIMULINK software and results are verified
with a conventional topology.
Keywords: Multilevel inverter; Renewable energy sources, Solar-Photovoltaic, Total Harmonic
Distortions.
Acknowledgements
I would like to express my special thanks of gratitude to Dr. Y. Siva Reddy, Professor, Department
of Electrical and Electronics Engineering, G. Pulla Reddy Engineering College, Kurnool, for his
support and cooperation in doing this paper.
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ICMM-2019 171 Book of Abstracts
ICMM: 732 | Formal Verification of Fault Location, Isolation and Service
Restoration in Distribution Automation
S. Poorna Chandra Rao1,2, Dr. M. Sushama3 , Ch. Kavitha4
1Research scholar, Department of Electrical and Electronics Engineering, JNTU
Hyderabad,500089, India 2Assistant Professor, Department of Electrical and Electronics Engineering, Geethanjali
College of Engineering and Technology, Cheeryal, 501301, India
3Professor, Department of Electrical and Electronics Engineering, JNTU Hyderabad,
500089, India 4Student, Department of Electrical and Electronics Engineering, Geethanjali College of Engineering and
Technology, Cheeryal, 501301, India
**Corresponding author. Mobile: (+91) 9533943555; E-mail:[email protected]
Abstract
In recent years, due to the consumers need to electricity with the least outages and the highest
reliability, power continuity of the electrical systems have been highly regarded by companies in the
electrical distribution field. Complexity in the process of distribution automation and manually
restoration mechanism in modern distribution networks cause longer duration of outages and make
the need to a reliable model for automatic fault location, isolation and service restoration (FLISR)
process necessary. In this study, a mathematical model of the FLISR process in a distribution
network is presented based on formal methods. The proposed model correctness has been
investigated by evaluating its important properties consisting liveness, reachability and deadlock
free.
Keywords: Distribution automation; fault analysis; automation; reliability.
Acknowledgements
I would like to express my special thanks of gratitude to Dr.M.Sushama, Professor, Department of
Electrical and Electronics Engineering, JNTU Hyderabad for her support and cooperation in doing
this paper.
I would like to express my profound sense of gratitude indebtedness to Ch. Kavitha, student,
Department of Electrical and Electronics Engineering for her valuable cooperation at each and every
phase of the work.
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ICMM-2019 172 Book of Abstracts
ICMM: 734 | The Study of Surface Integrity on Friction Stir Welded Brass Plates
P.V. Chandra Sekhara Rao1*, B. Ramesh Chandra2, Aluri Manoj3
1,2,3Department of Mechanical engineering, RGUKT-Basar, Telangana- 504107
*Corresponding author. Mobile: (+91) 94442 40356;
E-mail:[email protected]
Abstract
As brass materials are having high strength and high resistance towards corrosion, along with
high thermal and electrical conductivity, these were the reasons for their wide usage in the industry
as engineering materials. Although they have good appearance, they can also be shaped easily.
Anyhow, fusion welding of brass is a difficult task, as during the process of fusion welding zinc
evaporation has been a major concern which these alloys which affects its chemical and physical
properties. Many researchers have been working for the new methods as problems due to fusion
welding are not getting solved in case of brass. In this scenario Friction stir welding is one of the
novel methods to solve these problems. Then, experimental investigations were needed in this
domain. Although decent research works have been reported on FSW of Aluminium, copper and
their alloys, but constrained work has been done in case of brass. This research aims to determine the
optimum parameters for FSW of brass and corrosion test, tensile test, environmental tests, surface
morphology and surface metallurgy results has been examined on the obtained weld joints.
Keywords: FSW, Brass, Tensile strength, Surface integrity, Surface morphology, Corrosion test.
ICMM-2019 173 Book of Abstracts
ICMM: 735 | LiTaO3 Directional Coupler Switching Operation with Enhanced
Extinction Ratio and Low Insertion Loss
Dr. D. Neelima Patnaik* and Dr. M.Chandra Shekhar Reddy DepartmentofPhysics, CMR College of Engineering & Technology, Hyderabad, India.
Abstract
A novel design of optical directional coupler switch with S-bend waveguides on LiTaO3
platform has been designed with R-Soft CAD tool and the same is simulated by Beam
propagation method(BPM) for light propagation analysis. The simulation results of optical
directional coupler switches are reported. We observed that the directional coupler (DC) switch
has lower insertion losses and higher extinction ratios with variation in waveguide parameters such
as, wavelength, waveguide gap, and length of the device. Simulation results designate that the
switching efficiency for TE and TM modes with extinction ratio about 3dB when the
waveguide gap is 3.5μm for both the polarization modes and insertion loss is 13dB with same
waveguide gap in TE mode and 16dB in TM mode at 1550 nm wavelength.
ICMM-2019 174 Book of Abstracts
ICMM: 741 | Monte Carlo study of a martensitic model: Coarsening
exponents
N. Shankaraiah1*, Sanjay Puri2, and Subodh R. Shenoy1 1TIFR Centre for Interdisciplinary Sciences, Hyderabad 500107, India;
2School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India.
*Corresponding author. Mobile:(+91)9515909088; E-
mail:[email protected]
Abstract
We present Monte Carlo simulations under systematic temperature-quenches of a discrete-
strain pseudospin model Hamiltonian1 for a square-rectangle martensitic transition
2 in 2-spatial
dimensions. The model Hamiltonian contains: (i) a Landau term which has triple-well at the first-
order transition to represent one high-temperature parent austenite phase and two low-
temperature product martensite variants; (ii) a Ginzburg term for domain-wall energy costs; and
(iii) a no-defect condition induced power-law anisotropic interaction potential. We switch off the
anisotropic interaction potential and quench the austenite diluted with 2% of randomly sprinkled
martensite below the first-order transition. For shallow, moderate and deep quenches, we find
coarsening of martensite domains that follows a power-law L(t) ~ tα in time. The coarsening
length exponents are found to be in good agreement with the underdamped dynamics of a model
Landau free energy with continuous-strain order parameter3.
Keywords: Martensites; Solid-solid transitions; Monte Carlo.
ICMM-2019 175 Book of Abstracts
ICMM: 742 | Investigation on Natural Convective Flow of EthyleneGlycol -
Fe3O4 Nanofluid in A Porous Cavity with Thermal Radiation
Ramesh Alluguvelli1*, Chandra Shekar Balla2, Lavanya Bandari3, Kishan
Naikoti4
1Department of Mathematics, Geethanjali College of Engineering & Technology,
Hyderabad, 500031, India 2Department of Mathematics, Koneru Lakshmaiah Education Foundation, Hyderabad,
500075, India 3Department of Physics, Anurag Groups of Institutions, Hyderabad, Telangana, 500039,
India. 4Department of Mathematics, Osmania University, Hyderabad, Telangana, India.
*Corresponding author. Mobile: (+91) 9966260224; E-mail:[email protected]
Abstract
This paper addresses free convection heat transfer in a square cavity filled with ethylene glycol
nanofluid containing (Fe3O4) in porous square cavity in the presence of thermal radiation. The top
and bottom horizontal walls of cavity are considered adiabatic, while the vertical walls are kept at
constant temperatures. The governing partial differential equations are solved by Galperin’s Finite
element method of weighted residual scheme. Numerical results are computed for certain pertinent
parameters: Rayleigh number (10-1000), radiation parameter (0.1-1) and nanofluid volume
fraction(0.1-0.5). The overall investigation of variation of streamlines, isotherms and Nusselt
numbers is presented graphically. To examine the accuracy, the present results are compared with the
available results and found to be in good agreement.
Keywords: Ethylene Glycol; Nanofluid; Fe3O4; Porous square cavity; Thermal Radiation,
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the presenting
author.
ICMM-2019 176 Book of Abstracts
ICMM: 744 | An Arduino Based Multifrequency Voltage Controlled Oscillator
(Mf-VCO) for Electrical Impedance Spectroscopy (EIS)
Tushar Kanti Bera1*, Suraj Prasad Barnwal1, Toushik Maiti1 1National Institute of Technology Durgapur (NITD)
Mahatma Gandhi Av, A-Zone, Durgapur, West Bengal 713209, India
*Corresponding author. Mobile: (+919448853308); E-mail: [email protected]
Abstract
A voltage-controlled oscillator (VCO) [1] is one of the key parts of electrical impedance
spectroscopy (EIS) [2] system which measures the electrical impedance of a material at different
frequency points within a particular bandwidth to study its frequency response. EIS instrumentation
[3] needs a function generator to generate an alternating voltage signal which is, generally, converted
into a constant amplitude current signal to inject it to the sample under test (SUT) and the sample
impedance is estimated by measuring the surface potential developed. On the other hand, the voltage
signal is also, sometimes, directly injected to the SUT to measure its electrical impedance from the
current signal developed due to the voltage applied. An automatic EIS instrumentation essentially
needs an automatic sinusoidal voltage generation at different frequencies which is generally obtained
by a VCO controlled by a microcontroller or any other electronic controlling unit such as PC based
Data Acquisition systems [4]. In this paper an Arduino UNO [5] based Multifrequency-VCO (Mf-
VCO) is developed for EIS studies. The VCO is developed with function generator circuits which
generates the sinusoidal voltage signal at different frequencies by changing the value of few passive
components connected to the IC as the frequency controlling components. The frequency controlling
components are connected to the VCO through an analog multiplexer circuits (AMC) operated by the
digital signals to generate the signals with required frequency values. The digital signals are
generated in Arduino board through its digital I/O pins and fed to the AMC to control the frequency
generation in VCO. The digital signal generation and AMC operation are assessed by LED based
digital signal evaluator (LED-DSE) to assure the connectivity of the passive components and
frequency control. Results show that the Mf-VCO is suitable for EIS studies of biological samples
within a wide bandwidth
Keywords: Voltage Controlled Oscillator (VCO), Multifrequency-VCO (Mf-VCO), Electrical
Impedance Spectroscopy (EIS), EIS instrumentation, LED based digital signal evaluator (LED-
DSE).
Acknowledgements Please acknowledge the funding authorities and other research supports.
ICMM-2019 177 Book of Abstracts
ICMM: 745 | A Low-Cost Electroencephalography (EEG) Instrumentation for
Epileptic Seizure Detection
Tushar Kanti Bera1* and Sunil Choudhary1,2 1National Institute of Technology Durgapur (NITDgp), Durgapur, WB 713209, India
2Dr. B. C. Roy Engineering College, Durgapur, West Bengal 713206, India
*Corresponding author. Mobile: (+919448853308); E-mail: [email protected]
Abstract
Epilepsy is a brain disorder or an abnormal activity of the central nervous system in which the human
brain malfunctions for a certain period of time, causing unusual behavior, sensations, and sometimes
loss of awareness or seizures. An epileptic seizure, which is caused by the inconsistent electrical
activity of the brain, is found as a period of unusual symptoms excessive or synchronous neuronal
activity in the brain. Noninvasive detection of epileptic seizures is an important role with many
advantages in medical science to assist doctors to diagnose and treat the patient. EEG based epileptic
seizure detection is a fast technology that generally combines electronic instrumentation and the
signal processing algorithm. In this paper, an EEG acquisition system (EAS) has been developed
with a multi-stage amplifier and filter blocks. The instrumentation is studied, tested and evaluated
with low voltage, low-frequency periodic signals generated with a function generator developed with
Wien Bridge oscillator circuit. The instrumentation has also been studied with the EEG-like signals
simulated by a virtual instrumentation (VI) developed with NI MyDAQ controlled by a LabVIEW
based graphical user interface (GUI). The instrumentation noise response is studied by measuring the
SNR of the circuit blocks using the test signals with and without noises. The SNR is obtained at each
stage of the circuit blocks and the overall SNR of the EAS instrumentation is measured and
compared. Results, obtained from the experimentation conducted with the real periodic signal as well
as the EEG waveforms simulated by VI, show that the developed EAS is suitable for acquiring and
amplifying the EEG signals and suitable for detection of epileptic seizure.
Keywords: Electroencephalography (EEG), EEG Instrumentation, Epilepsy, Epileptic Seizure
Epileptic Seizure Detection, EEG-like signals, NI MyDAQ.
Acknowledgements Research support has been provided by NIT Durgapur (NITDgp), West Bengal 713209, India.
ICMM-2019 178 Book of Abstracts
ICMM: 746 | Electrical Impedance Spectroscopy (EIS) of Biological Cells: A
Matlab-based Simulation Study
Tushar Kanti Bera1*and Sampa Bera2 1National Institute of Technology Durgapur (NITDgp), Durgapur, WB 713209, India
2Member, Institute of Electrical and Electronics Engineers (IEEE), USA.
*Corresponding author. Mobile: (+919448853308); E-mail:[email protected]
Abstract
Biological tissues are developed of a three-dimensional array of the cells surrounded by the
extracellular matrix. Biological cells consist of a nucleolus floating within a sap like intracellular
material called cytoplasm containing cell organelles. The intracellular matrix is enclosed by an
envelope called a cell membrane composed of a protein-lipid-protein bi-layer structure. In the plant
cells, there is an another envelope called cell wall over the cell membrane. The cell wall is developed
with a comparatively rigid material to make a solid structure for plant tissues. Under an alternating
electric excitation, all the biological tissues, both the animal tissues and plant tissues, exert a complex
bioelectrical impedance which is a function of tissue materials as well as the applied signal
frequency. Due to the difference in the anatomical structural and material compositions, the
impedance models differ in tissue type. Moreover, it is obvious that the equivalent cell models of
plant cell and animal cell are different. Due to the variation in their single-cell model, the frequency
response of the electrical bioimpedance of the animal cell and plant cells. Consequently, the
impedance responses of animal and plant tissues are found remarkably distinguishable. The present
paper investigates the electrical impedance response of the biological cells with electrical impedance
spectroscopy (EIS). The animal and plant cell models are developed in Matlab and the EIS studies
are conducted for their single-cell structures. Complex bioimpedance and their phase angles are
calculated within a wide frequency range and the Nyquist plots are analyzed by estimating the real
and imaginary part of the bioimpedance. Comparative studies are also conducted for the multicell
model of both the animal and plant tissues.
Keywords: Biological tissues,biological cells, cell membranes, bioelectrical impedance, animal cell
model, plant cell model, electrical impedance spectroscopy (EIS).
Acknowledgements Research support has been provided by NIT Durgapur (NITDgp), West Bengal 713209, India.
ICMM-2019 179 Book of Abstracts
ICMM: 748 | Finite Element Analysis of Heat Generation/Absorption of
Viscousdissipation Effects on MHD Casson Fluid Flow Over Exponentially
Acceleratedtemperature with Ramped Surface Concentration
Sweta Matta1, Bala Siddulu Malga2, Lakshmi Appidi1, P.Pramod Kumar3
1Department of Mathematics, CMR Technical Campus, Kandlakoya, Telangana ,India 501401
2Department of Mathematics, GITAM University, Hyderabad, Telangana, India 502329.
3Department of Mathematics,B V Raju Institute of Technology,Narsapur, Telangana, India 502313.
Corresponding authors:[email protected]; [email protected]
Abstract
This paper studies the effects of viscous dissipation, chemical reaction and heat
generation/absorption on unsteady MHD Casson fluid flow over an exponentially accelerated
vertical plate embedded in porous medium with ramped wall temperature and ramped surface
concentration. By introducing the similarity variables, the dimensional governing equations are
converted to non-dimensional form and solve numerically by using Galerkin Finite element method
and expressions for velocity, temperature and concentration profiles are obtained.
The change of velocity, temperature and concentration profiles effected by the following parameters
such as Prandtl number(Pr), Casson parameter (√), permeability parameter (k), Schmidt number
(Sc), Grashof number (Gr, Gm), chemical reaction parameter R,
heat generation / absorption
(H),Eckert number (Ec) and results are presented graphically and discussed quantitively.
Keywords: Finite element method, chemical reaction, Eckert number, Casson parameter, heat
generation/ absorption.
ICMM-2019 180 Book of Abstracts
ICMM: 749 | Design and Implementation of Power Conditioning for
DistributionNetworks V2G to Electric Vehicle and DC charging system
Dr. K. Sree Latha1, Dr. M. Lakshmi Swarupa2 1Professor, St.Peter’s Engineering College, Hyderabad
2Professor, CVR Engineering College, Hyderabad
1Ph:9705334772, Mail: [email protected]
2Ph:9849732190, Mail: [email protected]
Abstract
Smart interactions among the smart grid, aggregators and EVs can bring various benefits to all
parties involved, e.g., improved reliability and safety for the smart gird, increased profits for the
aggregators, as well as enhanced self benefit for EVcustomers. The impact of plug-in electric
vehicles (PEVs) integrated into a powerdistribution system based on voltage-dependent control. The
gasoline gate situation has many peopleturning to electric vehicles as a more environmentally
friendly option, especially in smart communityareas. The proposed PEVs model was developed as a
static load model in powerdistribution systems under balanced load conditions.The topology of the
proposed charger consists of the bidirectional ac/dc and buck–boost dc/dc converters, where it can
operate in four quadrants in the active-reactive power plane with the capability of harmonic
compensation. Based on the PQ theory, the active and reactive power that includes average and
oscillatory components obtained, based on the demand of nonlinear/linear loads and EV battery. In
this paper presents the design of a single-phase electric vehicle (EV) on-board bidirectional charger
with the capability of power conditioning based on its control in charging/discharging active power
based on the demand of EV battery/network or load. The proposed approach was validated and
implemented in softwarepackages like MATLAB/OPALRT or etc to integrate the fidelity of the
physical simulation and the flexibility of the numerical simulations.
Keywords: Plug-in Electric vehicles; smart charging; PQ theory, EV battery; Physical simulation.
Acknowledgements:
The authors would like to express highest gratitude to the Faculty of Electrical and
Electronics Engineering, CVR College of Engineering for providing the effective facilities and
efficient learning environment in conducting the research. The research is supported by the
research grant of JNTU-TEQIP3 Collaborative Research Proposal “Multi-agent system for Energy
Management of Renewable and Alternative Energy in Domestic Cooking” of Rs 2, 15,000 Lakhs.
ICMM-2019 181 Book of Abstracts
ICMM: 750 |Influence of Slip and Heat and Mass Transfer Effects on
PeristalticMotion of Power-Law Fluid in a Proned Tube
K. Maruthi Prasad1, N. Subadra2* 1Department of Mathematics, School of Technology, GITAM University, Hyderabad
Campus, Hyderabad, Telangana, India-502329 2*
Department of Mathematics, Geethanjali College of Engineering and Technology,
Cheeryal (V), Keesara (M), Medchal Dist., Telangana, India-501301
*Corresponding author. Mobile: (+91) 9440029849;
E-mail:[email protected]
Abstract
Present study deals with the study of peristaltic motion of a power-law fluid with nanoparticles in a
tube with permeable walls. Heat and mass transfer effects and slip effect are studied in this
investigation. Axial velocity, pressure gradient and frictional force are expressed analytically and
investigated various parameter effects on these flow variables. The present model revealed that, heat
transfer coefficient and mass transfer coefficients increases in the region [-1,0] and decreases in the
region [0,1] with the increase of thermophoresis parameter and shows an opposite behaviour with the
increase of Brownian motion parameter. Pressure drop increases with the increase of slip parameter.
Frictional force decreases with the increase of slip parameter and converges to 1.
Keywords: Power-law fluid, Slip parameter, Brownian motion parameter, Thermophoresis
parameter.
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ICMM-2019 182 Book of Abstracts
ICMM: 753 | Soret Effect on Radiation-Convection Flow in Porous Medium
with Chemical Reaction
Dr. Sk. Nuslin Bibi*, G. Padma
Geethanjali College of Engineering and Technology, Cheeryal (V), Keesara (M),
Medchal (Dist), T.S. 502103, India
*Corresponding author. Mobile: (+91) 9949997934; E-mail: [email protected]
Abstract
The numerical solution of unsteady two-dimensional, laminar, boundary layer flow of
viscous, incompressible, electrically conducting fluid in a channel filled with porous medium along
a semi-infinite vertical plate in the presence of transverse magnetic field and uniform mass diffusion.
The Galerkin finite element method is used to solve the equations governing flow. The flow
phenomenon has been characterized with the help of flow parameters such as velocity, temperature
and concentration profiles for different parameters such as Schmidt number, Prandtl number,
magnetic field, chemical reaction parameter, permeability parameter, chemical reaction, Soret
number and Grashof number. The velocity, temperature and concentration are verified graphically.
The coefficient of skin-friction, Nusselt number and Sherwood number are calculated.
Keywords: MHD; Soret; Thermal Radiation, Finite element method.
.
ICMM-2019 183 Book of Abstracts
ICMM: 754 | Heat and Mass Transfer on Unsteady MHD Flow Through Aporous Medium in A Rotating Channel
G. Padma*, Dr. Sk. Nuslin Bibi
1Geethanjali college of Engineering and Technology, Cheeryal(V), Keesara (M),
Medchal (Dist), T.S. 502103, India
*Corresponding author. Mobile: (+91) 8019937970; E-
mail:[email protected]
Abstract
Heat and mass transfer on the unsteady two dimensional MHD flow through porous medium
under the influence of uniform transverse magnetic field in a rotating parallel plate channel. A
mathematical model is developed for unsteady state situations using slip conditions. Analytical
expressions for the velocity, temperature and concentration profiles, wall shear stress and rates of
heat and mass transfer have been obtained and computationally discussed with respect to the non-
dimensional parameters.
Keywords: MHD; rotating channels; porous medium; heat and mass transfer.
.
ICMM-2019 184 Book of Abstracts
ICMM: 758 | Mathematical Approach to Study Heat and Mass Transfer
Effects in Transport Phenomena of a non-Newtonian Fluid
N. Subadra1*, M. A. Srinivas2, Sunil Dutt Purohit3 1*Department of Mathematics, Geethanjali College of Engineering and Technology,
Cheeryal (V), Keesara (M), Medchal Dist., Telangana, India-501301
2Department of Mathematics, Jawaharlal Nehru Technological University, Kukatpally,
Hyderabad, Telangana, India-500085
3Department of Mathematics, Rajasthan Technical University, Rajasthan
*Corresponding author. Mobile: (+91) 9440029849;
E-mail:[email protected]
Abstract
The paper deals with a theoretical investigation of the peristaltic transport of a couple-stress
fluid with heat and mass transfer effects. The velocity, pressure drop, time averaged flux, frictional
force, mechanical efficiency, temperature profile, nano particle phenomena, heat transfer coefficient
and mass transfer coefficient of the fluid are investigated, when the Reynold’s number is small and
wave length is large by using appropriate analytical methods. Effects of different physical parameters
like couple-stress fluid parameters, Brownian motion parameter, thermophoresis parameter, local
temperature Grashof number as well as local nanoparticle Grashof number on pressure drop
characteristics, frictional force, mechanical efficiency, heat transfer coefficient, mass transfer
coefficient, steam line patterns and velocity profiles of the fluid are studied. The expressions for
velocity, temperature profile, nanoparticle phenomenon, heat transfer coefficient and mass transfer
coefficients are sketched through graphs in two as well as in three dimensional views. The
streamlines are drawn to discuss trapping phenomenon for some physical quantities.
Keywords: Peristalsis, Couple-stress fluid, Temperature Profile, Nanoparticle phenomena
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ICMM-2019 185 Book of Abstracts
ICMM: 2103 | Facile Hydrothermal Synthesis and Enhanced electrochemical
Performance of ZnCo2S4 Nanoparticles
M. Dakshanaa, S. Meyvela*, M. Silambarasanb, M. Malarvizhia
aChikkaiah Naicker College, Erode, Tamilnadu, India -638 004
b Vivekanandha college of Arts and sciences for women, Tiruchengode, Tamilnadu, India, - 637 205
E.Mail address: [email protected]
Abstract
Ternary transistion metal sulfides are promising electrode materials due to its low
electronegativity and high conductivity, higher electrochemical activity in compare to transition
metal oxides and single metal sulfides. In this research work, ZnCo2S4 nanoparticles have been
successfully prepared through a simple, cost-effective hydrothermal synthesis method for high
performance supercapacitors. The resulting samples were carefully characterized by X- Ray
Diffraction (XRD), Scanning Electron Microscope (SEM) with Energy Dispersive X- Ray Analysis
(EDX), Transmission Electron Microscope (TEM), and X-Ray Photoelectron Spectroscopy (XPS)
respectively.The electrochemical measurements were systematically applied to investigate the
performance of the ZnCo2S4 nanomaterials electrodes. The supercapacitor performance of ZnCo2S4
nanoparticles presented an obvious enhancement in specific capacity and cycling stability.
Electrochemical impedance spectroscopy result illustrated that the prepared sample possesses a much
lower charge transfer resistance. The experiment proved that the ZnCo2S4 nanoparticles are
promising electrode materials for next generation of energy storage devices.
(SC (NH2)2),
TERNARY METAL
SULFIDES
CALCINATION
Zn(NO3)2
+6H2OCO(NO3)2
+6H2O
HRTEM image of prepared ZnCo2S4 nanoparticles
Fig 1. Synthesis of ZnCo2S4 Nanoparticles .
ICMM-2019 186 Book of Abstracts
ICMM: 2108 | Assembly and Performance Study of tubular gelled valve-
reglated lead acid batteries with hybrid combination of AGM-GEL-PE
S. Sasi Rekha1,2, K. Venkateswara Rao1*, V. Naresh2, S.K. Martha2 1Jawaharlal Nehru Technological University, Hyderabad, 500085, India.
2Indian Institute of Technology, Kandi, 502202, India.
*Corresponding author. Mobile: (+91) 9440858664; E-mail: [email protected]
Abstract
In this paper, the work reports on successful attempt to study the assembly & performance
characteristics of Gelled Tubular VRLA batteries and Hybrid tubular gelled VRLA batteries.
Comparative studies &performance characteristics were explained for both the type of batteries. Both
the prototypes were tested to study & compare the C/10 rate of discharge performance. The study on
cycle life seems to be very advantageous based on this work. Hybrid tubular gelled VRLA prototype
cells having hybrid combination of absorbent glass matt (AGM) & Sintered Poly ethylene (PE)
ribbed separator, which has the characteristics of both the separators. The hybrid tubular gelled
VRLA prototypes has the gelled system consisting of 6 wt% fumed silica immobilized in 30 wt%
sulphuric acid solution, which increases the heat capacity of the battery, thus gives good thermal
stability to battery and have significant advantages over flooded VRLA& Gelled tubular VRLA
prototypes. Teardown analysis of hybrid combination prototypes by Scanning electron microscopy
(SEM) &transmission electron microscopy (TEM) indicated the morphological studies, composition
explained about stability during prolonged cycling at different temperature ranges. X-ray diffraction
(XRD) studies after post mortem, indicated structural analysis before & after cycling. By conducting
life cycle test, we achieved more number of cycles for this hybrid combination than that of Gelled
Tubular VRLA batteries. The effect of this hybrid combination construction was clearly
demonstrated & explained herein based on test results.
Keywords: Hybrid Tubular Gelled VRLA Battery, Silicon Dioxide, Gelled Electrolyte, Sintered Ploy
Ethylene Separator, Absorbent Glass Mat separator, Tubular gel battery Cyclic life.
Acknowledgements Please acknowledge the funding authorities and other research supports.
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ICMM-2019 187 Book of Abstracts
ICMM: 2113 | Synthesis, Structural and Electrochemical Properties of Ce and
Ni Substituted LiMn2O4 Cathode Material for Li-ion Batteries
S.J. Margarette1, *N. Murali2, V. Veeraiah1, M. Indira Devi1
1Department of Physics, Andhra University, Visakhapatnam, 530003, India
2Department of Engineering Physics, Andhra University College of Engineering (A),
Andhra University, Visakhapatnam, 530003, India
*Corresponding author. Mobile: (+91) 9703725707; E-mail:[email protected]
Abstract
The two elements Ce and Ni are doped in the cathode material (LiMn2-x-yCexNiyO4 where x =
y = 0 and 0.02) for studying the various properties related to its structure and electrochemical
conductivity. The method adopted is sol-gel auto-combustion with citric acid taken as the chelating
agent. The formation of the structure is done by XRD which is cubic spinel. The particle sizes are
found to be 156 to 168 nm which is found from FESEM. The results from cyclic voltammetry
detailed about the transfer of electrons and hence change in the potential difference. The EIS
measurements also confirmed the same. The rate of fading and capability are known from charge-
discharge studies. At the minimum value of doping concentration 0.02, the sample showed much
improvement in the capacity and capability. The sample with doping concentration, 0.02 exhibited
good cyclability after 20 cycles.
Keywords: Sol-gel method; cubic spinel structure; XRD; Charge-discharge.
Acknowledgements The author, S. J. Margarette is thankful to UGC for providing aid through Maulana Azad National
Fellowship, New Delhi, India.
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ICMM-2019 188 Book of Abstracts
ICMM: 2116 | Ag Nanoparticles Decorated Porous TiO2-ZrO2 Composite as Aspatially Homogenous Surface Enhanced Raman Scattering Substrate
Hareesh. S.1, Sanu Mathew Simon2, Prakashan V.P.2, Twinkle Anna Jose1, Saritha A.C.2, Cyriac Joseph2, Biju P.R.2, Unnikrishnan. N.V.2* 1Department of Physics, Sacred Heart college, Thevara, Kochi-682013,India
2School of Pure and Applied Physics, Mahatma Gandhi University,Kottayam-686560,
India
*Unnikrishnan.N.V.. Mobile: (+91) 9745047850; E-mail: [email protected]
Abstract
Surface Enhanced Raman Scattering (SERS) is a sensitive spectroscopic technique that enhances the
Raman signals by orders of magnitude, which can be extended for the detection of natural dyes,
analysis of bio-molecules, single molecule spectroscopy and in different sensing applications. For
dye-based samples, under normal conditions fluorescence peaks dominates over Raman signals
whereas, SERS allows the existing samples those are initially may not be ideal for Raman analysis.
In the present work we developed porous Titania-Zirconia thin films with Pluronic F-127 and poly
methyl methacrylate (PMMA) with aid of a low cost and simplest sol-gel technique. Incorporating
silver nano particles at different molar concentrations layer by layer acts as a sufficient SERS
substrate. Due to the presence of silver nano particles the surface plasmon resonance enhancesthe
weak Raman signals. Rhodamine 6G (R6G) in 10-3
to 10-18
M is chosen as the probe molecule for the
evaluation of Raman enhancement over the substrate optimized with molar concentrations of 0.75M
Ag nano particle over Titania-Zirconia thin film. Rhodamine6G concentration up to 10-18
M detected
using Raman analysis shows the high sensitive nature of the SERS substrate thin films.
Keywords: Surface Enhanced Raman Spectra, Rhodamine 6G , sol-gel.
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ICMM-2019 189 Book of Abstracts
ICMM: 2121 | Investigation on Nano CaTiO3 Filler Infused Plasticized PVdF-
co-HFPand PEMA Blended PVdF-co-HFP / Lithium (bisperfluoroethan-
esulphonyl) imide Composite Electrolyte for Lithium-ion Batteries
N. Sangeetha1, P. Vickraman* 1Solid State Ionics Lab, Department of Physics, The Gandhigram Rural Institute -
Deemed to be University, Gandhigram-624 302, Dindigul District, Tamil Nadu, India
*Corresponding authorMobile: (+91)9443447511; E-mail:[email protected]
Abstract
The PolyvinyldineFlouride-co-Hexafluoropropylene(PVdF-co-HFP) and Polyethylmetha
acrylate (PEMA) blended PVdF-co-HFP nanocomposite electrolytes ionic conductivity, molecular
complexations and thermal stability have been studied in terms of the concentration dependence of
plasticizer-filler weight ratio. The A.C. impedance studies in the frequency range 50Hz-5MHz have
demonstrated that the minimal content 2.5wt% of filler dispersoid showed 1.17x10-6
Scm-1
whereas
the higher content 10wt% reduced its magnitude to three fold 4.20x10-6
Scm-1
accounts for the ionic
transport through the flexible polymer chains. The FTIR spectroscopy studies confirm PEMA
complexation with PVdF-co-HFP and other constituents. The thermal studies by the DSC reveal that
PVdF crystallites melting has surfaced between 1350C to 145
0C indicate the vdF crystallites partial
melting which is followed subsequently followed in three terminal endotherms respectively at 1800C
and 2800C and 380
0C in filler-free nanocomposite electrolyte brings forth the crystallites melting are
dependent on the polymorphism (α, β, γ and δ phases) of the PVdF i.e. increase in filler content
which drastically affect the crystallites domains exist in different phases indicate that CaTiO3 has
enormously controlling the melting endotherm of PVdF crystallites have been seen. One of the
peculiar anomaly in DSC thermogram on the effect of PEMA with PVdF noted that the strong
exothermic event registered for its lower content with PVdF and its equal content with PVdF have
reversed as their enodothermic events at higher content of PEMA with lower PVdF and without
PVdf remarks that the PEMA plays a role for facilitating the plasticizer not to allow the vdF
crystallites for melting have been observed in this study. Thus the crystallites melting and increase
in amorphous phase forms the basis for the ionic movement through the polymer chains has been
noted in the investigations.
Keywords: Polymer blend nanocomposite; ionic conductivity; thermal studies; FTIR studies.
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ICMM-2019 190 Book of Abstracts
ICMM: 2123 | Influence of Thermal Treatment on the Physical Properties
ofBismuth Ferrite Nanoceramics for Promising Multifarious Device
Applications
Waseem Ahmad Wani1, Kannan Ramaswamy1, Souvik Kundu2, B. Harihara
Venkataraman1* 1Department of Physics, Birla Institute of Technology and Science (BITS) -Pilani,
Hyderabad Campus, Hyderabad - 500078, India
2Department of Electrical and Electronics Engineering, Birla Institute of Technology and
Science (BITS) -Pilani, Hyderabad Campus, Hyderabad - 500078, India
*Corresponding author. Mobile: (+91) 9652009757; E-mail:[email protected]
Abstract
The emergence of multiferroic materials has recently paved a way for theirengrossing
applications invarious devices such as spintronics, memory, sensors and photovoltaics [1]. Bismuth
ferrite(BFO) materialappears to be a potential candidate especially for memory and photovoltaic
devices owing to its intriguing features like low optical bandgap (2.08 - 2.7eV), large remnant
polarization(90 µC/cm2) and co-existence of different ferroic orders [2,3]. However, the practical
application of this material is still hindered due tothe inherent limitations which include large leakage
current density and pure phase formation of BFO compound. Keeping this view in mind, we have
successfully synthesized the pure phase of BFO nanoceramics by adopting low temperature sol - gel
synthesis route and studied the effect of annealing temperature and time on thestructural,
morphological, optical and dielectric properties of these ceramics. The as-prepared samples were
calcined at 400oC and subsequently annealed at various temperatures (500
oC, 550
oC, 600
oC) for
different durations (2h, 4h, 6h). Interestingly, the sample annealed at 550oC for 2h almost yielded
pure phase of BFO ceramics and the average crystallite size of these ceramicscalculated based on
Williamson-Hall method was found to be increasing with both increase in annealing temperature and
duration. The infrared spectra (FTIR) recorded for all these samples exhibited strong absorption
bands in the range of 400-600 cm-1
which corroborated the perovskite structure of BFO
nanoceramics. The microstructural analyses have revealed the existence of granular shaped grains
with negligible porosity in all the samples studied. However, the samples annealed at higher
temperatures for longer duration showed the agglomeration of the grains in the scanning electron
micrographs. The optical bandgap was determined for all the samples prepared under various
annealing conditions by using Kubelka-Munk method. It is interesting to note that the value
ofbandgap of these ceramics could be tuned as a function of annealing temperature andduration. For
instance, the value of the optical band gap obtained for the pure sample annealed at 550oC for 2h was
found to be 2.08 eV. The dielectric properties of pure BFO nanoceramicswere carried out by using
LCR meter in the frequency range of 20Hz - 1MHz at 300K and the dielectric constant was found to
decrease with increase in frequency.Therefore, the tailoring of physical properties of BFO
nanoceramics in the present work by aforementioned thermal treatment parameterscould be
beneficial for designing memory as well as photovoltaic devices.
Keywords: Multiferroics; Bismuth ferrite; Bandgap; Dielectric properties
Acknowledgement We acknowledge DST - SERB for funding this project and also BITS - Pilani, Hyderabad campus for
providing infrastructural facilities to carry out this work.
ICMM-2019 191 Book of Abstracts
ICMM: 2125 | Silver Nanoparticles on Modified Flexible Substrates for
Electronics Applications Gurumurthy S. C.1*, Anju Jolly1, Koduri Ramam2, Shridhar Mundinamani3, B. SNagaraja4
1Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher
Education, Manipal -576104, India 2Departamento de Ingeniería de Materiales (DIMAT), Facultad de Ingeniería (FI),
Universidad de Concepción (UdeC), Concepción, CHILE. 3Department of Physics, Siddaganga Institute of Technology, B H Road, Tumakuru-
572103,India 4Department of Physics, NMAM Institute of Technology, Nitte, Udupi- 574110,
Karnataka, India
*Corresponding author. Mobile: (+91) 9449740014; E-mail:[email protected]
Abstract
The development of high performance flexible electronics applications requires dielectric materials
possessing a high dielectric constant and enhanced mechanical stabilitywith time [1,2]. Generally
most of the polymers are flexible and stretchable. It is appropriate to disperse or embedded metal
nanostructures in the polymer substrates for flexible electronics applications. In the present work
silver nanoparticles have been embedded by evaporating silver on modified polymer substratesin a
vacuum of 10-6
torr, which are kept above the glass transition temperature of the polymers. We have
used polyvinyl alcohol (PVA), polystyrene (PS) as polymer substratesand these were modified by
doping and also by electron beam irradiation. Optical absorption studies shows a significant shift in
absorption maxima towards higher wavelength on modified substrates compared to non-modified
substrates indicating a change in morphology, which is further confirmed by electron microscopy.
Keywords: Nanoparticles; modified substrates; Optical studies
Acknowledgements
Authors would like to thank Dr. Mohan Rao K, Manipal Institute of Technology for extending the
lab facilities to carry out the research work.
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ICMM-2019 192 Book of Abstracts
ICMM: 2127 | A Theoretical Study of Non Linear Optical Responses and
Photo-absorption in Carbon Doped Boron Cluster
Shakti S Ray1*, Rakesh K Sahoo, Sridhar Sahu1 1High Performance Computing Lab, Indian Institute of Technology (Indian School of Mines),
Dhanbad, Jharkhand, 826004, India
*Corresponding author. Mobile: (+91) 9852484124; E-mail:[email protected]
Abstract
Herein, we investigated the nonlinear optical (NLO) response and optical absorption spectra
of the carbon doped boron cluster (CB10) along with its isomer within the principles of density
functional theory (DFT) and time-dependent density functional theory (TDDFT) respectively.
Optical absorption spectra of carbon doped boron cluster were computed using exchange-correlation
functional such as; CAM-B3LYP and wb97xD employing 6-311++(2d,2p) basis set.The calculated
absorption spectra of the studied compounds mostly fall in the ultraviolet (UV) regionin the range
236 nm-382 nm (B10), 227 nm-317.26 nm (B10C-I), and 237nm - 397 nm (B10C-II) for both the
methods respectively. The most prominent peaks of the studied clusters were observed at around 313
nm, 233 nm and 397 nm respectively. In addition, we noticed a very minimal peak in the near visible
region in the range between 609 nm–640 nm for all the studied clusters. However, we observed a red
shift of around 80 nm and 45 nm for B10C-I and B10C-II respectively. Static polarizability and
hyperpolarizabilities were also computed. It has been observed that the carbon doping enhance the
NLO responses by narrowing its HOMO-LUMO gaps whereas reverse observation was found in case
of its isomers computed. The results might open new perspectives for further development of
designing novel promising electro-optical boron-based nanomaterial.
Keywords: Optical absorption; boron cluster; UV region.
Acknowledgements Authors thankfully acknowledge IIT(ISM), Dhanbad for providing research facilities.
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ICMM-2019 193 Book of Abstracts
ICMM: 2129 | Ionic Liquid Modified Photoelectrode for Enhanced Flexible
Dye Sensitizedsolar Cell Performance with Semi-Transparent
Electrodeposited Molybdenumdisulphide Counter Electrode
M. Gurulakshmi, A. Meenakshamma, M. Raghavender *
1Department of Physics, Yogi Vemana University, Kadapa-516005, A.P., India
*Corresponding author. Mobile: (+91) 9885069418; E-mail: [email protected]
Abstract
Semi-transparent, molybdenum disulphide flexible counterelectrodes (CE) realized through
electrodeposition method1. Low temperature TiO2 solution deposited on conducting PEN substrate,
sensitized with N719 dye followed by surface modification with 1-Vinyl,3-methyl imidazolium
iodide (VMImI, ionic liquid). A ionic liquid electrolyte injected into sandwiched type flexible dye
sensitized solar cell (F-DSSC)2. The surface modified photoelectroded test cell (0.16 cm
2 active area)
witnessed enhanced current density value of 12.56 mA/cm2 and power conversion efficiency (PCE)
4.84 % is higher than unmodified PE based F-DSSC (11.46 mA/cm2 and 4.35 %). For comparison,
platinum based flexible DSSCs with modified PES are fabricated revealed 6.08 % of PCE.The semi-
large area flexible DSSC module with MoS2CE gave 3.66 % of PCE, the results are presented.
Keywords:Flexible DSSC, MoS2 counter electrode, Imidazolium iodide, Surface modification,
Transparent DSSC module.
Acknowledgements
M. Gurulakshmi is thankful to DST-INSPIRE for awarding JRF, financial support through IF
160564. M. Raghavender thanks SERB, DST (Grant No. EMR/2016/007049) for financial support.
ICMM-2019 194 Book of Abstracts
ICMM: 2130 | Improving the Electrochemical Performance of Zn Doped
LiNi0.8Co0.1Mn0.1O2 Cathode Material for Li-Ion Batteries
V. Kondala Rao1*, N. Murali2, V. Veeraiah1, K. Samatha1
1Dept.of Physics, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, Indi
2Dept. of Engineering Physics, AU College of Engineering (A), Andhra University,
Visakhapatnam, Andhra Pradesh, 530003, India
*Corresponding author. Mobile: (+91) 83744 51096; E-mail:[email protected]
Abstract
The LiNi0.8-xZnxCo0.1Mn0.1O2 (x = 0.0 and 0.05) cathode materials are synthesized by the
sol-gel auto-combustion method. The structure, morphology and bonding nature of the synthesized
materials are characterized by XRD, FE-SEM with EDS and FT-IR studies. It is observed that the
lattice constant values for the Zn substituted layered materials are increasing than the base material
LiNi0.8Co0.1Mn0.1O2. As a result, more Li+ could be inserted/extracted. The charge/discharge curves
of the synthesized materials with the current rates of 0.1C between 2.6 V and 4.8 V is shown at room
temperature. The charge/discharge capacities for the first and second cycles are 176.1/162.7 and
163.7/150.3 mAh/g−1
respectively with capacities of 92.4 % and 91.81 % respectively.
Keywords: Ni-rich; LiNi0.8Co0.1Mn0.1O2; Cathode material; Charge/Discharge.
ICMM-2019 195 Book of Abstracts
ICMM: 2140 | Room Temperature Magnetoelectric Properties of Fe75Ga25-
(Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 Laminates N. Pavan Kumara,b, Himalay Basumatarya, Atal Bihari Swainc, V. Subramanianc, A.
Srinivas*a
a Advanced Magnetics Group, Defence Metallurgical Research Laboratory, Kanchan
Bagh, Hyderabad – 500058-India bPresent Address
Matrusri Engineering College, Saidabad, Hyderabad-500059 cDepartment of Physics, Indian Institution of Technology Madras, Chennai 600036, India
*Corresponding author. Mobile: (+91) 9441423457; E-mail:[email protected]
Abstract
Over the past two decades, multiferroic materials in its composite forms have been an
important topic of research with a variety of applications such as low-power sensors, energy
harvesting devices, memory devices, magnetic refrigeration etc., have been investigated.In this work,
a tri-layer laminates of Fe75Ga25-(Ba0.85Ca0.15)(Zr0.1Ti0.9)O3-Fe75Ga25 has been fabricated and their
magnetoelectric properties were studied for energy harvesting applications. For this purpose, a lead
free piezoelectric (Ba0.85Ca0.15)(Zr0.1Ti0.9) ceramic powder has been prepared through solid state
reaction method and sintered at 1500oC for 5hr. Its structure has been confirmed with XRD analysis.
The Ferroelectric hysteresis loops were measured with a Prof 5.8 μC-cm-2
has been recorded.
Samples were poled at 1 kV for 10 minutes and piezoelectric charge coefficient (d33) values were
found to be in the range of 200 to 260 pC/N. On the other hand,Fe75Ga25 alloy was prepared by
powder metallurgy route by maintaining the proper Fe and Ga ratio’s and confirmed its A2 phase
structure. Magnetostriction of ~140 µ-strains has been achieved in this alloy. Finally, a tri-layer
laminate structure consisting of Fe75Ga25-(Ba0.85Ca0.15)(Zr0.1Ti0.9)-Fe75Ga25 has been made with the
thickness of 1mm each and with a diameter of 12 mm. Magnetoelectric measurement were
performed and showed a ME coefficient of 13 mV/Oe-cm. The results are discussed and compared
with the literature.
Keywords: Lead-free Piezoelectric, BCZT ceramic, Fe-Ga alloy, Magnetoelectric coefficient.
Acknowledgements
The authors thank Group Head and staff of Advanced Magnetics Group, DMRL forthe support.
Authors also thank Director, DMRL for giving the necessary permission to publish this work.
ICMM-2019 196 Book of Abstracts
ICMM: 2144 | Molecular and Dielectric Relaxation Studies on 2-
Chloroaniline with 2-Methoxyethanol binary Solutions Using Time Domain
Reflectometry
Bhupesh G. Nemmaniwar Department of Physics Digambarrao Bindu Arts, Commerce and Science College,
Bhokar, Dist. Nanded – 431605(MS) India.
Mobile No. 9423306864, E-mail –[email protected]
Abstract
The dielectric relaxation measurements in the frequency range of 10 MHz to 30 GHz and at
temperature range of 0 °C to 25 °C using a picosecond time domain reflectometry technique have
been carried out over entire concentrations of binary mixtures 2-Chloroaniline with 2-
methoxyethanol. The complex dielectric permittivity spectra of 2- CA with 2-ME binary mixture
were fitted using Havriliak–Negami equation. The static dielectric constant and relaxation time for
all concentrations were obtained using least square fit method. The principal relaxation time is small
if compared to that of corresponding aniline/alcohol binary mixtures this may be due to the hydrogen
bonding ether oxygen in the 2-CA/2-ME system. The results are interpreted in terms of
heterogeneous interactions among the unlike molecules due to hydrogen bonding.
Keywords: Dielectric Permittivity, Dielectric loss, Relaxation time, Static dielectric constant, 2-
Chloroaniline with 2-Methoxyethanol.
Acknowledgements
Authors are thankful to School of Physical Science Swami Ramanand Teerth Marathwada
University, Nanded for availing the laboratory facility. We also thank Prof. Kumbharkhane A.C. for
the discussion and help full suggestion.
ICMM-2019 197 Book of Abstracts
ICMM: 2156 | Semimetallic Nature of MTe (M = Ca, Sr, Ba) Under High
Pressure Lavanya Kunduru1*, Suresh Sripada2, S. C. Rakesh Roshan3, N. Yedukondalu3, M. Sainath3
1 Department of Physics, JNTU, Hyderabad, 500085, Telangana, India
2Department of Physics, JNTUHCEJ, Nachupally,505501 Karimnagar, Telangana, India
3 Department of Physics,RGUKT, Basar, 504101,Telangana, India
*Corresponding author. Mobile: (+91) 9908797832; E-mail:[email protected]
Abstract
We report pressure induced structural, topologicalphase transitions and Fermi surface in MTe
(M = Ca, Sr, Ba) compounds under high pressure using first principles calculations based ondensity
functional theory. CaTe[1], SrTe[2] and BaTe compounds undergo first order structural
phasetransition from NaCl-type (B1) to CsCl-type (B2) phase at 24.2, 14.7, 4.9 GPa respectively and
are consistent with the experimental observations [3].Electronic structure of MTe compounds were
calculated using Tran Blaha-modified Becke Johnson(TB-mBJ) potential and its new
parameterizations. The calculated band gaps are improved using TB-mBJ and itsnew
parameterization when compared to standard LDA/GGA functionals [4]. MTe compounds are found
to be indirect band gap semiconductors at ambient conditions and becomes semimetal upon further
compression. The high pressure B2 phase of (Ca/Sr)Te and BaTe are found to be node-line and
Dirac semimetals, respectively.
Keywords: High pressure, Topological phase transitions and Semimetal.
Acknowledgements The authors would like to thank RGUKT Basar for the computational facilities.
ICMM-2019 198 Book of Abstracts
List of Poster Presentations
ICMM-2019 199 Book of Abstracts
ICMM:101 | Complex permittivity and Permeability Properties Analysis of NiCuZn Ferrite-Polymer Nanocomposites for EMI Suppressor Applications
P. Raju*, Ch. Kalyani, J. Shankar, J. Anjaiah, G. NeerajaRani Department of Physics, Geethanjali College of engineering and technology, cheeryala, Hyderabad,
Telangana, India-501301.
*Corresponding author email: [email protected]
Abstract
The complex permittivity and permeability studies ofNiCuZnferrite-paraformaldehyde (NCZ-
PFD) nanocomposites for electromagnetic interference (EMI) suppressor applications arepresented.
The NCZFerrite and nanocomposites were prepared via microwave hydrothermal and ball-milling,
respectively. The nanocomposites were characterized by X-ray diffraction (XRD) and scanning
electronmicroscopy (SEM) the results indicate that the NCZ-PFD nanocomposites were successfully
prepared without impurities.The complex permittivity and permeability were measured over
frequency range of 8.2-12.4 GHz and 12.4–18 GHz. The results show that for nanocomposites, the
values of the real (ε′) and imaginary permittivity (ε″) and imaginary permeability (µ″) increase, while
the value of real permeability (µ′) decreases as the polymer content increases. Dielectric relaxations
were studied using cole-cole plots of complex permittivity. Magnetic relaxation dispersions were
analyzed using cole-cole plots of complex permeability. The possibility to modulate the
electromagnetic properties of the composite materials is of a great interest to fabricate microwave
absorbing and electromagnetic shielding materials with high performances.
Keywords: Nanocomposites; Ferrites; complex permittivity; complex permeability; cole-cole plots
ICMM-2019 200 Book of Abstracts
ICMM:111 | Optical Properties of Samarium doped Zinc Lithium Borate Glasses
Kavita Hanumar1, B G Hegde18 and N H Ayachit2
1Department of Physics, Rani Channamma University, Belagavi – 591 15, Karnataka,
India 2Centre for Material Science, KLE Technological University, Hubballi – 580 031
Karnataka, India
*Corresponding author. Mobile: (+91) 08277336421; E-mail: [email protected]
Abstract
Recently, glasses containing rare earth ions have evoked interest due to their potential applications in
solid state laser, display devices, sensors, reflecting windows, wave guides, 3D data storage devices
etc [1-3]. In particular, the Sm3+
ions in host glass material exhibit broad emission bands due to
4G5/2
6HJ (J = 5/2, 7/2, 9/2, 11/2) transitions in any host matrix. In order to obtain optimum
emission characteristics for device applications, the characteristic features of host as well as
concentration dependent studies of Sm3+
are essential [4,5]. In this regard a new series of samarium
doped zinc lithium borate glass were synthesized and its optical properties were investigated.
Samarium doped zinc-lithium borate glass having composition of Sm2O3/ZnO/B2O3/Li2O3 were
prepared by melt quenching method. The samples show non crystalline nature confirmed by XRD.
The density and corresponding molar volume are measured. The optical absorbance studies were
carried out on these glasses to measure their energy band gap. The absorption spectra of theses
glasses were recorded in UV-Vis region. No sharp peaks were found in optical spectrum which
verifies the amorphous nature of glass. The optical emission study is in progress.
Keywords: Borate glasses; samarium doping, optical property.
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ICMM-2019 201 Book of Abstracts
ICMM:112 | Exploration of Lead-free Magneto-electric
0.85(Na0.49K0.9Bi0.5TiO3) – 0.15(CoFe2O4) Particulate Composite for Sensor
Application
Munendrapal1, Adiraj Srinivas2* Saket Asthana1* 1Advanced Functional Materials Laboratory, Department of Physics, Indian Institute of
Technology Hyderabad, Kandi, Telangana-502285, India. 2Advanced magnetics group, Defence metallurgical research laboratory Kanchanbagh,
Hyderabad, India.
*Corresponding author. Ph: (+91) 4023016067; E-mail:[email protected]
E-mail: [email protected]
Abstract
The materials which having more than one ferroic ordering (i.e., ferroelectricity,
ferromagnetism,ferroelasticity) simultaneously are known as multiferroics, and a have great
importance in developing magnetoelectric devices. These materials exhibit magnetoelectric effect
(ME) which,allows the coupling between ferroelectric and ferromagnetic order parameters. However,
so far, no single phase multiferroics are appropriate for applications because of their weak
magnetoelectric coupling at room temperature. Multiferroic composite is the best substitute of single-
phase multiferroic to enhance the magnetoelectric coupling. Lead-based multiferroic composites
have very high magnetoelectric coupling, but their uses are limited owing to the toxic nature of lead.
In this work,Na0.49K0.9Bi0.5TiO3(NKBT) and CoFe2O4 (CFO)have been chosen forthe lead-
freeparticulate composite because of their enhanced piezoelectricand magnetostrictive properties,
respectively1,2
.The magneto-electric composite (1-x) Na0.49K0.9Bi0.5TiO3 –xCoFe2O4 where (x=15
wt%) were synthesized by solid state reaction method1. The formation of hybrid composites and
appearance of closely packed grains were confirmed by X-ray diffraction and SEM measurements,
respectively. The backscattered micrograph confirms the evidence of phase separation of CFO and
NKBT. Thedielectric constantof the 85NKBT-15CFO is found to be ~5000 at 300⁰C and 100 kHz
which is higher than pure NKBT. The dielectric measurement of the poled samples was also
performed along with the unpoled samples. At room temperature poled sample shows the resonance
and anti-resonance peaks at a particular frequency range (~450 kHz to 455kHz). The magnetoelectric
coupling study has been done by measuring the magnetocapacitance up to 1-teslain an external
magnetic field.Moreover, interesting observations are found through comprehensive magnetic as well
as electrical studies. It can be concluded from this study that the 85NKBT-15CFO particulate
composite shows multifunctional property with usable dielectric, ferroelectric, magnetic and
magnetoelectric coupling which can be used for possible applications like, magneto-electric field
sensors and multistate memory and others.
Keywords: Multiferroic particulate composite; Magnetoelectric coupling; Magneto-capacitance;
magneto-electric field sensors.
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ICMM-2019 202 Book of Abstracts
ICMM:115 | Magnetic and Dielectric Studies of Ba0.5Sr0.5Fe12O19 Prepared by
Solid State Reaction Method
V. Argish1, M.G. Shalini1, Subasa. C. Sahoo1,* 1Department of Physics, Central University of Kerala, Kasaragod, 671316, India
*Corresponding Author, Mobile: (+91) 9495101200; E-mail:[email protected]
Abstract
Ba0.5Sr0.5Fe12O19 was synthesized using solid state reaction method. The sample was
characterized by XRD, Raman, FTIR and SEM. Structural studies showed the presence of singe
phase in the sample. Lattice parameters were found to be 5.886 Å and 23.134 Å. Microstructural
studies showed platelet type structures in the sample. Magnetic properties were studied at different
temperatures ranging from 300K to 60K by applying field upto 30kOe. The spontaneous
magnetization (Ms) increased whereas coercivity decreased with the decrease in measuring
temperature. The highest Msvalue of 84 emu/g was observed at 60K and the highest coercivity of
3.12 kOe was observed at 300K. Dielectric studies were done at different temperature. Dielectric
constant and resistivity decreased with the increase in frequency whereas ac conductivity increased
with frequency.
Fig.1. (a) XRD pattern and (b) M-H Loop of Ba0.5Sr0.5Fe12O19 annealed at 1200°C.
Keywords: Hexaferrite, Magnetization, Coercivity, Dielectric Studies
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ICMM-2019 203 Book of Abstracts
ICMM:116 | Thermo Magneto Electric Effects in Ferromagnetic Mild Steel,
Cobalt and Nickel as Core Materials in Vertical set up: Comparative Study
Mandava Sridhar1*, G. Patrick2 and J. Kishore Babu3 1,2,3
Department of Physics, Gokaraju Rangaraju Institute of Engineering and Technology,
Bachupally, Hyderabad, 500090, India.
*Mandava Sridhar: (+91) 9866939966; E-mail: [email protected]
Abstract
The voltage induced in the coil (solenoid or inductor) depends on number of turns of coil, rate of change
of flux and permeability of core material. It was observed that the induced voltage in a coil can be
further increased, if the temperature of ferromagnetic core material is increased. The variation of
inductance and effective resistance of the coil in the presence of heated ferromagnetic cores and
Coefficient of induced voltage,Coefficient of permeability for different ferromagnetic core materials are
also measured. All these parameters were measured for ferromagnetic Mild Steel, Cobalt and Nickel as
core materials in horizontal setup and vertical set up. In this paper variation of induced voltage,
inductance, effective resistance of the coil and Coefficient of induced voltage, Coefficient of
permeability in the presence of heated ferromagnetic Mild Steel, Cobalt and Nickel as core materials are
measured and reported in the vertical setup as comparative study.
Keywords:Induced voltage; Inductance; Effective resistance; Thermal treatment; Solenoid
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presenting
author.
ICMM-2019 204 Book of Abstracts
ICMM:118 | Vegetable Assisted the Green Synthesis of Gold Nanostructures
and its Nonlinear Optical Properties
Ramya Emusani1*, L. Jyothi2, D. Narayana Rao2
1MLR Institute of Technology, Hyderabad-500043, India
2School of Physics, University of Hyderabad, Hyderabad-500046, India
*Corresponding author. Mobile: (+91) 9494228623; E-mail: [email protected]
Abstract
Ecofriendly, cost-effective bio-synthesis of gold nanostructures (Au NSs) by using Daucus carota
subsp. Sativus and Cucumis sativus extracts were synthesized efficiently. The plasmonic peaks of
Daucus carota subsp. Sativus and Cucumis sativus extract synthesized Au NSs exhibited at λmax = 554
nm and λmax = 560 nm, owing to excite of surface plasmon vibrations of Au NSs and are responsible for
a dark pinkish color. Formation of NSs is due to ionization of phenolic groups of vegetable extract.
These extracts act as reducing and capping agents in the formation of nanostructures. These metal NSs
are stable for a few months. TEM images of Au NSs revealed that they are in spherical and triangle
shapes with face-centered cubic (FCC) structure. The spherical shape of Au NSs of average diameters is
51 nm and 53 nm respectively. The effect of NSs on the luminescence of Eu(TTFA)3 and Sm(TTFA)3
complexes was investigated with 350 nm excitation. Luminescence quenching is observed for Eu3+
,
Sm3+
with different concentrations of Au NSs in an exponential fashion. In both cases, the electric-
dipole and magnetic dipole transitions are quenched with an increase of Au NSs. The quenching is
occurring owing to re-absorption of NSs. Nonlinear optical studies of metal NSs are estimated with a Z-
scan technique using 800 nm, 110 fs pulses at 1 kHz repetition rate [1]. Au NSs exhibited reverse
saturable absorption (RSA) due to excited state absorption (ESA) and third-order nonlinear absorption
coefficients, optical limiting threshold values for both Au NSs are of the order of10-10
cm2/W and 10
mJ/cm2
respectively. Au NSs can be used as luminescent probes and optical limiters.
Keywords: Green synthesis; Metal Nanostructures; Nonlinear optical properties
Acknowledgments
This research was supported by Basic Science Research programme through the University Grant
Commission (UGC - BSR), India.
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ICMM-2019 205 Book of Abstracts
ICMM:121 | Effect of Doping on Defect Modes of 2D Photonic Band Gap Crystals
Saranya Narayanan, B.V.R Tata* University of Hyderabad, Hyderabad, 500046, India
*Corresponding author. Mobile: (+91) 7907259499; E-mail:[email protected]
Abstract
Photonic band gap crystals (PBCs) are studied for their band structure with considerable interest
because they offer the possibility to control the propagation of light to an unprecedented level. Because
of this reason, PBCs have gained importance for designing novel molecular and bio-sensors. Here we
report numerical simulation results obtained by performing calculations for a 2D periodic dielectric
structure of cylinders (i.e. photonic crystals made up of dielectric rods) whose centres occupy the
positions of a square lattice with a lattice constant of 600nm. We have performed Electromagnetic
calculations using Finite Element Method by employing COMSOL Multiphysics software.The band
structure of the infinite crystal is calculated using Plane Wave Method using MIT Photonic Band gap
Package software. The calculated reflectance spectra showed three bands (582nm to 644nm, 730nm to
836nm, and 1022nm to 1146) for refractive index contrast of 2.98. In order to study the property of a
resonator, a point defect is introduced by replacing the dielectric cylinder with an air-cylinder. A sharp
dip within the band gap of the reflectance spectra is observed and is attributed to the localized mode
associated with the defect. Q-factor associated with the localized mode is calculated.The effect of
refractive index and size of the defect on the localized mode frequency and Q-factor have been
investigated and results are reported here.
Keywords: Photonic crystal; Defect mode; Q-factor; photonic band structure
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ICMM-2019 206 Book of Abstracts
ICMM:130 | Non-linear Optical Studies of Cadmium Magnesium Oxalate
Crystals Grown by Gel Method
Mangala M Sanjeevannanavar1, Jagannatha N1*, and Rohith P.S.1
1PG Department of Physics, FMKMC College, A Constituent College of Mangalore University, Madikeri-
571201, Kodagu, Karnatak, India
*Corresponding author. Mobile: (+91) 9448903732; E-mail:[email protected]
Abstract
The growth of Cadmium Magnesium Oxalate (CMO) crystals were achieved successfully by
gel technique. The effect of various parameters such as specific gravity of Sodium Meta
silicate(SMS), concentration of oxalic acid solution, concentration of reactants cadmium chloride and
magnesium chloride, gel set time of the crystals have been studied. The study of FTIR spectrum
reveals the presence of various bands of functional groups. The study of UV-Vis spectrum shows that
optical transparency of the grown crystals. The absorption co-efficient and energy band gap were
discussed and reported.
Keywords: Gel method; FTIR; UV-Vi
Acknowledgements
Authors are thankful to Mangalore University for Sanction of fellowship, PURSE and USIC for
providing laboratory facility.
ICMM-2019 207 Book of Abstracts
ICMM:131 | Influence of Alkaline Earths on EPR spectra of Lithium Borate
Glasses Doped with Fe (III) ions.
Ashok Bhogi1 and P. Kistaiah2
1VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, Telangana,
India. 2Department of Physics, Osmania University, Hyderabad, Telangana, India.
*Corresponding author. Mobile: (+91) 9000765579; E-mail: [email protected]
Abstract
Lithium borate glasses containing Fe (III) transition metal ion having composition 15RO-
25Li2O-59B2O3-1Fe2O3 (where R= CaO, SrO and BaO) are synthesized via melt quench route. These
glasses were characterized using X-ray diffraction (XRD). Electron paramagnetic resonance spectra
of prepared glasses have been studied. The recorded spectra mainly consists of an intense resonance
signals at g ~ 4.282 and also at g ~ 2.0032 along with a shoulder in the region of g ~ 8.033 which is a
characteristic of iron ions in the (3+) valence state in all the studied glasses. The number of spins
participating in resonance (N) and its paramagnetic susceptibilities (χ) have also been evaluated. The
spin concentration and the paramagnetic susceptibility at g = 2.0032 and at g = 4.282 increase by the
substitution of alkaline earths from CaO to BaO respectively. The peak-to-peak line width ΔB for the
resonance lines at g ≈ 4.282 and at g ≈ 2.0032 and the line intensity of the resonance centered at g ≈
4.282 and at g ≈ 2.0032 have been evaluated. This EPR spectra has been analyzed in the light of
different oxidation states of iron ions in order to understand the influence of alkaline earths as
modifier oxide on the structure of glass matrix.
Keywords: Lithium borate glasses, X-ray diffraction, EPR spectra.
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ICMM-2019 208 Book of Abstracts
ICMM:136 | Luminescence Characteristics of Dy3+ Doped
Borofluorophosphate Glasses for White Emission Applications
Jismon Sebastian1, Subash Gopi2, Sreeja E2, Adon Jose2, Krishnapriya T2,
P.R. Biju2* 1 Sacred Heart college, Thevara, Ernakulam, 682013, India
2School of Pure and Applied Physics, M G University, Kottayam, 686560 India
*P.R. Biju. Mobile: (+91) 9446316179; E-mail:[email protected]
Abstract
The present work reports structural and luminescence studies on Dy3+
doped
borofluorophosphate (BFPDY) glasses prepared with the chemical composition of (40-x)B2O3 +
30P2O5 + 10ZnF + 10K2O + 10BaO + xDy2O3, where x = 0.1, 0.2, 0.5 and 1 mol% by melt
quenching technique. The structural and optical properties of the prepared glasses were analysed by
means of XRD, FTIR, UV-Vis absorption spectroscopy and photoluminescence emission and
excitation spectra. XRD results confirm the amorphous nature of glass and FTIR studies reveals the
presence of various stretching and bending vibrations of different structural units within the sample.
The optical absorption spectrum has been recorded at room temperature and different absorption
transitions were obtained and it is found that the transition via 6H15/2→
6P7/2 is more prominent. From
the absorption spectrum, optical band gap energy, nephelauxetic ratio (β) and the bonding parameter
(δ) were determined. Excitation spectrum was recorded in the region 300-500 nm by monitoring
emission at 572 nm and characteristic excitation bands were observed. The band at 348 nm arising
through the transition 6H15/2→
6P7/2 shows maximum intensity. The photoluminescence spectra of the
filled glasses have been recorded at an excitation wavelength of 348 nm and the spectra contain two
intense emission bands in the blue (483 nm) and yellow (572 nm) regions and a weak band in the red
region (663 nm). Concentration dependent variations in emission intensities were analysed. It is
observed from the emission spectra that the luminescence intensity increases with the increase in
Dy3+
ion content up to 0.5 mol% beyond that it decreases due to luminescence quenching. The Y/B
intensity ratio by varying the concentration of Dy2O3 is also studied. The emission intensity were
characterized through Commission International d’Eclairage (CIE) 1931 chromaticity diagram to
explore its suitability for white light emission applications.
Keywords: Nephelauxetic ratio; Luminescence quenching; Y/B intensity ratio; CIE color
chromaticity coordinates
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ICMM-2019 209 Book of Abstracts
ICMM:144 | Structural, Thermal and Optical Properties of 50Bi2O3-15MO-
20B2O3-15Li2O (where M= Zn, Cd, Ba and Pb) Glasses
aJ. Bhemarajam, bG. Upender,aM. Prasad* aDepartment of Physics, Osmania University, Hyderabad-500 007
bDepartment of Physics, Nizam College, Osmania University, Hyderabad-500 001
*Corresponding Author: [email protected]
Abstract
The glasses with the composition 50Bi2O3-15MO-20B2O3-15Li2O (where M= Zn, Cd, Ba and
Pb) were prepared by conventional melt quenching method. The glasses were characterized using X-
ray diffraction (XRD), Fourier Transform Infrared (FTIR), Differential Scanning Calorimetry (DSC)
and optical absorption. XRD patterns of the glasses confirmed the amorphous nature of the glasses.
FTIR showed that the glass networks consist of bismuthate and borate groups. The glass transition
temperature (Tg), onset crystallization temperature (To) and thermal stability (∆T) of all the glasses
were determined from DSC. The optical absorption studies revealed that the cut-off wavelength (λc)
decreases while optical band gap energy (Eopt) and Urbach energy (∆E) values increases with MO
content. Refractive index (n) evaluated from Eopt was found to decrease with varying of MO content.
The physical parameters such as density (ρ) molar volume (Vm), oxygen packing density (OPD),
optical basicity (Λ), molar refraction (Rm) and metallization criterion (M) were evaluated and
discussed.
Keywords: Glasses, FTIR, DSC and Optical absorption
ICMM-2019 210 Book of Abstracts
ICMM:146 | Synthesis, Structural and Magnetic Properties of
Multifunctional Spinel Ferrite Nanoparticles for Data Storage Applications
Shubhada Thorat*, Pooja Khedekar, Deepali Andhare, Supriya Patade, K.
M. Jadhav
1Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad
*Corresponding author. Mobile: (+91) 9284872832; E-mail:[email protected]
Abstract
In the present communication, we report the synthesis of pure cobalt ferrite nanoparticles using sol-
gel auto combustion method in which glycine was used as a fuel. The prepared nanoparticles were
characterized structurally by means of X-ray diffraction technique. The analysis of the XRD pattern
reveals the formation of single phase cubic structured compounds. The structural parameters like
lattice constant, X-ray density, Unit cell volume etc all are in good agreement with the literature
values. The crystallite size obtained through Debye-Scherrer’s formula found to be in nanometer
dimension exhibiting the nanocrystalline nature of the prepared samples. The magnetic properties
were investigated using pulsed field hysteresis loop tracer at 300K. The saturation magnetization
(MS) show significant enhancement as compared to bulk counterpart. The values of other magnetic
parameters like coercivity, remenance magnetization, magneton number etc obtained through M-H
hysteresis plot show the prepared multifunctional cobalt ferrite can be used for data storage
applications..
Keywords: Cobalt ferrite nanoparticles, sol-gel auto combustion, XRD, M-H plot.
Acknowledgements One of the authors Shubhada Thorat is thankful to Solapur University, Solapur for X-ray diffraction
facility.
ICMM-2019 211 Book of Abstracts
ICMM:154 | Structural and Optical Properties of ZnS/Graphene
Nanocomposite Films Formed by Homemade Spray Pyrolysis Unit
V.H.Choudapur1*, S.B.Kapatkar1, N.H.Ayachit2
1Department of Physics, B.V.B.C.E.T., Hubballi-580031, Karnataka, India
2K.L.E.Technological University Hubballi, 580031, Karnataka, India
*Corresponding author. Mobile: (+91) 9449973117; E-mail:[email protected]
Abstract
A ZnS/Graphene nanocomposite was prepared by direct mixing of graphene nanopowder to
ZnS colloidal solution prepared by hydrothermal method. At different concentrations of graphene,
the ZnS/graphene nanocomposites are synthesised keeping the substrate temperature constant at
3500C. The obtained mixture was sonicated and used for preparing thin films using our homemade
spray pyrolysis system. Uniform, adherent and transparent thin films are obtained. The films are
characterised by UV-Visible spectroscopy, Photoluminescence, X-Ray diffraction (XRD), Energy
dispersive spectroscopy (EDS) and scanning electron microscopy (SEM). The absorption spectrum
of composite shows the blue shift in the absorption peak as compared to intrinsic ZnS thin film. The
bandgap increased with increase in graphene concentration from 4.1eV to 4.9eV. The XRD and EDS
analysis confirm the compositeformation and purity of the samples. The SEM images show the
uniformity of thin films with granules agglomerated structures.
Keywords: ZnS/Graphene nanocomposite, homemade spray pyrolysis system, Chromatography
sprayer, SEM, XRD
Acknowledgements: This work is supported by Research and Development cell, B.V.B. College of
Engineering and Technology, Hubballi, under Capacity building projects. Authors thank K.L.E
Technological University and B.V.B.C.E.T., Hubballi for providing financial support.
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ICMM-2019 212 Book of Abstracts
ICMM:161 | Photoluminescence in KMgAlF6
Vartika S. Singh 1*, P. D. Belsare 2, S. V. Moharil 1 1Department of Physics, RTM Nagpur University, Nagpur 440033,India
2Physics Department, Shri RamdeobabCollege of Engineering and Management, Gittikhadan,
Nagpur 440013,India
*Corresponding author. Mobile: (+91) 6353304171, 9712011606;
E-mail: [email protected]
Abstract
KMgAlF6 belongs to group of such hexafluoro-aluminates like LiCaAlF6 [1, 2] and LiBaAlF6
[3], where they replace AlO3-3
by AlF6-3
.KMgAlF6 crystallizes in cubic system with space group Fd
m[4]. Very less studies regarding its luminescence properties and crystal structure are available in
the literature. Fluorides are generally prepared by solid state reaction. Fluorides are sensitive to
hydrolysis. Purification of fluorides is necessary to eliminate traces of water and to hinder the
formation of oxyfluorides. These treatments makes the solid state techniques cumbersome and
difficult.In recent years, some wet chemical syntheses for preparation of OH¯ free fluorides have
been discussed [5]. Hence, We have decided to try the wet chemical route for the synthesis
ofKMgAlF6compound. X-ray diffraction pattern of our sample was compared to that of standard
ICDD data in order to confirm the formation of the desired compound. XRD results confirmed the
formation of KMgAlF6 in our sample. After XRD measurements, our sample was doped with rare
earths such as Ce3+
/Eu2+
activators. Procedure is same for preparing doped samples except that
freshly prepared europium/ cerous solutions(in the desired proportions) were added prior to the
precipitation. Later, photoluminescence studies were carried out for KMgAlF6:Ce3+
and
KMgAlF6:Eu2+
.
Keywords: Fluoride; Luminescence; Phosphor, Wet-Chemical synthesis.
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ICMM-2019 213 Book of Abstracts
ICMM:162 | Rare Earth Based Insulating Nano Crystals for Plasma Display
Panels P. Chandar Rao1, Vishnu V. Jaiswal2, G. Ravinder1, C. J. Sreelatha1, D.
Haranath2,
1Materials Research Laboratory, Department of Physics, Kakatiya University,
Warangal,506009, India. 2Department of Physics National Institute of Technology, Warangal, 506004, India.
*Corresponding author. Mobile: (+91)9958101115; E-mail:[email protected]
Abstract
In plasma display panel, the Eu2+
activated barium magnesium Aluminate (BAM) phosphor has
been conventionally adapted as a blue emitting component in many displays due to its availability and
high (>98%) quantum efficiency. BaMgAl10O17:Eu2+
(BAM) phosphor was synthesized in two steps
using auto-combustion method followed by sintering in reducing atmosphere. The X-ray diffraction
analysis confirmed that the crystalline phase of BAM nanophosphor as hexagonal structure. The SEM
observation revealed a uniform distribution of rectangular-type of morphology for the as-prepared
nanophosphor. Detailed investigation of photoluminescence has done in the current paper. The results
are promising and suggest that the BAM nanophosphor is highly useful in enhancing the color purity in
the plasma display panel screens.
Keywords: Auto combustion; Nano phosphor; Photoluminescence; Color purity.
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ICMM-2019 214 Book of Abstracts
ICMM:165 | Low Temperature Synthesis, Structural, Cation Distribution and
Magnetic Studies of Cobalt Ferrite Nanoparticles
Farha Naaz, Aqsa Samreen, Shaikh Saima Anam, Shaikh Zeba Anjum, K.M.
Jadhav Dr. Babasaheb Ambedkar Marathwada University, Aurangabad.
*Farha Naaz, Mobile no.: 8830756447, E-mail: [email protected]
Abstract
Herein, we report the low temperature synthesis of multifunctional spinel cobalt ferrite (CoFe2O4)
using sol-gel auto combustion method, in which dextrose was used as a fuel. The reaction was carried
out at sufficiently low temperature of 110 degree celsius to obtain nanoscale particles of cobalt ferrite.
The obtained nanoparticles were structurally characterized by X-ray diffraction (XRD) technique using
CuK-alpha radiation. The XRD pattern show the reflections which belongs to cubic spinel structure. The
single phase formation and nanocrystalline nature was analyzed through XRD analysis. The crystallite
size estimated from the most intense peak (311) was of the order of 22 nm confirming the
nanocrystalline nature of the prepared samples. Using the XRD data, i.e. interplanner spacing (d) and
corresponding Miller indices the lattice constant (a) was calculated. The other structural parameters like
X-ray density, unit cell volume, strain etc. were also estimated through XRD data. The values of all the
structural parameters are well matches with the literature values. The cation distribution was estimated
using X-ray intensity ratio calculations, which confirms the inverse spinel structure of prepared cobalt
ferrite. The magnetic properties were investigated using pulsed field hysteresis loop technique. A typical
M-H curve recorded at room temperature reflects the magnetic nature of the cobalt ferrite. The saturation
magnetization (Ms) show enhanced value as compared to bulk cobalt ferrite. However, low value of
coercivity (Hc) was observed for the present sample indicating the superparamagnetic behaviour. The
observed magnetic behaviour was explained on the basis of Neel’s model.
Keywords: Low temperature synthesis, sol-gel auto combustion, cobalt ferrite, cation distribution,
magneticproperties.
Acknowledgements
The authors extend their sincere thanks to UGC-SAP Programme (F.530/16/DRS-I/2016 (SAP-2)
Dt. 16-04-2016) and DST-FIST (Project NO. SR/FST/PSI-210/2016 (C) dtd.16/12/2016) for providing
financial support.
ICMM-2019 215 Book of Abstracts
ICMM:167 | Magnetic and Dielectric properties of Sm and Bi Substituted
Gadolinium Iron Garnet
Aakansha, S.Ravi* Department of Physics, Indian Institute of Technology Guwahati, Guwahati-781039,
Assam, India
*Corresponding author. 8473995096; E-mail:[email protected]/[email protected]
Abstract
Rare-earth iron garnets (RIG)s are technologically important materials for microwave devices,
microwave filters, memory devices etc.In the present work, we have prepared Gd3-xMxFe5O12 (M = Sm
and Bi) using standard solid-state reaction method and studied their influence on magnetic and dielectric
properties. All the samples are found to be in single-phase form with cubic structure as per the Rietveld
analysis based on Ia-3d space group. The lattice constant was found to increase with both Sm and Bi-
substitution. For the first time in GIG series negative magnetization with an applied magnetic field of H
= 200 Oe, is achieved by substituting Sm at Gd site (Gd1Sm2Fe5O12) as shown in Fig 1(a) and it is
explained in terms of enhanced magnetic anisotropy due to Sm-substitution. These materials also exhibit
large increase in the saturation magnetization, Msvalue, i.e. from 0.2 emu/g for x = 0 to 19.5 emu/g at x =
3.0. Bi-substitution also gives rise to increase in Msvalue but in smaller scale, i.e. up to 6.89 emu/g for x
= 1.0.Bi-substitution reduces the dielectric loss and these samples exhibit relaxor ferroelectric transition
(Fig 1(b) for Gd2Bi1Fe5O12 sample) with a typical diffuseness exponent, γ close to 2.0, as per the
analysis based on the modified Curie-Weiss law (inset of Fig 1(b)). The detailed analysis of magnetic
and dielectric data would be discussed.
Keywords: Rare-earth iron garnets; negative magnetization; ferroelectric-relaxor.
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Fig 1: (a) ZFC and FC plots of Gd1Sm2Fe5O12 sample. (b) ε' as a function of T for different applied frequencies
(100 Hz to 100 kHz) for Gd2Bi1Fe5O12 sample. Inset shows the plot of modified Curie-Weiss law in the
temperature range of 558 K to 598 K at f = 200 Hz.
ICMM-2019 216 Book of Abstracts
ICMM:168 | A Comprehensive Device Modelling Of Solid-State Dye
Sensitized Solar Cell by MATLAB
Omhari Dubey1,a, Sarvesh K Gupta2,b and Abhishek K Gupta2,c
1Gorakhpur,273008, India
2Gorakhpur, 273008, India
*Corresponding author. Mobile: (+91) 8765783678, 6388731541;
E-mail::[email protected], [email protected]
Abstract
A Dye-sensitized solar cell (DSSC) has emerged as a live topic in the field of solar energy. In recent ten years
of growth, the energy conversion efficiency of DSSC has improved too much more. Numerical modelling is
an effective strategy in profound comprehension of the working mechanism of a solar cell. This paper
illustrates a numerical model of DSSC by using MATLAB. Several variations are taken into account in
performance curve (Jsc) of DSSC like variations in temperature, coefficient of absorption, thickness of
electrode and so on. The simulation is done based on a mathematical equation of DSSC. By using the internal
variable of DSSC (D, L, , t) we calculate the j-v curve numerically.
Keywords: DSSC, simulation performance, photovoltaic, modelling, MATLAB.
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ICMM-2019 217 Book of Abstracts
ICMM:169 | Solid State Route Preparation, Characterization and Electrical
Properties of NiCuZnFe2O4/Paraformaldehyde Nanocomposites
P. Raju*, S. Rajesham, J. Shankar, J. Anjaiah, G. Neeraja Rani Department of Physics, Geethanjali College of engineering and technology, cheeryala, Hyderabad,
Telangana, India-501301.
*Corresponding author email: [email protected]
Abstract
In this investigation, the structural and electrical properties of nanocomposites of NiCuZn ferrite
(NCZ) and paraformaldehyde (PFD) synthesized by solid state mixing route are reported. Synthesized
nanomaterials have been characterized by FT-IR and TGA techniques. FT-IR results confirm the presence of
NCZ and PFD in the samples. The DC conductivity measurements have been investigated. The dielectric
constant ε’ and dielectric loss ε’’ were found to increase as the PFD content increased to 50% and to decrease
as the PFD content further increased. A dielectric cole-cole diagram can be obtained by plotting the dielectric
loss ε’’ against the dielectric constant ε’. The colecole diagram is generally used for studying the dielectric
polarization characteristics by following the variation of dielectric loss ε’’ with dielectric constant ε’. From
this work, it is possible to deduce interfacial polarization and dipolar polarization from dielectric cole-cole
plots.
Keywords: Nanocomposites; Ferrites; conductivity; complex permittivity; cole-cole plots
ICMM-2019 218 Book of Abstracts
ICMM:170 | Effect of Cr3+ Substitution on Electromagnetic Properties of
Nanocrystalline MgCuMn Ferrites Synthesized by Sol-Gel Method.
T. Ramesh1*, D. Bhavya2, K. Ruchitha Devi2 and S. Senthil Kumar3 1Department of physics, BVRIT Hyderabad College of Engineering for women, India.
2Department of ECE, BVRIT Hyderabad College of Engineering for women, India.
3Ferrite Laboratory, RRCAT, Indore-India
*Corresponding author. Mobile: (+91) 9160400066; E-mail:[email protected]
Abstract
The magnetodielectic properties such as initial permeability, hysterisis loop and dielectric
permittivity properties of the solgel synthesized MgCuMn ferrites with Cr3+
substitution were
investigated. The XRD patterns of the as synthesized powders reveal that the phase purity of the
powders with crystallite sizes are in the range of 15-40nm. FT-IR spectra further giving the support
to phase formation. The powders were densified at 1050°C/4hr by conventional sintering method.
The AFM patterns reveal that the microstructures of the samples are less than 500nm. Complex
permittivity and permeability spectra were undertaken with in the frequency range of 10 kHz-1.8
GHz. From these results, it is found that the initial permeability value decreases with increase of cr
substitution. The complex permeability spectrum indicates that the resonance frequency due to
domain wall oscillation is at a frequency above 20 MHz for all the samples. The hysterisis loop
parameters were calculated and we observe these parameters were decrease with higher Cr3+
substitution.
Keywords: Ferrite, Microwave Hydrothermal, XRD, FT-IR, complex permittivity and permeability.
ICMM-2019 219 Book of Abstracts
ICMM:171 | Theoretical Study on Structural and Optical Properties of PEO &
NH4SCN based Solid Polymer Electrolyte
Vinay Shuklaa, Abhishek Kumar Gupta* b, Sarvesh Kumar Gupta
Madan Mohan Malaviya University of Technology, Gorakhpur (UP), INDIA-273010
*Corresponding author.Abhishek K Gupta Mobile: (+91) 8765783678;
E-mail:a) [email protected]*b) [email protected]
Abstract
Density Functional Theory (DFT) approach is a very useful technique to evaluate the structural and
electronic properties of the materials. Solid nano-composite polymer electrolyte based on poly
(ethylene oxide) (PEO) and Ammonium Thiocyanate (NH4 SCN) salt have been taken for study. The
interaction between PEO and NH4 SCN (electrolyte) in the subsequent step has been studied using
DFT from theoretical and computational calculation. The computational calculation of polymer
electrolyte provides the electronic properties, stability, structural, vibrational properties of PEO,
NH4SCN salt and composition of PEO with NH4 SCN. Moreover, the frontier orbitals (HOMO-
LOMO) configurations and energies were calculated for PEO, NH4SCN and the values are -
4219.3446 eV, -14918.3798 eV respectively. The interaction of PEO with NH4SCN shows the
interaction energy is 0.1775 eV. Mulliken charge distribution and IR are also calculated.
Keywords: DFT, HOMO-LUMO, Ionization Potential, Electron Affinity, Band gap
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ICMM-2019 220 Book of Abstracts
ICMM:205 | Dielectric Relaxation Studies of Aqueous Diethylamine from
10MHz To 50GHz Using A Time Domain Reflectometry
A.R. Deshmukh1 and A.C. Kumbharkhane1*
1School of Physical Sciences, S.R.T.M. University Nanded-431606 India (MS).
*Corresponding author.Mobile: (+91) 9730598110;
E-mail:avadhutdeshmukh07gmail.com
Abstract
Complex dielectric permittivity of Diethylamine-water has been studied by using time
domain reflectometry technique in frequency range 10MHz to 50GHz. The measurements have been
carried out at temperature 25oC, 20
oC, 15
oC and 10
oC at different volume fraction of amine in water.
The dielectric relaxation behaviour of binary mixture amine-water has been fitted with Cole-
Davidson Model having an asymmetric distribution of relaxation time. The dielectric parameter such
as dielectric constant and relaxation time have been reported here. The Kirkwood correlation factor
has been extracted. The excess inverse relaxation time value shows the molecules of the mixtures
rotates slowly. The thermodynamic parameters like enthalpy of activation (ΔH) and entropy of
activation (ΔS) are reported.
Keywords:Complex permittivity, Dielectric constant, Relaxation time, molecular interaction.
Acknowledgements
The instrumental facility from the Department of Science and Technology, New Delhi in School of
Physical Sciences, SRTMU Nanded is gratefully acknowledged (Project no. DST PROJECT-
SB/S2/LOP-032/2013).
ICMM-2019 221 Book of Abstracts
ICMM:206 | Dielectric, Spectral studies of gel grown Mg2+ Doped Copper
Cadmium Oxalate Single Crystal
Rohith P S1, Dr. Jagannatha N1*, Pradeepkumar K V1
1PG Department of Physics, FMKMC College, A Constituent College of Mangalore
University, Madikeri, Kodagu Karnataka, India
*Corresponding author. Mobile: (+91) 9164923392;
E-mail:[email protected]
Abstract
Mg2+
doped Copper Cadmium oxalate (MCuCO) single crystals were grown by a single
diffusion method in silica hydrogel at room temperature. X-ray diffraction (XRD) studies show the
triclinic nature of the crystals. The dielectric constant, ac resistivity and ac conductivity have been
measured as a function of frequency. The dielectric constant of MCuCO crystal decreases as the
frequency of applied field increases; at the end it gives the diminishing value of dielectric constant.
ac conductivity increases with the increase of frequency. Absorbance, transmittance, reflectance,
refractive index, and energy gap of MCuCO crystal were determined by UV-Visible spectroscopy. A
high bandgap corresponds to the dielectric behavior of the crystal.
Keywords: MCuCO; XRD; UV-Visible.
Acknowledgements
The authors are thankful to the scientific officer DST-PURSE laboratory Mangalore University,
Chairman Department of studies in Physics Mangalore University, Director USIC Mangalore
University, Director Innovation Centre MIT Manipal and The Director STIC Cochin for providing
facilities for the characterization and technical support to carry out the work.
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ICMM-2019 222 Book of Abstracts
ICMM:208 | Novel In-situ Synthesis of 1D ZnWO4 Nanorods Decorated 2D g-
C3N4 Nanosheets For Enhanced Visible-Light-Driven Photocatalysis
Ravindranadh Koutavarapu1, Bathula Babu1, Ch. Venkata Reddy1, Kisoo
Yoo1, #, Migyung Cho2, #, Jaesool Shim1, * 1School of Mechanical Engineering, Yeungnam University, Gyeongsan 712-749,
Republic of Korea 2School of Information Engineering, Tongmyong University, Busan 608-711, Republic of
Korea
*Corresponding author. Mobile: (+82)10-2800-7605; E-mail: [email protected] #Co-Corresponding author address: [email protected] (Kisoo Yoo);[email protected] (M. Cho)
Abstract
Recently, the fabrication of visible-light-induced photocatalysts with efficient light
absorption, improved active sites, and good charge separation have gained attention for the
decomposition of hazardous pollutants. In this study, we report a novel carbon-based semiconductor
photocatalyst g-C3N4/ZnWO4 nanocomposites with various contents of ZnWO4 were successfully
constructed through a facile and eco-friendly in-situ hydrothermal synthesis. The structure,
morphology and chemical states of the as-prepared nanocomposites were studied by XRD, TEM and
XPS measurements. Further, the surface of the fabricated 2D g-C3N4 nanosheets was completely
decorated with the 1D ZnWO4 nanorods. The results of photocatalytic investigations signify that the
synthesized heterostructured g-C3N4/ZnWO4 photocatalysts display substantially improved catalytic
performance for the decolorization of Rhodamine B (RhB) upon visible-light treatment. In particular,
g-C3N4/ZnWO4 photocatalysts with 20 mg of ZnWO4 achieved an RhB decolorization of 99% under
visible-light treatment within 80 min. The improved catalytic activity of the heterostructured
nanocomposite can be accredited to the synergistic interfaces among g-C3N4 and ZnWO4.
Furthermore, the heterojunction between g-C3N4 and ZnWO4 enables the direct transfer of
photogenerated electrons from g-C3N4 to ZnWO4, which could hinder the reunion of electron-hole
pairs and improve catalytic performance.
Keywords: ZnWO4; g-C3N4; Heterostructured nanocomposites; Visible-light-driven photocatalysis.
Acknowledgements
This research was supported by the Basic Science Program through the National Research
Foundation of Korea (NRF) funded by the Ministry of Education, Korea government (grant number
NRF-2017R1A4A1015581).
ICMM-2019 223 Book of Abstracts
ICMM:213 | Resistive Switching Characteristics of Pt/TiO2/Al Structure
under Optical Illumination
Kiran D. More1,2, Devidas I. Halge1, Pooja M. Khanzode1, Vijaykiran N.
Narwade1, Sumayya Begum1, Shivaji G. Munde1, Jagdish W. Dadge3,
Abhimanyu S. Rana4 and Kashinath A. Bogle1,* 1Thin Films and Devices Laboratory, School of Physical Sciences, Swami Ramanand
Teerth Marathwada University, Nanded – 431606 INDIA 2Yeshwant Junior College, Umri, Dist. Nanded-431807 INDIA
3Department of Physics, College of Engineering, Pune-411005 INDIA
4Center for Advanced Materials and Devices, School of Engineering & Technology, BML Munjal University,
Gurgaon 122413 INDIA
*Corresponding author. Mobile: (+91) 7350845827; E-mail:[email protected]
Abstract
Modulation in resistance switching characteristics of TiO2 thin film fabricated on aluminium
substrate is investigated under optical illumination. The average thickness of TiO2 thin film is about
200 nm. The current–voltage characteristics of the Pt/TiO2/Al structure show a good rectifying
property with unipolar resistive switching behaviour. This resistive switching behaviour is observed
to be modulated by optical illumination. Photo-carriers generated during optical illumination shifts
the set and reset voltage to lower values. This study is helpful for exploring optical effect in metal
oxides as multifunctional materials and its applications in non-volatile memory devices.
Keywords: Nano-crystalline; TiO2; spin coating; resistive switching
ICMM-2019 224 Book of Abstracts
ICMM:216 | Application of Synthesized Tetragonal Structured Zirconium
Oxide Nanoparticle on Victoria Blue B and Acridine Orange Dye
Santhosh A.M1, Yogendra K1, Mahadevan K.M2, Madhusudhana N1 1Department of P.G studies and Research in Environmental Science, Kuvempu
University, JnanaSahyadri, Shankaraghatta, Shivamogga, Karnataka, India. 2Department of P.G studies and Research in Chemistry, Kadur P.G Center, Kuvempu
University, Kadur, Karnataka, India.
* Corresponding Author: Yogendra K. E-mail: [email protected], Mobile: +91
9448149461
Abstract
Zirconium oxide with the tetragonal phase was prepared from zirconium nitrate and urea by solution
combustion method. Nano-photocatalyst zirconium oxide was investigated by XRD, SEM-EDAX,
TEM, UV absorbance spectroscopy and specific surface area analysis. The distribution size of ZrO2
found to be <17nm and was confirmed by XRD and TEM studies. Further ZrO2 nano-photocatalyst
confirms tetragonal phase by XRD. EDAX reveals the presence of Zr and O. The efficiency of ZrO2
nanoparticles in the photodegradation of victoria blue B and acridine orange dye under sunlight was
investigated.
Keywords: Acridine Orange, Victoria Blue B, Zirconium Oxide, Photodegradation
ICMM-2019 225 Book of Abstracts
ICMM:222 | Enhanced Electrical Properties of Sr(Bi3.9La0.1)(Ti3.975Zr0.025)O15
Ceramic with the Doping of Nd
B. Mamatha1*, K. Ashok2, G. Neeraja Rani1 and A. R. James3 1Geethanjali College of Engineering and Technology, Hyderabad, 501301, India
2Marri Laxman Reddy Institute of Technology and Management, Dundigal,
Quthbullapur, Hyderabad-43, India 3DMRL, Hyderabad, 500058, India
*Corresponding author. Mobile: (+91) 8978196162; E-
mail:[email protected]
Abstract
The polycrystalline material Sr(Bi3.9-xNdxLa0.1)(Ti3.975Zr0.025)O15 with variation of neodymium
content from 2.5 to 10 wt% was prepared by solid state method. XRD analysis indicated the
formation of a single- phase orthorhombic structure. SEM analysis revealed the formation of plate
like structure. It was also observed that with increase in the content of Nd, the values of Curie
temperature (Tc) and dielectric constant (ε) were increased and the tolerance factor (t) decreased. It
was found that the remnant polarization, piezoelectric charge and electromechanical coupling
coefficients were increased up to certain extent of Nd doping and further increase of Nd content
decreased.
Keywords: Bismuth oxide layer structured ferroelectrics; Dielectric; Ferroelectric; and Piezoelectric
properties.
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author.
ICMM-2019 226 Book of Abstracts
ICMM:224 | Growth, Optical and Thermal Properties on Co2+ Doped Copper
Tartrate Single Crystals at Different Environmental Condition.
Pradeepkumar K V1, Jagannatha N1*, Rohith P S1
1PG department of physics, FMKMC College, Madikeri, Kodagu District, Karnataka-
571201, India.
*Corresponding author.Mobile: (+91) 7760648826;
E-mail:[email protected]
Abstract
Cobalt doped Copper Tartrate (CoCT) crystals were grown in silica gel medium using single
diffusion methods at room temperature, passing semiconductor laser and passing various UV visible
radiation. The optimum conditions were obtained by varying parameters such as gel concentration,
pH of gel, gel setting time, concentration of reactance. The presence of cobalt, copper, carbon and
oxygen is confirmed by the Energy dispersive X-ray spectroscopy (EDX).The crystals obtained, are
regular or elongated shaped depending on the growth and environmental conditions. The grown
crystals are characterized by FTIR and PXRD.TGA/DTA studies explain the thermal behaviour of
the grown CoCT crystal. UV-Vis-NIR transmission spectroscopic analysis measured the energy gap
and, to study the optical transparency of the grown crystals.
Keywords: SEM; EDX; PXRD; TGA/DTA; UV-Vis-NIR.
Acknowledgements
The authors are thankful to the scientific officer DST-PURSE laboratory Mangalore University,
Chairman Department of studies in Physics Mangalore University, Director USIC Mangalore
University for providing facilities for the characterization and technical support to carry out the
work.
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the presenting
author.
ICMM-2019 227 Book of Abstracts
ICMM:226 | Dielectric Relaxation Studies on Molecular Interaction in Binary
Mixtures of Glycerol with n-Methyl-2-Pyrrolidone
V. Manjulaa, b, T. Vamshi Prasadc, K. Balakrishnaa, K.C. James Rajud, T
Vishwama* aDepartment of Physics and Chemistry, GITAM (Deemed to be University) -Hyderabad,
Rudraram, Patancheru (M), TS- 502329. bDepartment of Physics, Geethanjali College of Engineering and Technology,
Hyderabad, Telangana 501301. cDepartment of Physics, Jawaharlal Nehru Technological University- Hyderabad,
Hyderabad -500 085. dSchool of Physics, University of Hyderabad, Hyderabad, Telangana 500046, India.
*Corresponding author. Mobile: (+91) (0)8455 220555/56/57; E-mail:[email protected]
Abstract
In the present manuscript, we are reporting the complex dielectric permittivity of glycerol / n-
methyl-2-pyrrolidone (NMP) binary mixtures of different concentrations in the in the microwave
frequency range 20 MHz-20 GHz at different temperatures. The dielectric relaxation times of the
binary mixtures are analysed by using the Havriliak-Negami equation. The ordering nature of the
molecular dipoles is discussed by evaluating the Kirkwood correlation factor(geff
) and stability of the
system by thermodynamic parameters. The experimental dipole moments of the pure and equimolar
binary system are determined by using Higasi’s method and compared with the theoretical dipole
moment values obtained from DFT/B3LYP methods. Mean molecular polarizability (αM) of the
system is calculated from the Lippincott δ function potential model and compared with the Lefevre
method. The molecular interaction between glycerol / n-methyl-2-pyrrolidone (NMP) binary
mixtures are discussed in terms of hydrogen bonding and dielectric parameters.
Keywords: Dielectric permittivity; relaxation; DFT; hydrogen bonding; mean molecular
polarizability.
Acknowledgements
The authors gratefully acknowledge University Grants Commission Networking Resource Centre,
School of physics, University of Hyderabad, for giving the opportunity to use the Research lab
facilities to carry out the above work.
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the presenting
author.
ICMM-2019 228 Book of Abstracts
ICMM:230 | Thermal Properties of Pr2O3 dopedlead boro-tellurite glasses
Sangeeta B. Kolavekar1 and N. H. Ayachit2* 1Department of physics, BVB college of Engineering and Technology, K. L. E. Technological
University, Vidyanagar, Hubballi-580031. Karnataka, India. 2Center of Material Science, K. L. E. Technological University, Vidyanagar, Hubballi-580031.
Karnataka, India.
*Corresponding author. Mobile: (+91) 9481727472; E-mail:[email protected]
Abstract
This paper presents studies on the thermal properties of the rare earth ion Pr3+
doped lead
boro-tellurite (75PbO - (24-x) B2O3 - xTeO2 - 1Pr2O3) glass systems which are highly suitable for
fiber materials for non-linear applications like, laser, sensor, amplifiers etc. X-Ray Diffraction
(XRD) analysis of the samples depicts the amorphous nature of glass. Glass transition (Tg)
temperature and the crystallization temperatures (Tc) are determined using differential scanning
calorimeter (DSC) technique. Results on XRD and DSC show that the investigated glasses are stable
in nature. The stability of the glass is found to increase with addition of TeO2 mole%.
Keywords: Pr3+
ion; glass transition; DSC.
Acknowledgments
Authors (S.B.K and N.H.A) thank K.L.E.Technological University for providing funding assistance
through TEQIP grants.
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ICMM-2019 229 Book of Abstracts
ICMM:234 | The effect of cation-size variance on the relaxor nature and
insulating character of the lead free Rb substituted Na0.5Bi0.5TiO3
Krishnarjun Banerjee, Saket Asthana
Advanced Functional Materials Laboratory, Department of Physics, Indian Institute
of Technology Hyderabad, Kandi,Telangana-502285, India
*Corresponding author. Ph: (+91) 040 2301 6067; E-mail:[email protected]
Abstract
Relaxation property is always matter of interest for the frequencydependent study of the ferroelectric
materials. The Nyquist plot of the impedance data provides the information about the relaxation phenomena.
Often, in solids instead of a single relaxation time a distribution of the relaxation times is found, which arises
from the different mechanisms. Usually, the relaxation times is varied by substitution and its influence is
studied on the basis of the compositional effect, but the impact of the size of the dopant is rarely
analysed.1Fundamentally, the substituted cations affect the crystal structure of the host material, which
modulates the relaxation phenomenon. In the current study, the Rb substituted lead free Na0.5Bi0.5TiO3
(perovskite structure, ABO3 type) is chosen as its A-site is compositionally disorder due to the presence of the
differentcations with dissimilar radii. The samples are prepared through the solid state sintering method.2 The
mismatch of the A-site cation radii is quantified through the size variance (2 ). The imaginary part of the
complex impedance ( Z ) vs itsreal part ( Z ) are plotted for all samples to verify the response of the grain and
grain boundariesand effect of the2 on the relaxor nature. At the higher temperature (500°C) single semi-
circular arcs are formed by the materials for lowest and highest 2 values. Interestingly, two semi-circular
arcs are observed for the material for highest 2 value at lower temperature (below 300°C). The second circle
is associated with the different relaxation time of the dipolar entity, which may be generated due to the
substitution of the Rb1+
. This observation proves that cation size mismatch creates the variation in the
relaxation times at the lower temperatures. The cation size mismatch also modulates the contribution of the
grain boundary to the impedance property. The real part of impedance of the 4 mol %, substituted
Na0.5Bi0.5TiO3 is enhanced by 4 times than pure Na0.5Bi0.5TiO3, which fortifies its performance as a capacitor
and energy storage device.
Keywords: Relaxation time; size mismatch; lead free ferroelectric.
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the presenting
author.
ICMM-2019 230 Book of Abstracts
ICMM:235 | Optical Properties and Structural Studies of Eu3+ ions doped
Lead-Borate-Tellurite Glasses
Raju B. Katti1, V.K Pattar2, K.R Sardar Pasha3, N. Hanumantha Raju4, V.C Veeranna
Gowda4* 1Department of physics, K.L.E Society’s, S. Nijalingappa College, Rajajinagar, Bangalore-560010, India
2 Department of physics, B.G.S.R &D Centre, SJC Institute, Chikkkaballapur-562101, India
3K. R Sardar pasha, Research Scholar, Rayalaseema University, Kurnool, Andra Pradesh-518007, India
4 Department of physics, N. Hanumantha Raju, Maharani’s Science College for Women, Bangalore-560001,
India 4 Department of physics, V.C Veeranna Gowda, Maharani’s Science College for Women, Bangalore-560001,
India
*Corresponding author. Mobile: (+91) 9741118016; E-mail: [email protected]
Abstract
In the present study europium doped lead-boro-tellurite glasses were prepared by melt
quenching method. The oxygen packing densities have been calculated and were used to elucidate
the variation in the density and glass transition temperature. Borate glasses exhibit BO3 and BO4
structural entities with oxygen atoms. These two structural units of the boron cations gets modified in
the process of formation of various borate species in the form of diborate, triborate, metaborate,
tetraborates[1]. These different structural entities of the boron network bring down the local crystal
field around Eu3+
ions and exhibits structural dependent optical properties finds various photonic
applications [2-4].
The optical properties have been examined using UV-visible absorption spectra. The optical
band gap energy found to decrease with the increase of Eu3+
ions. The addition of lead oxide to
borate glass provides additional non-bonded oxygen coordination to Pb2-
ions. The addition of TeO2
significantly reduce the higher phonon energy of the borate glasses. The local symmetry offered by
the boro-tellurite glass network reveals the splitting of the 5D0
7F1 transition into three components.
These telluroborite glasses containing Pb2+
ions possess unusual optical properties like higher
refractive index and low phonon energy which reduces the multi-phonon relaxation, de-excitation
between rare-earth ions energy levels and to enhance the quantum efficiency of luminescent
transition of the trivalent rare earth ions [5]. The non-linear variation in the optical properties was
considered to depend on the electronic polarizability of oxide ions and is owing to the creation of
non-bridging oxygen in the lead borate glass network.
Keywords: Optical properties; Rare earth oxides; Borate glasses; Electronic polarizability.
ICMM-2019 231 Book of Abstracts
ICMM:236 | Well-dispersed Amorphous carbon Nanotube-Alumina
Nanocomposite in Engine Oil for Nanofluid with Improved Thermal
Conductivity
Sudipta Kumar Sarkar1, Arunava Jha2, Kalyan Kumar Chattopadhyay1,2* 1School of Materials Science and Nanotechnology, Jadavpur University, Kolkata, 700032,
India 2Department of Physics, Jadavpur University, Kolkata, 700032, India
*Corresponding author. Tel: 033-24572876; E-mail: [email protected]
Abstract
Enhancing the thermal conductivity of a heat transfer fluid with the incorporation of
nanomaterial is a widelyknown technique to achieve an efficient cooling system where such fluid,
incorporated with nanomaterial is popularlyknown as nanofluid. However, the complexities in
synthesizing the desired nanomaterials and difficulties inincorporating them to the heat transfer fluid
due to their poor dispersion ability opens up huge scope for carrying outfurther research in this field.
Therefore, in the current work, we report, a simply synthesized amorphous carbonnanotubes (ACNT)
and alumina (Al2O3) nanoparticle based nanocomposite that can easily disperse in engine oil (a
classof heat transfer fluid) and can significantly improve its thermal conductivity. In our work,
ACNTs with the length of ⁓ 4μm and diameter of ⁓ 200 nm was synthesized by simple solid state
reaction method whereas alumina nanoparticles withthe dimension of ⁓ 50 nm were separately
synthesized by sol-gel method. Then the nanocomposite was prepared bysimply mixing them in
liquid medium, followed by drying. Structural characterizations were carried out through x-
raydiffraction, field emission scanning electron microscopic and high resolution transmission
electron microscopic studies.The nanofluid was formulated by dispersing the nanocomposite in the
base fluid (engine oil) with variation in loadingand subsequently thermal conductivity was measured
by Transient Hot Wire (THW) method. The maximumimprovement in the thermal conductivity of ⁓
20% was obtained with 0.04 vol. % of nanocomposite loading. So, all inall, it can be stated that
ACNT and alumina naoparticle based nanocomposite was successfully prepared and itsapplication in
enhancing thermal conductivity of engine oil has successfully been shown.
Keywords: Amorphous carbon nanotube; alumina nanoparticle; nanofluid; thermal conductivity.
Acknowledgements
Department of Science and Technology, Govt. of India.
University with Potential for Excellence (UPEII), Govt. of India.
University Grants Commission (UGC), Govt. of India.
ICMM-2019 232 Book of Abstracts
ICMM:238 | Synthesis of garnet structured Ce doped Li7La3Zr2O12 electrolyte
by solid state reaction method
Anubha sodhiya*, Arun kumar singh, Ranveer kumar
Dr.Harisingh Gour Vishwavidyalaya, Sagar, Madhya Pradesh,470003, India
*Corresponding author. Mobile: (+91) 7477253095; E-mail:
Abstract
Cubic Li7La3Zr2O12 garnet electrolyte is the most studied solid electrolyte material due to its high
ionic conductivity (10-4
S/cm) and large electrochemical stability window. It is difficult to stabilize
the cubic phase of Li7La3Zr2O12 at room temperature without any doping element. Doping of
different supervalent cations at the lithium and zirconium sites to stabilize the cubic phase of
Li7La3Zr2O12 electrolyte has been studied by different research groups. Here Ce substituted
Li7La3Zr2O12has been prepared by solid state reaction method in different compositions. The
structural and electrochemical properties of as prepared electrolyte have been studied by powder
XRD and AC impedance spectroscopy. The conductivity values obtained for Ce doped
Li7La3Zr2O12are considerably low as compared to pure cubic Li7La3Zr2O12 electrolyte which may be
due to the lower ionic radii of cerium as compared to lanthanum.
Keywords: Lithium ion batteries; solid state electrolytes; cations, ionic conductivity.
ICMM-2019 233 Book of Abstracts
ICMM:239 |Microwave Assisted Green Synthesis of Silver Nanoparticles
using Punica Granatum Peel Extract: Evaluation of their Catalytic and
Antibacterial activity
Ruqya Banu1, 2, G.Bhagavanth Reddy2, K Girija Mangatayaru2*, 1Department of Chemistry, GDC Malkajgiri, Medchal, Telangana-500047,
India. 2Department of Chemistry, Palamuru University, Mahabubnagar, Telangana-509001, India.
*Corresponding author. Mobile No: (+91) 9705786186, Email:[email protected]
Abstract
The synthesis of silver nanoparticles (AgNPs) has drawn attention over the past few years owing to
their physico-chemical and optical properties. In the present investigation synthesis of AgNPs using
Punicagranatum peel extract was mediated under microwave irradiation. The duration of microwave
irradiation and concentration of AgNO3 and Punicagranatum peel extract were optimized for the
better yield of AgNPs.Under all optimized conditions, the zeta potential, average diameter and
polydispersity index of AgNPs synthesized were -30.5 mV, 10±2 nm and 0.224 respectively.
Phytochemicals present in the extract help to reduce silver salt to metallic silver and act as a
stabilizer in the synthesis of AgNPs. The synthesized AgNPs are characterized by routine analytical
techniques like UV-visible, FTIR, XRD, DLS and TEM. The synthesized AgNPs not only showed
good catalytic activity in the reductions of p-nitrophenol, Methylene Blue and Congo red, but also
showed antibacterial activity against gram positive and gram negative bacteria.
Keywords: Microwave, Punicagranatum, Silver nanoparticles, Antibacterial properties, Catalytic
activity.
Acknowledgements
All the authors thanks to Department of Chemistry, Palamuru University and Department of
Chemistry, Osmania University for providing infrastructure and other necessary facilities. The
authors would like to thank STIC, Cochin, India for extending their TEM facility.
ICMM-2019 234 Book of Abstracts
ICMM:241 | Variable Photoluminescence of Nano Zirconia Quantum dots by
Hydrothermal Synthesis
G. Deepthi Reddy1, M. Noorjahan1* and A. Ratnamala2 1*
Department of Chemistry, Palamuru University,Mahbubnagar-509001,Telangana,India 2 Deprtment of Chemistry,Githam University, Bengaluru Campus-560065, Karnataka,India
*Corresponding author. Mobile: (+91) 9494179106; E-mail:[email protected]
Abstract
In the last few decades, nano Zirconia has attracted great attention because of its versatile
applications in the diversified areas like catalyst support, as insulator in transistors for nanoelectric
devices, solid oxide fuel cells, optoelectronic, piezoelectric and nanocomposite devices .In the
present study ,We report hydrothermal synthesis of nanozirconia quantum dots exhibiting variable
photo luminescence at different excitation wavelengths. Nano Zirconia quantum dots were prepared
by single step hydrothermal synthesis followed by reduction of Zirconyl Oxy chloride
(ZrOCl2.8H2O) solution with wet leaf extract of Syzigium cumini (S.cumini) in absence of surfactant
and a base, which opens a new avenue for designing novel luminescent nano Zirconia quantum dots.
The ultraviolet-visible spectrum of the aqueous medium containing zirconia nanoparticles showed an
absorption peak at around 262 nm. Powder X-ray diffraction showed that the particles are crystalline
in nature, with an average size of ~2.06nm comprising tetragonal ZrO2 structure. Photoluminescence
Spectra has shown a sharp visible emission peaks at 730 nm and 603 nm, broad emission peaks at
450 nm ,500 nm,520 nm and 580 nm at varying excitation wavelengths ranging from 300-400nm
.The most needed outcome of this work will be the development of pure nano quantum dots using
the plant extract which contains different flourophores, greatly used in bio-medical, opto electronic
and electro chemical sensing applications.
Keywords: Hydrothermal; Nano Zirconia; Quantum dots; Photoluminescence.
Acknowledgements DST, INSPIRE AORC Fellowship is greatly acknowledged for providing financial assistance.
ICMM-2019 235 Book of Abstracts
ICMM:242 | Impact of Phytosynthetic Nanomagnetite Particles on Elusine
Coracana (Finger millet) Hydroponic Seed Germination
M. Hasheena1, A. Ratnamala*1, G. Deepthi Reddy2, M. Noorjahan2
1*
Department of H &S, Gitam deemed to be University, Bangalore, Karnataka 2Department of Chemistry, Palamuru University, Mahabubnagar, Telangana
*Corresponding author. Mobile: (+91) 8074156210; E-mail:[email protected]
Abstract
To meet the growing demand of food in the developing nation like India, which is the second
largest populated country in the world and need much focus on the increase in crop production to
feed such a huge population? To meet this demand of food, researchers need to focus on the
development of eco-friendly agricultural production technologies. Nanoparticulate material delivery
to plant technology also holds the promise of controlled release of agrochemicals and site targeted
delivery of various micronutrients needed for improved productivity, plant disease resistance,
efficient nutrient utilization and enhanced plant growth. Nanoparticles mediated plant growth has the
potential for improved agricultural productivity.
In this study, microwave assisted phytosynthetic magneto sensitive magnetite nanoparticles had
been synthesized from aqueous Hibisus Rosasinensis leaf extracts, which acted as a reductant
and stabilizer simultaneously. The phytosynthetic magnetite nanoparticles acts as a nanofertilizer
which enhances the seed germination (hydroponics) in Eleusine coracana (Finger Millet) commonly
called as Ragi seeds. The nanomagnetite particles are characterized by XRD, SEM, FTIR and TEM.
The Nano Magnetite Fe3O4 visualizes enormous beneficial aspects in enhancing growth performance
(seed germination) in terms of root length and shoot length of Eleusine coracana (Finger Millet)
seeds.
Fig.1. Eleusine coracana seed germination (a) on day-2 and (b) day-6
Keywords: Magneto-Sensitive Magnetite, Hibiscus rosasinenis, Eleusine coracana, Seed
germination, Hydroponics
Acknowledgements The author greatly acknowledged the Gitam Deemed to be University, Bangalore for the support.
ICMM-2019 236 Book of Abstracts
ICMM:244 | Thermoacoustic Investigations on Nanofluids
Swapnali P. Rajmane1, Pratiksha D. Donolikar1, V.A. Sawant2, S. B.
Sadale2* 1School of Nanoscience and Technology, Shivaji University, Kolhapur 416004 India
2*Department of Technology, Shivaji University, Kolhapur 416004 India
*Corresponding author. Mobile: (+91) 9403450170;
E-mail:[email protected]
Abstract
Nanofluids have a great attention because it has an enormous potential to improve the
efficiency for heat transfer systems owing to its high thermal conductivity. For any nanofluid to be
usable in heat transfer applications, the main concern isits thermal conductivity. In this work, iron
oxide nanoparticles were synthesized using cost-effective chemical method. The nanostructured iron
oxide were characterized by various characterization techniques viz., X-ray diffraction (XRD),
Scanning Electron Microscope (SEM) etc. The iron oxide based nanofluids of different
concentrations in the range 0.02%, to 0.2% were prepared.The size of nanoparticles used was 20nm.
A comprehensive correlation of ultrasonic velocity and thermal conductivity is proposed based on
theory and experimental observations. The effect of concentration on ultrasonic velocity,
compressibility and thermal conductivity thereby was studied. Such approach can be useful in
studying the relationship between various prepared nanofluids such as ultrasonic velocity, thermal
conductivity, electrical conductivity, compressibility etc.
Keywords: Iron oxide nanoparticles, nanofluids, ultrasonic interferometer, thermal conductivity,
heat exchangers.
Acknowledgements
The authors are very thankful to department of technology, Shivaji University Kolhapur for
providing research facilities.
ICMM-2019 237 Book of Abstracts
ICMM:249 | Synthesis and Magnetic Properties of Nanostructured Ni1-
xZnxFe2O4(x = 0.4, 0.5 and 0.6)
Bhumireddi Sattibabu1*, T. Durga Rao1, A. K. Bhatnagar2,
S.Rayaprol3, V.Siruguri3 and D. Das2
1Department of Physics, Institute of Science, GITAM (Deemed to be
University), Visakhapatnam, Andhra Pradesh-530045, India 2
School of physics, University of Hyderabad, Hyderabad 500046, India 3UGC-DAE Consortium for Scientific Research, Mumbai Centre, BARC
Campus, Mumbai-400085, India
*Corresponding author. Mobile: (+91) 9966101923; E-mail:[email protected]
Abstract
Nanostructured Ni1-xZnxFe2O4(x = 0.4, 0.5 and 0.6) samples are prepared by auto-combustion
method. The compounds are formed in the cubic spinel phase without any impurity as seen from the
XRD data. Increase in lattice parameters and volume of unit cell with the Zn content could be
understood because of substitution of larger ionic sizes of Zn2+
(0.74 Å) and Ni2+
(0.69 Å) in place of
Fe3+
(0.60 Å) The crystallite size increased with the Zn content. FESEM analysis reveals a non-
uniform size distribution in grain sizes with the Zn content. All the prepared compounds maintained
(Ni, Zn) and Fe stoichiometry in the ratio close to 1:2 as observed using EDAX measurements.
Magnetic properties are investigated using a VSM magnetometer. The magnetic parameters, such as
saturation magnetization (Ms), coercive field (Hc), remnant magnetization (Mr) and Bohr
magneton (μB), are determined and are compared with the reported values. The saturation
magnetization decreases gradually with increase in the Zn concentration. Anisotropic constants (K)
of Ni1-xZnxFe2O4, estimated from the magnetization curve measured at room temperature (~300 K)
are 1.5 104
J/m3for x = 0.6, 1.9 10
4 J/m
3for x= 0.5 and 1.6 10
4 J/m
3for ~x=0.4 which are in good
agreement with the previously reported values.
Keywords: Spinel structure, magnetic properties, anisotropic constant
Acknowledgements
This work has been supported by UGC-DAE Consortium for Scientific Research, Mumbai Centre,
India in the form of a collaborative research scheme (CRS) through project number CRS-M-289.
AKB thanks support from INSA under its Senior Scientist scheme.
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presenting author.
ICMM-2019 238 Book of Abstracts
ICMM:250 | Study of Microstructure and Thermal Properties of PbTiO3
based Glass Ceramics
J. Shankar1*, A. Shiva Kumar1, J. Anjaiah1, P.Raju1, G. Neeraja Rani1 and V.K. Deshpande2
1Geethanjali College of Engineering and Technology, Hyderabad-501301, India
2Visveswaraya National Institute of Technology, Nagpur, 440010, India
*Corresponding author. Mobile: (+91) 9133881530; E-mail:[email protected]
Abstract
Glass samples with composition (35- X) B2O3 - (40 +X) PbO - 25 TiO2 (where X= 0, 2.5,5,
7.5 and 10 mol %) were prepared using conventional quenching technique. These glass samples were
converted to glass ceramics by following two stage heat treatment schedule. The density (ρ) values of
glass ceramic samples are higher than those of corresponding glass samples. It was observed that
there was good correlation between the density and Coefficient of Thermal Expansion (CTE) results
of the glass–ceramics. The XRD results in the glass ceramics revealed the formation of tetragonal
lead titanate (PbTiO3) as a major crystalline phase and lead borate (PbB2O4) as minor crystalline
phase. The microstructure of glass ceramic samples contains nano crystallites of lead titanate
embedded in a borate glass matrix.
Keywords: Glass; Glass Ceramics; Thermal Expansion, SEM.
ICMM-2019 239 Book of Abstracts
ICMM:252 | Radionuclide Sorption onto Nanoiron Oxy Hydroxide: Synthesis
and Application to Natural Waters
Dasari Vasundara, Susarla Siva kumar, Thaticharla Kaleswararao
and Duvvuri Suryakala*
Department of Chemistry, GITAM Institute of Science, GITAM University,
Visakhapatnam, India,
*Corresponding author. Mobile: +(91) 9490131914; Mail:
Abstract
The increased demand for the lanthanides in commercial products result in increased
production of lanthanide containing ores, which increases public exposure to the lanthanides, both
from various commercial products and from production wastes/effluents. This work investigates the
efficacy of γ-Fe2O3 for rapid removal of some of the most toxic and radioactive long-lived human-
made radionuclides from natural water. Nano metal oxides have been successfully prepared by
precipitation synthesis followed by thermal decomposition of transition metal oxides, These are
further characterized by different physico-chemical techniques like XRD, UV-Vis-DRS, TEM, FTIR
and BET analysis. Adsorption capacities of target REEs such as La(III), Nd(III), Gd(III), and Y(III)
are observed through ICPAES technique. The parameters influencing the adsorption capacity of the
target species including contact time, pH, initial concentration, and temperature were optimized. The
adsorption kinetics and thermodynamics were studied. These results proved that nano metal oxides
(γ-Fe2O3) have been successfully prepared by precipitation synthesis followed by thermal
decomposition of transition metal oxides, and followed a simple methodology to mollify the severity
of nuclear waste contamination, thereby leading to effective measures for environmental
remediation.
Keywords: Nano iron oxy hydroxide, characterization, adsorption, rare earth elements.
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ICMM-2019 240 Book of Abstracts
ICMM:255 | Research Processes of Oil and Paper Insulation of High-Voltage
Equipment during Operation
G. Sree Lakshmi 1, Rubanenko Oleksandr2, Rubanenko Olena1, Hunko
Iryna2
1Regional Innovational Center at the Faculty of Electrical Engineering University of
West Bohemia, Plzen, 306 14, Czech Republic 2 Department of Electric Stations and Systems of Vinnytsia National Technical University, 21000,
Vinnytsia, Ukraine
Corresponding author. Mobile: (+91) 8897893714; E-mail: [email protected]
Abstract
In this work was analysed the influence of thickness and density of paper, grade of mineral oil
on short-term electrical strength. The characteristics of the insulating papers of the permeable
composition largely determine the electrical strength of the paper-oil insulation.Since paper-oil
insulation consists of a series of successive layers of paper and oil, it is advisable to present such
insulation by the equivalent scheme shown in fig. 1, in which the thickness of the paper-oil dielectric
is divided into two layers: paper (fiber) and mineral oil, connected in series.
a) b)
Fig.1 – Equivalent paper-oil insulation scheme: a - to calculate the voltage on the oil layer; b - to
calculate the dielectric loss in insulation.
The increase in the dielectric constant of the paper is accompanied by an increase in the tension in the oil
layers of paper and oil insulation, which promotes the development of discharges in these layers and facilitates
the breakdown of the insulation. As a result, the effect of paper density has a different effect on the short-term
and long-term strength of the insulation. In determining the short-term strength, the influence of the first factor
prevails, which contributes to its increase with increasing paper density. For example, by increasing the
density of paper from 0.7 to 1.3 g/cm3, the electrical strength of sheet insulation (flat samples) increases by
60%.However, in determining the long-lasting strength, partial breakdowns in the oil layers lead to
considerable destruction of the insulation. In this case, as the paper density increases, the breakdown strength
is reduced and the insulation life is shortened.
Keywords: Paper-oil insulation, dielectric constant, breakdown voltage.
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ICMM-2019 241 Book of Abstracts
ICMM:259 | An Improved Active Frequency Drift Islanding Detection Using
Fuzzy Logic Technique Dr. A. Jaya Laxmi*, R. Pradeep, Ch. Anjamma, Etneni Rama Krishna
JNTUHCEH, HYDERABAD, 500085, INDIA
*Corresponding author. Mobile: (+91) 94400569949; E-mail:[email protected]
Abstract
Renewable energy is a rapidly growing sector that is not the source of pollution produced by
nuclear and fossil generation systems. Renewable energy consumption for Distributed Generation
(DG) is significant worldwide because it increases profitability, since it is integrated into consumer
systems to ensure power supply at points of consumption even when DG system is disconnected
from the main system.
In situations like natural disasters and fault conditions it becomes difficult to supply
the power from conventional energy resources to the loads that are connected to the
secondary distribution network. Often it requires that the Distribution Energy Resources
(DERs) are connected to the secondary distribution network. In situations like fault on grid side
or to feed power from distributed resources to secondary network loads, the secondary network
should be isolated from the grid. In order to switch the loads from grid side to DERs and to
prioritize the loads, it requires control strategies. In general, the control uses the under
frequency, negative sequence currents and impedances of the fault line as parameters.
The algorithm is proposed for Low Voltage (LV) DC distribution system is difficult to
obtain control by frequency, negative sequence currents as parameters.
This paper proposes a technique by using voltage, current and active power of the
network as parameters for islanding loads in LVDC distribution system. An algorithm is
proposed using Adaptive Neural Fuzzy Inference Systems (ANFIS) to generate boundary
conditions for the outputs that are produced from the control unit for intentional islanding of
loads in LVDC distribution system.
Keywords: DERs, Solar Photo Voltaic (PV) Module, LVDC, Intentional Islanding, ANFIS
Controller.
Acknowledgements:
I thank TEQIP-II, JNTUHCEH for providing necessary infrastructure.
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ICMM-2019 242 Book of Abstracts
ICMM:262 | CNT-TiO2 Coated Silicon PV Cell for improved conversion
efficiency
Mohammed Fayaz1, K.V. Sharma2, P.H.V. Shesha Talpa Sai3 M Tech , Centre for Energy studies, JNTUHCEH1
Professor, Centre for Energy studies, JNTUHCEH2
Professor, Department of Mechanical Engineering, MRCET Hyderabad3
Abstract
Conventional multi crystalline silicon wafers used in photovoltaic applications offer low
electrical conversion efficiencies due to various loss mechanisms. The challenges, such as photon
absorption, charge separation and carrier collection, in conversion of photon energy to electrical
energy using PV cells, can be influenced by coating the active surface of the cell with nano materials
as anti-reflection coating. Carbon Nano Tubes (CNTs)in combination with TiO2are having superior
electrical conductive properties that can be used in many other applications apart from photo voltaic
application. TiO2 is prepared using a two step sol-gel method using titanium isopropoxide as
precursor. Single walled CNTs is grown using chemical route synthesis.CNTs and titanium dioxide
nano particles prepared using this simple and scalable method offers good photo-electrochemical
properties. Both CNTs and TiO2 are spray coated on bare multi-crystalline silicon solar cell. The
extensive surface area of CNTs due to their vertical alignment and excellent anti reflective properties
of TiO2 are useful in tuning the band gap energy of the AR coating with reduced recombination rate
and enhanced photocurrent. Characteristic studies on these CNTs and TiO2are to be conducted for
enhanced conversion efficiencies of multi crystalline silicon solar cells compared to bare and SiN
coated mc-Si cells.
Keywords: Multi-crystalline solar cells, CNTs, TiO2, AR coatings.
ICMM-2019 243 Book of Abstracts
ICMM:263 | A Study Of Dielectric Relaxation Properties of ZnFe2-xBixO4
nano Ferrite Particles Synthesized by Sol-gel Combustion Method N Suresh Kumar
Department of Physics, VNR Vignana Jyothi Institute of Engineering and Technologyy,
Hyderabad, Telangana. 500090, India.
*Corresponding author. Mobile: (+91) 9573979051; E-mail: “[email protected]”
Abstract
A series of bismuth doped zinc nano ferrite particles with the particular formula ZnFe2-xBixO4
(x = 0.00, 0.05, 0.10, 0.15, 0.20 & 0.25) were prepared by sol-gel combustion method; and these
compositions were sintered at 600oC for 5 hrs. With the effect of bismuth doping, the structural
properties of all prepared samples were characterized by X-ray diffraction (XRD). The X-ray
diffraction spectra analyses confirm single phase cubic (FCC) spinal structure. The average
crystallite size (D) of the samples found to be in the range 17-20 nm. The dielectric properties viz.,
dielectric constant (ε'), dielectric loss tangent (tan δ) and AC conductivity (σAC) were measured at
room temperature in the range 20Hz to 2MHz, which confirm the normal ferrite behavior. In the
present research work, we are intended to extend dielectric relaxation studies of these samples with
the help of Cole-Cole plots. The Cole-Cole plots of the bismuth doped zinc ferrites were drawn as a
function of ε' and ε'' (where, ε''=ε' tan δ) and hence we have determined the spreading factor (β) for
all the samples. It was observed that β decreases with the increase of the concentration of B2O3. It is
noticed that the dielectric parameters ε', tan δ and σAC have exhibited the similar trend. These samples
may find suitable applications in electrolytic elements in battery technology.
Keywords: Bi-Zn nanoferrites; sol-gel combustion method, AC conductivity and dielectric constant,
cole-cole plot, and spreading factor.
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ICMM-2019 244 Book of Abstracts
ICMM:268 | Facile synthesis of MnWO4 nanostructure for supercapacitor
application
Pratiksha D. Donolikar1, Sagar D. Jadhav1, Deepak P. Dubal2, Deepak R.
Patil3*, Shivaji B. Sadale4* 1School of Nanoscience and Technology, Shivaji University, Kolhapur (M.S), India
416004 2School of Chemistry, Physics and Mechanical Engineering, Queensland University of
Technology, Brisbane, Australia 3*
Centre for Materials for Electronics Technology, Ministry of Electronics and
Information Technology(MeitY), Govt. of India. Pune, 411008, India 4Department of Technology, Shivaji University, Kolhapur (M.S), India 416004
*Corresponding Author: Mobile: (+91) 8552879043; E-mail: [email protected]
Abstract
Supercapacitors are new energy storage devices with unique features such as high power
density, high capacitance and a long life than batteries. Finding supercapacitive materials with high
energy density with good rate capability is still challenging. Here, we have synthesized MnWO4
nanostructure by facile hydrothermal method and studied their supercapacitive properties. The
structural and morphological analysis and measurements were done using x-ray diffraction, scanning
electron microscopy, energy dispersive x-ray diffraction. Asymmetric supercapacitor was fabricated
with graphite as anode and MnWO4 as cathode on carbon cloth substrate and studied its
electrochemical properties using 1 M Na2SO4 as the electrolyte. The effect of potassium iodide (KI)
addition to electrolyte on electrochemical properties was studied. Maximum specific capacitance of
450 F/gm was achieved with capacitive retention 85% for 5000 cycles for three electrode system.
Energy density without KI was 51 Wh/kg which is increased by addition of KI to 99 Wh/kg.
Keywords: MnWO4 nanostructures; Supercapacitor; KI – Potassium iodide.
Acknowledgements
The authors are thankful to School of Nanoscience and Technology, Shivaji University, Kolhapur for
awarding me with departmental fellowship (DRF).
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ICMM-2019 245 Book of Abstracts
ICMM:270 | Phase Transitions in Dense Thermo-responsive Microgel
Suspensions: A Monty Carlo Study
Sivaram Vintha, Ranajay Datta, B.V.R. Tata*
School of Physics, University of Hyderabad, Hyderabad-500046, India
*Corresponding author. Mobile: (+91) 9444463933; E-mail:[email protected]
Abstract
Aqueous suspensions of monodisperse colloidal particles exhibit structural ordering under
suitable conditions. Deionised suspensions of charged polystyrene particles exhibit long-range order
for volume fraction ϕ> 0.001, whereas suspensions of hard-spheres undergo crystallization at ϕ >
0.48. In these dispersions the particle size is fixed and the temperature(T) is not a controllable
parameter to investigate the phase transitions. Whereas aqueous suspensions of thermo-responsive
poly(N-isopropylacrylamide)(PNIPAM) particles exhibit rich phase behaviour upon varying T as
well as osmotic pressure due to the variation in particle size as well as interparticle interactions.
Recently Bergeman et al have proposed Multi-Hertzian (MH) pair potential. MH pair-potential is
expected to represent the interparticle interaction between PNIPAM microgel spheres upto their
volume phase transition (VPT) temperature (VPT ~34°C).The applicability of this potential is
verified only in the fluid region (up to ϕ=0.49) of PNIPAM microgels. Its applicability in
understanding the ordering, dynamics and the phase behaviour of microgels under dense conditions
needs to be investigated. Further, recent experiments on dense PNIPAM microgels showed (a)glass
transition upon lowering the temperature from VPT, (b) a stable FCC-HCP coexistence beyond ϕ >
0.74 and particle dynamics at short times being sub-diffusive. Motivated by these observations we
have performed canonical ensemble Monte Carlo (MC) simulations with MH potential for different
volume fractions (ϕ) and for varying temperatures and the results are reported here. Microgel
suspension parametersused in our simulations are same as that reported by Bergeman et al. Our
simulations show fluid (F) behaviour upto ϕ < 0.6, which is found to freeze into a glassy (G) state
upon increasing ϕ. The glassy state was found to transform to a crystalline (C) state beyond a volume
fraction of 0.64. Simulations results are discussed in light of experimental results on dense
suspensions of PNIPAM microgel spheres.
Keywords: Poly (N-isopropylacrylamide) (PNIPAM); volume phase transition (VPT) temperature;
Multi-Hertzian pair potential (MH).
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ICMM-2019 246 Book of Abstracts
ICMM:278 | Synthesis and characterization of ZnO-CuO nanocomposites
K. Kavitha*, Dr. T. Subba Rao, Dr. R. Padma Suvarna 1Research Scholar, Department of Physics, Jawaharlal Nehru Technological University,
Ananthapur-515002, Andhra Pradesh., INDIA 2Professor, Department of Physics, SK University, Ananthapur-515002, Andhra Pradesh,
INDIA 3Professor, Department of Physics, Jawaharlal Nehru Technological University,
Ananthapur-515002, Andhra Pradesh, INDIA
Mobile: (+91) 9493984573; E mail:[email protected]*
Abstract
In this work, we present the synthesis and characterization of nanoparticles suitable for
semiconductor applications using a simple and economical sol-gel process. ZnO-CuOis the potential
material because of its high thermal stability and low cost. Properties of the ZnO-CuO
nanocomposites are size dependent and when the particle size is reduced to the nanometer scales it
shows some novel properties. Sol-Gel method is a good method to synthesis ultrafine metallic oxide
nanocomposites and has been widely used for preparing nanoparticles at very low temperatures.
Nano-structured ZnO-CuO has been characterized by using various techniques like XRD, SEM, and
DSC-TGA. The phase transformation was investigated by an X-ray diffractometer (XRD). The
microstructure was characterized by a scanning electron microscope (SEM). DSC-TGA analysis was
used to investigate the thermal properties of the material.
Keywords: ZnO-CuO; Sol-Gel method; XRD; SEM; DSC-TGA.
Acknowledgements
We thank Dr. Shilpa Chakra, Head of the Dept., Dept. of Nanotechnology, and JNTUH for allowing
performing the experimental work under internship.
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ICMM-2019 247 Book of Abstracts
ICMM:284 | Enhanced Thermal Stability Regime in K0.5Na0.5NbO3-Ta2O5-
CO3O4 for Multilayer Ceramic Capacitor Applications
Cilaveni Goutham, Abhinav Kumar, Saket Asthana1* 1Advanced Functional Materials Laboratory, Department of Physics, Indian Institute of
Technology Hyderabad, Kandi(V), Sangareddy(dist), Telangana-502285, India
*Corresponding author. Mobile: (+91) 040 2301 6067; E-mail: [email protected]
Abstract
The search for electronic materials for device applications capable of operating in extreme
environmental conditions has been a significant challenge for scientists and engineers. Mostly,
market dominant high temperature Multilayer Ceramic Capacitors (MLCCs) used for various
applications, such as automotive, aeronautics, and nuclear industries are fabricated using BaTiO3
(BTO) based materials. The purpose of this study was to explore new material systems with higher
thermal stability than state of the art X7R materials, retaining high dielectric constant. K0.5Na0.5NbO3
(KNN)-based lead-free piezoelectric ceramics have received considerable attention due to their
potential piezoelectric properties, comparable with the market dominant lead based piezoelectric
ceramic (i.e., PZT) devices. Like BTO-based dielectric ceramics, formation of duplex core-shell
grain structure in KNN-based systems could induce an interesting effect on dielectric and
piezoelectric properties. The incorporation and influences of Ta and Co co-doping on the electrical
properties and microstructural evolution along with structural changes were investigated on ceramics
in the ternary system KNN-Ta2O5-Co3O4 (KNN-Ta-Co). KNN powders were synthesized by the
hydrothermal method with an average particle size of ~1μm. The KNN powders were weighed and
mixed with Ta2O5 and Co3O4 in desired compositions. The reaction of Ta2O5 and Co3O4 with KNN
has yielded secondary phases in the ternary system. The substitution of Ta and Co felicitates phase
segregation, evidenced by the appearance grain size variance in the microstructure. A decrease of
ferroelectric-paraelectric (Tm) and orthorhombic-to-tetragonal phase transition temperatures was
observed with substitution of Ta2O5 and Co3O4 in KNN. Moreover, dielectric constant (εr = 4050 at
100kHz) at Tm for KNN-Ta-Co is decreased in comparison with pure KNN (εr = 4250 at 100kHz)
along with the decrease in Tm = 380oC (pure KNN, Tm = 410
oC). Thus, based on the aforementioned
observations and analysis, it can be inferred that the KNN- based systems can be considered as a
pertinent candidate in the field of MLCCs.
Keywords: KNN-based; Dielectrics; Core-shell structures.
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ICMM-2019 248 Book of Abstracts
ICMM:286 | Surfactant Assisted Synthesis of Ruthenium Oxide
Nanoparticles for High Performance Supercapacitors
N. Varalakshmi a, A. Lakshmi Narayana, Yejun Qiubb, O.M. Hussainc, N.Y. Sreedhara* aElectroanalytical lab, Department of Chemistry, Sri Venkateswara University, Tirupati,517502, India.
b Shenzhen Engineering Lab of Flexible Transparent Conductive Films, Department of Materials Science and
Engineering, Harbin Institute of Technology, Shenzhen, 518055, China. cThin films Laboratory, Department of Physics, Sri Venkateswara University, Tirupati-517502, India.
Corresponding author email address: [email protected]
Abstract
Ruthenium oxide (RuO2) nanoparticles were prepared by surfactant assisted Co-precipitation
method with four different calcination temperatures from 100-400 °C. This present investigation is
aimed to study the effect of calcination temperature on the structural, morphological and
electrochemical properties. The XRD spectrum of calcined temperature at 300 °C exhibited high
intensity (111) orientation corresponds to cubic phase with Pa3 (205) symmetry. The variation in
calcination temperature in the synthesis process has strongly effect the structure and surface
morphology. The SEM analysis reveals as increasing calcination temperature the grain size is also
increased. The estimated average grain size is ranging from 50-150 nm respectively. The
electrochemical properties of RuO2 prepared at calcination temperature 300 °C shows perfect
rectangular shaped cyclic voltammetry curves representing pseudocapacitive behavior. The RuO2
electrode exhibited specific capacitance of 902 F g-1
at 1 A g-1
and retained 94% of capacitance even
after 4000 cycles. The outstanding electrochemical results proved that the surfactant assisted Co-
precipitation synthesized RuO2 (at calcination temperature 300 °C) is promising electrode for high
storage supercapacitor.
Keywords: Ruthenium oxide (RuO2), surfactant assisted Co-precipitation, Calcination temperature,
cyclic voltammetry, supercapacitor.
ICMM-2019 249 Book of Abstracts
ICMM:287 | The Impact of Various Concentrations of Dopant on The
Properties of Mn Doped Zns Quantum Dots in Presence of Thourea as
Capping Agent
Bijimol. D, Mamatha Susan Punnoose, Beena Mathew* School of Chemical Sciences, M.G. University, Kottayam, Kerala.
Corresponding Author: Email: [email protected]
Mobile: 9447145412
Abstract
In this work the impact of various concentrations of dopant ion on the structural and optical
properties of Manganese doped ZnS Quantum Dots (Mn ZnS QDs) in presence of a capping agent
has been investigated. Mn ZnS QDs with various concentration of Manganese were prepared by
simple, water based chemical precipitation method. The prepared Quantum Dots were characterized
by various techniques like X-ray diffraction spectroscopy (XRD), Scanning electron microscopy
(SEM), UV-vis. Spectroscopy, FT-IR spectroscopy; diffuse reflectance spectroscopy (DRS) and
Fluorescence spectroscopy (PL). The results revealed that the surface morphology, size and optical
properties of the Mn ZnS QDs were varied by dopant ion concentration. With increase in
concentration of dopant ion the absorption edge is shifted to lower wavelengths, as clear from the
obtained UV-vis. spectra of samples. FT-IR and PL results confirmed the incorporation of
Manganese into ZnS crystal structure, and XRD results showed that Mn ZnS nanoparticles
crystallized in a zinc blende structure without any impurity. PL intensity of the Mn ZnS QDs were
compared, and Mn ZnS QD (Mn 1mM) was found to have the highest PL intensity. In the
Photoluminescence spectra for the undoped ZnS QDs a blue peak at 450nm is obtained and for the
manganese doped ZnS QDs an orange peak centered at 598nm is observed in addition to blue
emission.
Keywords: Quantum dots, band gap, absorption edge.
Acknowledgements
Financial assistance is provided by UGC(under FDP scheme),Government of India is greatfully
acknowledged.
ICMM-2019 250 Book of Abstracts
ICMM:288 | Green Synthesis, Characterization and Catalytic property of
Gold Nanoparticles using Biophytum sensitivum Leaf extract
Mamatha Susan Punnoose, Bijimol D, Beena Mathew*
School of Chemical Sciences, Mahatma Gandhi university, Kottayam 686 560, Kerala,
India
Corresponding Author: Email: [email protected]
Mobile: 9447145412
Abstract
Biomediated methods of noble metal nanoparticles are feasible alternatives to physical and chemical
methods as they are safe, cost effective and non toxic. The prospect of exploring natural resources
like plant extracts for the synthesis of nanoparticles has become competent and environmental
benign. The present work introduces a microwave assisted one pot green synthesis of gold
nanoparticles using the fresh leaves of medicinal plant, Biophytum sensitivum as both the reducing
and capping agent. The synthesized stable gold nanoparticles show a characteristic surface plasmon
resonance peak in UV-visible absorption spectrum. The phytochemicals in the plant extract
responsible for the reduction of metal ions are obtained from Fourier Transform Infra Red analysis.
X-ray Diffraction study confirms the crystalline nature of nanoparticles. The diffraction peaks
corresponding to (111), (200), (220) and (311) planes correspond to face centered cubic geometry of
nanoparticles. Transmission electron microscopic analysis shows that the nanoparticles are almost in
spherical shape. The catalytic property of synthesised green gold nanoparticles is monitored by the
reduction of an azo dye, Congo red by sodium borohydride. And the degradation reaction follows
pseudo first order kinetics.Degradation of organic dyes is a major concern in the present scenario due
to its stability, fastness to sunlight, and resistance to degrading agents or microbial attack. It is easily
achieved by metal nanoparticles synthesised by green route. The high catalytic potential of metal
nanoparticles is attributed to its smaller structure and large surface to volume ratio.
Keywords: Microwave; Green; Gold nanoparticle; Biophytum sensitivum; Catalysis; Congo red
Acknowledgements
Financial assistance from UGC (JRF) is greatfully acknowledged.
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ICMM-2019 251 Book of Abstracts
ICMM:289 | Structural and Thermal Properties of Ni-doped Molybdenum
Disulfide (MoS2) Synthesized via a One-Step Hydrothermal Method
Niharika Chourasiya1*, Arun Kumar Singh, Aksh kumar Verma and Ashish
Verma Dr. Harisingh Gour Vishwavidyalaya, Sagar (M.P.), 470003, India
*Corresponding author. Mobile: (+91) 9479366805 ; E-mail: [email protected]
Abstract
In the present work, Nickel (Ni) doped molybdenum disulfide (MoS2), (MoS2:Ni)has been
synthesized via a facile one step hydrothermal method using ammonium molybdate
tetrahydrate[(NH4)6Mo7O24.4H2O], thioacetamide [CH3CSNH2] and nickel metal powder as
precursors. The structural properties of the synthesized material were characterized by Powder X-
Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR). Indexing of the peaks in
the XRD plot of the material indicates the formation of 2H- MoS2crystal structure. There is not much
difference between 2H-MoS2 XRD plot and MoS2:Ni XRD plot which confirms the successful Ni
doping in the molybdenum sites of MoS2. Presence and percentage of doped nickel in the sample has
been determined by Energy Dispersive X-Ray Spectroscopy (EDX) characterization for the
elemental analysis. Scanning Electron Microscopy (SEM) has been used for morphological studies.
Crystallite size and lattice strain of the prepared sample has been obtained by the Scherrer’s method
and W-H plot method respectively. For the analysis of thermal properties, Differential Scanning
Calorimeter (DSC) and Thermo-Gravimetric Analyzer (TGA) techniques have been used, which
shows that the material has good thermal stability.
Acknowledgements
Authors are grateful to UGC-DAE Consortium, Indore (M.P.) India for XRD characterization and
Dr. Harisingh Gour Vishwavidyalaya, Sagar (M.P.) India, for financial support during the research.
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ICMM-2019 252 Book of Abstracts
ICMM:290 | Thermoelectric Properties of Topological Semimetal LiAuTe Anita Yadav1, Shailesh Kumar2,3, Manoharan Muruganathan4, Rakesh Kumar1* 1Department of Physics, Indian Institute of Technology Ropar, Punjab-140001, India
2School of Chemistry, Physics and Mechanical Engineering, Queensland University of
Technology, Brisbane, QLD 4000, Australia 3Manufacturing Flagship, CSIRO, Lindfield West, New South Wales 2070, Australia
4School of Materials Science, Energy and Environment Area, JAIST, Nomi 923-1292, Japan
*Corresponding author. E-mail: [email protected]
Abstract
The study of topological semimetals and insulators have become a keen interest in the field of
solid-state physics which are known to possess properties that enhances the performance of a
thermoelectric (TE) material1,2
. In our study, we have performed ab initio calculations on non-
centrosymmetric ternary Half-Heusler (HH) compound, LiAuTe. The presence of spin-orbit coupling
results in the s-p band-inversion near the Fermi level and thus may be categorized as topological
semimetals. To understand its TE performance, transport properties are studied using Boltzmann
transport theory. The relatively lower value of lattice thermal conductivity of LiAuTe than other
conventional ternary compounds3, improves its performance as a potential TE material. Thus, the
findings may create more opportunities in experimentally realizing HH alloys as TE materials.
Keywords: Thermoelectric materials; ab initio calculations; Half-Heusler
Acknowledgements
We would like to thank MHRD for the award of research fellowship and also IIT Ropar for
providing the High Performance Supercomputing facility and research support.
ICMM-2019 253 Book of Abstracts
ICMM:294 | Biogenic Fabrication of Palladium Nanoparticles and its
Applications
K. Sandhya1, K. Girija Mangatayaru1* 1Department of Chemistry, Palamuru University, Mahabubnagar, T.S-509001.
*Corresponding author: Mobile :+919490148751; E-mail: [email protected]
Abstract
The Multifunctional Palladium nanoparticles have varied applications in many catalytic
reactions such as Reductions, Oxidations and Carbon-Carbon Coupling reactions as heterogeneous
catalyst and also in Anti-microbial; Anti-inflammatory activities .The biosynthesis of Metal
nanoparticles is the Simple, Cost- effective, Non-toxic, Bio-Compatible, Eco-friendly and
Economical method for the formation of Nanoparticles.Herein, we report that, the Phyto molecules
present in Azadirachta Indica act as reducing and stabilizing molecules for bio-synthesis of nano
sized palladium nanoparticles. The synthesized nanoparticles were found to be crystalline in nature.
The biosynthesized nanoparticles were characterized using UV-Visible spectrophotometer, FTIR,
XRD and SEM. These nanoparticles were found to involve in the Catalytic reduction of organic
compounds like Nitro phenols. Further, the palladium nanoparticles properties and other applications
are to be evaluated.
Keywords: Biosynthesis, Palladium nanoparticles, XRD, SEM.
ICMM-2019 254 Book of Abstracts
ICMM:295 | Spin Transport Propertiesof CoFeCrGa/GaAs/CoFeCrGa through
First Principles Calculations
P. Rambabu1,2*, V. Kanchana1
1Department of Physics, IIT Hyderabad, Kandi, Sangareddy- 502285, T. G., India.
2Department of Pure and Applied Physics, Guru Ghasidas Vishwavidyalaya, Koni,
Bilaspur-495009, India.
*Corresponding author. Mobile: (+91) 9074508220; E-mail:[email protected]
Abstract
Half metallic ferromagnetic materials have applications in spintronic devices because of their high
spin polarization. Spin gapless semiconductors belong to the class of half metals that have fully spin
polarized carriers at the Fermi level so that they exhibit large magnetoresistance and low spin
relaxation (Gilbert damping). Here in we report the electronic structure, magnetic exchange coupling
properties of LiMgPdSn-type spin gapless CoFeCrGa material through First principles calculations.
Also CoFeCrGa/ GaAs/CoFeCrGa magnetic tunnel junction is constructed and its spin transport
properties are calculated based on the density functional theory combined with non-equilibrium
Green’s function methods as implemented in QuantumATK package.
Keywords: Spin gapless semiconductors, Tunnelling magnetoresistance, spintronics.
ICMM-2019 255 Book of Abstracts
ICMM:297 | Structural, Morphological, Optical, Luminescence and Gas
Sensing Characterization of Pure and Ce Doped SnO2 Nanoparticles
Synthesised by Hydrothermal Method
D. Sunil gavaskar1, Y. Vijayakumar2, P. Nagaraju2, M.V. Ramana Reddy1
1Thin films and nanomaterials research laboratory, Dept. of Physics, Osmania
University, Hyderabad-500007. 2Nanosensor Research Laboratory, Dept. of Physics, CMR Technical Campus,
Hyderabad-500007.
*Corresponding author. Mobile : +919966258085, [email protected]
Abstract
SnO2 and Ce doped SnO2 nanoparticles were synthesised by using low cost hydrothermal method. All
the samples were characterised by using X-ray diffraction (XRD), Scanning electron microscopy (SEM) with
EDAX, Fourier transform infrared spectroscopy (FT-IR), PL spectrophotometer and UV-Vis
spectrophotometer. XRD confirms the polycrystalline nature of the nanoparticles with preferred orientation
along (211) direction. The lattice parameters, texture coefficients and crystallite size were determined from
XRD data. Homogeneous distribution of nanoparticles was observed by SEM. Elemental mapping and EDAX
studies confirmed the existence of Sn, O and Ce elements in the synthesised nanoparticles. The
photoluminescence (PL) studies indicate that presence of emission peaks in ultraviolet region and visible
region of the spectra and it was shifted due to the concentration of the doping element. The optical band gap
was determined using Tauc plot and it is found to decrease with the addition of cerium element. Gas sensing
characterization of pure and Ce doped SnO2 nanoparticles were carried out in static liquid distribution method
towards different concentrations of ammonia at room temperature. Response and recovery times were also
calculated and reported.
Keywords:Hydrothermal, XRD, SEM, PL and Gas sensing.
Acknowledgements: The authors thanks to the Head, Dept. of physics, Osmania University, Hyderabad. One
of the authors DSG thanks to the UGC-JRF New Delhi, and also MVRR thanks to the DST (SERB) New
Delhi, file no: EMR/2017/002651 for providing financial assistance to carry out this work.
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ICMM-2019 256 Book of Abstracts
ICMM:301 | Improved Insulating and Dielectric Properties in Ho and Sc
Doped BiFeO3
T Durga Rao1,2*, B. Sattibabu1, Saket Asthana2#
1Department of Physics, Institute of Science, GITAM University, Visakhapatnam, Andhra Pradesh-530045,
India 2Advanced Functional Materials Laboratory, Indian Institute of Technology Hyderabad, Telangana, India
*T Durga Rao. Mobile: (+91) 7288023434; E-mail:[email protected] #Saket Asthana. Mobile: (+91) 040-23016067; E-mail:[email protected]
Abstract
BiFeO3 is one of the well-known room temperature multiferroics among all multiferroics. Its
high ferroelectric Curie temperature (TC = 1103 K), magnetic Neel temperature (TN = 643 K) and the
coupling between spin and charge in it attracts many researchers since several years. However, the
potential of BiFeO3 in device applications is limited due to the presence of oxygen vacancies and
Fe2+
/Fe3+
ions. It is impressed the researchers that the substitution of elements at A-site and/or B-site
effectively tackles these issues and improves the insulating character properties. In this work, BiFeO3
(BFO), Bi0.9Ho0.1FeO3(BHFO) and Bi0.9Ho0.1Fe0.95Sc0.05O3(BHFSO) compounds are prepared by
using convention solid state reaction method. The detailed experimental procedure can be found
elsewhere. Phase analysis of the prepared compounds is examined by X-ray diffractometer
(Panalytical X’pert Pro). The temperature and frequency variation of impedance and dielectric
properties are investigated by using Wayne Kerr 6500B impedance analyser. The X-ray diffraction
patterns of BFO, BHFO and BSFSO compounds are crystallized in R3c rhombohedral crystal
structure. However, a small phase percentage of orthorhombic structure with Pnma space group is
evidenced in BHFO and BHFSO compounds which is also confirmed from the Rietveld refinement
using Fullprof software. The grain and grain boundary resistances at different temperatures are
analysed using complex impedance studies. The activation energies obtained from the temperature
variation of grain and grain boundary resistances and ac conductivity data follow Arrhenius
equations. The obtained activation energies clearly indicate that the co-substitution of Ho and Sc
improves the insulating character of BFO. The enhanced dielectric properties are also observed in the
co-substituted BFO compound.
Keywords: Multiferroics, impedance studies, dielectric properties.
ICMM-2019 257 Book of Abstracts
ICMM:401 | Investigation of the Structure, Dielectric and Ferroelectric
Properties of Lithium Doped Lead Free Sodium Potassium Niobate Ceramic
A. Rashid and Dr N. V. Giridharan Advanced Functional Materials Laboratory, Department of Physics, National Institute of
Technology, Tiruchirappalli 620 015, India
Corresponding author. Mobile: (+91) 9645306605; Email:[email protected]
Abstract
Presently, the most promising family of lead-free piezoelectric ceramics is based on K0.5Na0.5NbO3
(KNN).Lithium(Li+) modified Lix(KNa)1-xNbO3 (x =0.01,0.03,0.05,0.07,0.09) piezoelectric ceramics have
been synthesized by the conventional solid state processing technique sintered at 1080oC ,thereby enhancing
the ferroelectric and dielectric properties. In this work we present X-rd, dielectric permittivity and ferroelectric
measurement results of KNN ceramic doped lithium.According to XRD patterns, up to x=0.05 it exhibit single
phase perovskite orthorhombic structure, then gradually changes to tetragonal structure. Its dielectric
properties were investigated in broad frequency (from 100 Hz to 1 GHz) ranges. At room temperature
obtained results show dielectric constant increased by the percentage of doping. The comparison of
ferroelectric behaviour (P-E hysteresis loop) revealed that substituted sample obtained better saturation at
same applied electric fields at room temperature.
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ICMM-2019 258 Book of Abstracts
ICMM:405 | Spectroscopy Studies in Predicting the Extent of Damage in
Portlandcement at Elevated Temperatures
Nari Vivek 1*, B. Mahesh Reddy 1, B Shiva Kumar 1, K Ankush 1 1Department of Civil Engineering, Geethanjali College of Engineering and Technology,
Hyderabad; 501301; India.
*phone number: 9059150943 E-mail: [email protected]
Abstract
Spectroscopy is the interaction between matter and electromagnetic radiation, which is useful in the
determination and characterisation of various chemical composition existing in the material. Present
paper, focuses on predicting the extent of thermal damage on hydrated Portland Cements (PC), using
Fourier Transform Infrared Spectroscopy (FTIR). The hydrated specimens of Portland Pozzolana
Cement (PPC) and Ordinary Portland Cement (OPC),were subjected to temperatures ranging from
27 °C - 800 °C, for aninterval of every 100 °C was analysed. Variation in the absorbance peaks
obtained from FTIR, is correlated with the Thermal analysis (TA). At temperatures beyond 400 °C,
reduction in the absorbance values at wavenumbers of 3430 – 3440 cm-1
of Ettringite phase for PPC
and OPC specimenswas observed. However, in OPC specimens, an increase in the absorbance values
of Portlandite phase at wavenumbers ranging from 3640 – 3645 cm-1
was observed. The phase
changes taking place in the PC specimens observed using FTIR, are in good agreement with the mass
loss and heat flow plots obtained from Thermal Analysis. Therefore, it can be concluded that FTIR
analysis is suitable test method in predicting the thermal damage of concrete specimen.
Keywords: Thermal Analysis; Portland Cements; Thermal behaviour; Spectroscopy.
Acknowledgements
The authors acknowledge the help provided for thermal analysis test at CAM-NIT-Warangal.
ICMM-2019 259 Book of Abstracts
ICMM:407 | Thermal Properties of Hybrid Natural Fiber Reinforced
PolymerMatrix Composites with SiC as Filler
Devaiah Malkapuram*, Murali Krishna, N.N. Denesh, G. Sai Siddharth Reddy, J. Nithien
Department of Mechanical Engineering, Geethanjali College of Engineering and Technology, Hyderabad,
Medchal Dist. 501301, Telangana State, India.
*Devaiah Malkapuram.Mobile: (+91) 9948606326; E-mail:[email protected]
Abstract
Scientists and technologists attracted towards natural fibers like banana, cotton, coir, sisal, hemp and
jute for the application civil structures and consumer goods. It was identified the electrical resistance,
thermal and acoustic insulating properties for possessing of these natural fibers in composites.
Natural fibers have many benefits co
mpared to artificial fibers, as an example less density, less weight; low cost, specific properties and
they are recyclable and biodegradable. There aren’t any skin effects because of high strength and
stiffness, renewable. In alternative manner, there also are some limitations, as an example less
thermal stability and wetness uptake. several of them studied a major improvement in propertiesof
hybrid composites with reinforced with glass fiber in resin contenthowever it’s naturally hazard with
usage of this glass fiber content. There are many publications on review of fiber reinforced
composites, a notable research has been done on natural fiber polymer composites but research on
jute, hemp, hybrid of jute fiber and hemp fiber, hybrid (jute/hemp) fiber with SiC particulates as
filler at specific extent fractions primarily.
In this paper, hybrid (hemp and jute) fiber reinforced epoxy matrix composites were fabricated by
using hand lay-up technique of different weight percentage of hybrid fiber and SiC particulates as
filler have been studied and their thermal properties such as density, Thermal gravimetric analysis
(TGA) and Differential Scanning Calorimetry (DSC) by which we can know thermal stability of the
composites
Keywords: Natural Fibers, Hybrid fibers, SiC, Thermal properties, Hand Lay-up Technique.
ICMM-2019 260 Book of Abstracts
ICMM:408 | Mechanical Properties of Hybrid Natural Fiber Reinforced
Epoxy Matrix Composites with SiC as Filler
Devaiah Malkapuram*, Murali krishna, N. N. Denesh, G. Sai Siddharth Reddy Department of Mechanical Engineering, Geethanjali College of Engineering and Technology, Hyderabad,
Medchal Dist. 501301, Telangana State, India.
*Devaiah Malkapuram.Mobile: (+91) 9948606326; E-mail:[email protected]
Abstract
Now a day’s waste becoming an environmental impact globally, the focus of the researchers
have to admin the problem caused by the waste. As a part of its bio-degradable materials research is
a necessary task used for automotive applications. Natural fibers mostly known as extracted fibers
from plants which are available in large scale may solve the requirements of industrial components
as well as automotive needs. The replacement of plastics with natural fiber components is one good
choice to avoid large dump of thermo and thermo setting plastics. To attain the standards of solving
desires of plastic thing replacements researches wished within the vicinity of natural fibers to obtain
the comparative properties of plastics. To expand composites with good mechanical, chemical
amendment of fibre achieved to reduce the hydrophilic conduct of fibers and the absorption of
moisture. There are many publications on review of fiber reinforced composites, a notable research
has been done on natural fiber polymer composites but research on jute, hemp, hybrid of jute and
hemp fiber, hybrid (jute/hemp) fiber with SiC particulates as filler at specific extent fractions
primarily based polymer composites are uncommon.
In this paper, hybrid natural fiber reinforced epoxy matrix composites were fabricated using
hand lay-up techniquewith different percentage of hybrid fiber and SiC filler have been studied and
their mechanical properties such as tensile strength, compressive strength, flexural strength and
hardness have been reported. It is observed that the tensile and compressive strength increases with
hybrid fiber reinforcement and SiC filler. Failure mechanism of hybrid fiber composites has been
discussed using scanning electron microscopy.
Keywords: Natural Fibers, Hybrid, Mechanical properties, hand layup Technique.
ICMM-2019 261 Book of Abstracts
ICMM:412 |A Novel Lanthanum and Bismuth Based Self-Cleaning
Nanocomposite for Organic Pollutants
Thomas Abraham, Kannan. S, Beena Mathew* School of Chemical Sciences, M.G. University, Kottayam, Kerala.
Corresponding Author: Email: [email protected]
Mobile: 9447145412
Abstract
The contamination of water bodies in the surroundings is due to the accumulation of toxic organic
pollutants such as pesticides, herbicides, dyes etc. The degradation of these pollutants are difficult
due to their severe interactions with the solvents. There are several photocatalyst synthesized for the
better degradation of these organic pollutants and severe toxic organic dyes. In this paper, an
efficient and a simple photocatalyst is prepared based on less toxic lanthanum and bismuth
nanoparticle. The synthesized binary composite consist of lanthanum and bismuth, which provides
well degradation for these pollutants. The structural identification of the synthesized binary
composite is done by FT-IR and PXRD and themorphological peculiarity of the nanocomposite is
done by using SEM and TEM analysis. The weight % optimization of the binary nanocomposite is
done by using UV spectroscopy. The results of photocatalytic studies reveal that the highest
photocatalytic activity and stability were obtained for the binary composite with (47% La) and it can
be used to oxidize 81% of methylene blue within 120 minute. The successful photodegradation of the
insecticide acepahte can be effectively done by using the synthesized binary composite. The
mechanism of the photodegradation involves the effective transfer of electrons from the valence band
of Bi2O3 to the conduction band of La2O3. The photodegradation efficiancy of the nanocomposite is
analyzed by using Total Organic Carbon (TOC) analysis.
Keywords: Pesticides, herbicides, photocatalyst, nanocomposite
Acknowledgements
The present work was supported by DST-PURSE PII (SR. 417 & SR. 416 dated 27-2-2017) and
Mahatma Gandhi University, Kottayam, Kerala, India.
ICMM-2019 262 Book of Abstracts
ICMM:422 | Gamma Ray Interaction Studies of Some of Nucleosides in the
Energy Range 122 to 1330 KeV Pradnya L. Agale, Pooja M. Sontakke, Chaitali V. More, Dr. Pravina P. Pawar.
Department of Physics, Dr. Babasaheb Ambedkar Marathwada University,
Aurangabad: 431 004 India.
* Pradnya L. Agale. Mobile: (+91) 9527070266; E-mail: [email protected]
Abstract
The mass attenuation coefficient (μ/ρ) of certain bio molecules precisely nucleosides formed
by C,H,O and N are studied. It is calculated by using gamma ray photons varying in the energy range
122-1330 KeV. Further some derived values such as linear attenuation coefficient (μ), effective
atomic number (Zeff), effective electron density (Neff), total cross sectional area ( σtotal), mean free
path (X),molar extinction coefficient (ϵ), half value layer(HVL),tenth value layer(TVL). The
specimens studied are Thymidine (C10H14N2O5), Inosine (C10H12N4O5) and Adenosine(C10H13N5O4)
measured at 122, 356, 511, 662, 1170, 1275 and 1330 keV photon energies using a well-collimated
narrow beam good geometry set-up. The gamma -rays were detected using NaI (Tl) scintillation
detection system with a resolution of 10.2% at 662keV. The results show that, the experimental
values of mass attenuation coefficients, effective atomic numbers and effective electron densities are
in good agreement with the theoretical values with less than 1% error.
Keywords: Mass attenuation coefficients; Atomic cross-section; Electronic cross-section; effective
atomic number; Effective electron density, scintillation detection system.
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ICMM-2019 263 Book of Abstracts
ICMM:424 | Preparation and Characterization of Cobalt Ferrite
Nanoparticles for Hyperthermia Applications
Aqsa Samreen, Farha Naaz, Shaikh Saima Anam, Shaikh Zeba Anjum, K.M.
Jadhav Dr. Babasaheb Ambedkar Marathwada University, Aurangabad.
*Aqsa Samreen, Mobile no.: 7620559926, E-mail: [email protected]
Abstract
Recently, magnetic nanoparticles are of current interest in biomedical applications. The present
paper deals with the synthesis of cobalt ferrite nanoparticles and their characterizations.The synthesis
was carried out using well known sol-gel auto combustion technique. Dextrose was used as chelating
agent/fuel in the synthesis process. The functionalization was carried out using oleic acid as a coating
agent. The phase purity and structural properties were investigated using X-ray diffraction technique
at 300K. The analysis of X-ray diffraction data proves the formation of single phase cubic structure.
The crystalite size obtained through Debye-Scherrer’s formula indicates the nanocrystalline nature
of the prepared samples. The other structural parameters like lattice constant, X-ray density etc. are
in reported range. The magnetic properties like saturation magnetization, coercivity etc. were studied
using pulsed field hysteresis loop tracer technique. The measurements were taken at room
temparature. The M-H plot shows typical ferrimagnetic behaviour with superparamagnetic nature.
The obtained values of crystalite size, lattice constant, saturation magnetization, coercivity,
remenance magnetization and remenance ratio all are excellent and are most suitable for biomedical
applications (Magnetic Hyperthermia). The studies related to induction heating are in progress.
Keywords: Cobalt ferrite nanoparticles, XRD, M-H plot, Hyperthermia
ICMM-2019 264 Book of Abstracts
ICMM: 426 | An Overview on White Cast Irons and High Chromium White
Cast Irons
Mbulelo Nqwase, Xiaowei Pan* Metallurgy Department, University of Johannesburg, Johannesburg, 2194, South Africa
*Mobile (+27) 083 456 3514, Email: [email protected]
Abstract
Crushing and grinding are widely used in mining, mineral processing, cement making, and
coal power generation. The mechanical components that contact with materials being processed are
working under the conditions of high abrasion and impact. How to reduce the wearing damages and
prevent from the cracking failure of the mechanical parts is one of the crucial challenges facing the
operations of many industries, involved crushing and grinding processes. Whit cast irons, and
specifically high chromium white cast irons, have been developed and deployed worldwide for
making mechanical components of crushing and grinding machines due to the combination of high
wear resistance and good mechanical strength. The paper is aimed to give an overview on the white
cast iron alloys, and particularly high chromium white cast iron alloys with 28 references, including
their classifications, their standard specifications in USA, China and Australia, their main usages and
new developments.
Keywords: white cast iron; high chromium white cast irons; high wearing resistant alloys; crushing
and grinding
Reference
7. F. Nyokong and X. Pan, “A Review on Usage of High Chrome White Cast Irons in South
Africa,” Tamil Nadu, India, 2019.
8. T. X. L. D. Y. H. B. a. D. K. Chung R. J., “Microstructure Refinement of Hypereutectic
High Chromium Cast Irons Using Hard Carbide-Forming Elements for Improved Wear
Resistance,” Science Direct, vol. 301, pp. 695-706, 2013.
9. C. Mahlami and X. Pan, “Main challenges and developments of high manganses steel
castings based on service life,” 71st World Foundry Congress, Bilbao, Spain, 2014.
10. C. Mahlami and X. Pan, “An overview of high manganese steel casting,” 71st World
Foundry Congress Bilbao, Spain, 2014.
11. G. Nelson, “Influence of Microstructure on the Corrosion and Wear Mechanisms of High
Chromium White Irons in Highly Caustic Solutions,” Dissertation / School of Mechanical
Engineering, Adelaide, South Australia , 2010.
12. C.S Mahlami; X Pan, Mechanical properties and microstructure evaluation of manganese steel alloyed with vanadium, FCSPTC international conference, Andhra Pradesh, India, 2017, pp227-236.
ICMM-2019 265 Book of Abstracts
ICMM: 427 | Microstructural Investigation on Heat Treatment of
Hypoeutectic High Chromium White Cast Iron
Mbulelo Nqwase, Xiaowei Pan* Metallurgy Department, University of Johannesburg, Johannesburg, 2194, South Africa
*Mobile (+27) 083 456 3514, Email: [email protected]
Abstract
High chromium white cast irons (HCWCI) are widely used as abrasion resistant materials in
cement manufacturing, mineral processing and slurry pumping industries. Their high resistance to
wear in these demanding situations stems from the presence of hard eutectic (Cr,Fe)7C3 carbides in
their microstructures. In this context, the properties of hypoeutectic iron of HCWCI containing 25 wt.
%Cr-2.5 wt. %C were investigated after destabilisation heat treatments, cooling (slow and fast
cooling) to ambient temperatures, their influence on the microstructure was investigated. For
characterization of the hypoeutectic iron of HCWCI, several experimental tests were performed
using the following laboratory equipment: light optical microscope, scanning electron microscope.
The amount of retained austenite also depends on the alloying additions in the melt during melting
processes, destabilisation temperatures, soaking time and the cooling rates during heat treatment
processes.
Keywords: white cast iron; high chromium white cast irons; high wearing resistant alloys; microstructure
Reference (part)
13. F. Nyokong and X. Pan, “A Review on Usage of High Chrome White Cast Irons in South
Africa,” Tamil Nadu, India, 2019.
14. T. X. L. D. Y. H. B. a. D. K. Chung R. J., “Microstructure Refinement of Hypereutectic
High Chromium Cast Irons Using Hard Carbide-Forming Elements for Improved Wear
Resistance,” Science Direct, vol. 301, pp. 695-706, 2013.
15. C. Mahlami and X. Pan, “Main challenges and developments of high manganses steel
castings based on service life,” 71st World Foundry Congress, Bilbao, Spain, 2014.
16. C. Mahlami and X. Pan, “An overview of high manganese steel casting,” 71st World
Foundry Congress Bilbao, Spain, 2014.
17. G. Nelson, “Influence of Microstructure on the Corrosion and Wear Mechanisms of High
Chromium White Irons in Highly Caustic Solutions,” Dissertation / School of Mechanical
Engineering, Adelaide, South Australia , 2010.
18. C.S Mahlami; X Pan, Mechanical properties and microstructure evaluation of manganese steel alloyed with vanadium, FCSPTC international conference, Andhra Pradesh, India, 2017, pp227-236.
ICMM-2019 266 Book of Abstracts
ICMM:429 | Analysis of Camshaft for Straight Line Six Cylinder’s IC Engine
D. Revathi1, Dr. N. Sujan Rao2, Dr. TVSMR Bhushan3*
1PG Student, Department of Mechanical Engineering, Nalla Malla Reddy Engineering
College, Hyderabad, 500088, India 2Associate professor,Department of Mechanical Engineering, Nalla Malla Reddy
Engineering College, Hyderabad, 500088, India 3Associate professor & HOD,Department of Mechanical Engineering, Nalla Malla Reddy
Engineering College, Hyderabad, 500088, India
*Corresponding author. Mobile: (+91) 8125575046; E-mail:[email protected]
Abstract
The camshaft is generally used in IC engine driven by crankshaft via timing gear to operate
poppet values to control the flow of air/fuel mixture for suction and exhaust strokes of cylinders. The
camshaft rotates at very high speed, critical loads causes vibrations in system and it is subjected to
varying fatigue loads due to the contact of the follower on the cam. These critical values are needed
to determine to avoid failures in camshaft. In this paper, six cylinder camshaft is modeled and
analyzed by varying loads with respect to speed and time. The 3Dmodel of camshaft is designed in
CATIAV5R20 modelling software. In this present work, chilled cast-iron and Billet steel are
replaced with different selected materials are Malleable cast-iron, NiCrMo alloy steel, SS316,
EN24T and C55Mn15.The dynamic analysis, Fatigue analysis and Modal analysis is carried out
usingANSYS2019R2 software. Dynamic analysis is done to find the deformations, stresses and
strains. Modal analysis is done to determine natural frequencies at different mode shapes and Fatigue
analysis is done to estimate the life of the component. The simulated results are compared with
theoretically calculated value and it shown good agreement.
Keywords: cylinder’s camshaft; CATIAV5R20; dynamic; fatigue; modal.
Acknowledgements
I would like to thank Nalla Malla Reddy Engineering College, for providing all facilities for this
project and special thanks to Dr. N. Sujan Rao and Dr. TVMSR Bhushan for their value input and
technical support for this project. .
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ICMM-2019 267 Book of Abstracts
ICMM:430 | Finite Element Crash Simulation Of an Automobile by using LS-
DYNA
Naikodi Chaitanya1 and M.N.V. Ramesh2*
1PG Student, Department of Mechanical Engineering, Nalla Malla Reddy Engineering College, Hyderabad,
500088,India 2Department of Mechanical Engineering, Nalla Malla Reddy Engineering College, Hyderabad, 500088, India
*Corresponding author: Mobile: (+91) 9849024369; E-mail:[email protected]
Abstract
The objective of the current work is to estimate the maximum displacement and energy
absorption capacity of fascia and body in white structure during crash. The details of the Fascia and
body in white structure are taken from Honda Accord Model. The crash tests are performed on fascia
considering the Dual Phase 600 Steel, TI6AL4V alloy and Acrylonitrile Butadiene Styrene (ABS)
Plastic materials. The fascia crash test is performed as per United States New Car Assessment
Programand and Roof crush test is performed as per federal motor vehicle standards 216.
Deformation and energy absorption capacity during crashing have been analyzed by using finite
element solver LS-DYNA. The results show that, the energy absorption capacity of Dual Phase 600
Steel is greater than that of TI6AL4V alloy and Acrylonitrile Butadiene Styrene (ABS) Plastic during
the fascia crash test. In case of roof crush test, resultant displacement of Dual Phase 600 steel is less
compared to TI6AL4V Alloy. This analysis helps in selection of material which can minimizes the
damage during vehicle accidents.
Keywords: Fascia; FEM; LS-DYNA.
ICMM-2019 268 Book of Abstracts
ICMM:432 | X-ray Attenuation Coefficient of Niobium compound Using
Synchrotron Radiation Source in the Energy Range 18.913 to 19.668 keV G. Manjula1*, Bunty Rani Roy1, Ashok Kumar Yadav2, A.S. Nageswara Rao1
1Department of Physics,Kakatiya University,Warangal,506001,India.
2Bhabha Atomic Research Center,Mumbai, 400085,India.
*Corresponding author. Mobile: (+91) 9391737293;E-mail:[email protected]
Abstract
X-ray mass attenuation coefficient of Niobium compound is measured in the energy range from
18.317 keV to 19.668 keV around the k-edge using Scanning EXAFS Synchrotron radiation Source.
The observed values are compared with the theoretical predictions XCOM and FFAST. The results
and discrepancies obtained are discussed.
Keywords: Mass attenuation Coefficient; EXAFS; Synchrotron Radiation.
ICMM-2019 269 Book of Abstracts
ICMM:501 | Biological Evaluation of An Novel in-Situ Polymerised
Polyaniline Cerium Vanadate Nanocomposite and its Application in
Environmental Remediation
Vinisha Valsaraj P1*, Anet2 1Department of Chemistry, Sree Narayana College, Kannur, Kerala 670007, India
2Department of Physics, Sree Narayana College, Kannur, Kerala 670007, India
**Corresponding author. Mobile: (+91) 9495468840; E-mail: [email protected]
Abstract
In the present work, a novel polyaniline cerium vandate nanocomposite were facilely prepared
by in-situ polymerized sol-gel process. X-ray diffraction (XRD) pattern revealed the crystal planes
and size of the synthesized nanocomposite. The morphological shape and the crystalline nature of the
nanocomposite were examined by field emission scanning electron microscopy (FESEM). Energy
dispersive X-ray spectroscopy (EDX) affirmed the presence of elemental composition and purity of
the fabricated nanocomposite. Fourier transform infrared spectroscopy (FT-IR) confirmed the
conceivable stretching frequency on the surface of nanocomposite. Polyaniline cerium vanadate
nanocomposite was used as a solid phase adsorbent for removing methylene blue (MB) from aqueous
media. Desorption of the dye and recycling potential of the adsorbent was also studied. Besides,
these nanocomposite evinced antimicrobial activity against E.coli and Staphylococcus aureus. The
studies describing the synthesis of polyaniline cerium vandate by simple in-situ polymerised sol-gel
method followed by the investigation of adsorption and antimicrobial activities may be useful for the
research activities to open a new horizon in the field of nanotechnology.
Keywords: Polyaniline; cerium vandate; antimicrobial activity; dye adsorption.
Acknowledgements
The authors acknowledge their thanks to Nirmalagiri College, Koothuparamba, Biogenixresearch
Centre, Thiruvananthapuram and SAIF, Cochin for providing facilities for characterization. They are
also thankful to KSCSTE, Thiruvananthapuram.
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ICMM-2019 270 Book of Abstracts
ICMM:503 | Effect of Sm3+ ions on Structural and Thermal Properties of
PVA+PEG Nano Polymer Films
V.Vinay Krishna1, J.Suresh Krishna2, M. Hemalatha2, D. Siva Raju2 and
Ch. Linga Raju2* 1Department of E & IT, Acharya Nagarjuna University, Nagarjuna Nagar-522510, India
2Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar-522510, India
*Corresponding author. Mobile: (+91) 9490750027; E-mail:[email protected]
Abstract
A Series of complex blended polymer films of poly (vinyl alcohol) (PVA) and poly (ethylene
glycol) (PEG) with doping of various concentrations of active Sm3+
ions (1-5 mol %) were
synthesized by the mechanism of solution casting technique. From the analysis of X-ray diffraction
(XRD) and FTIR spectra, the structural analysis and molecular level interactions were observed,
which results in reduction of the poly crystalline nature of the blended films. Scanning electron
microscopy (SEM) studies reveals the uniform dispersion and coordinated complexes formation over
the surface. Thermo gravimetric analysis (TGA) and differential scanning calorimetric (DSC)
analysis are used for examination of thermal behaviour of the polymer blends, which shows
enhancement in their thermal degradation and strength. The complex miscible polymer blends
(PVA+PEG) doped with 5.0 mol % of Sm3+
ions are acting as a prominent host material for
designing and development of opto electronic and luminescent devices.
Keywords:Polymer blend; Solution-casting; Poly Crystalline;Coordinated Complexes.
ICMM-2019 271 Book of Abstracts
ICMM:504 | Synthesis and Property Analysisof Poly-Acryl-Amide
(PAM)/Poly-Vinyl-Alcohol (PVA) Blend Thin Films
Rashmi S. Adoor1,2*,Sushant A. Haladkar3, Susheelkumar G. Adoor4,
Narasimha H. Ayachit5. 1 Department of Physics, Rani Channamma University, Belagavi, India
2Department of Physics, K.L.S. GogteInstitute ofTechnology, Belagavi, India
3Department of Applied Physics, Defence Institute of Advanced Technology, Girinagar
,
Pune, India 4Department of Chemistry, Govindram Seksaria Science College, Belagavi, India
5KLE Technological University, Hubli, India
*Corresponding author. Mobile: (+91)7829196540; E-mail:[email protected]
Abstract
We present a study of variations in dielectric properties for polymeric blend films of
poly(acrylamide) (PAM)/Poly(vinylalcohol) (PVA). Initially, the PAM and PVA were used to obtain
apolymeric blend solution in distilled water. Preparation of blended films was conducted by adrying
process. Films of pure PAM, pure PVA and blend films (w/w%) were characterizedby X-ray
diffraction (XRD) and scanning electron microscopy (SEM). The characterizations revealed proper
trends for the films depending upon weight percent (PAM:PVA:: 20:80, 40:60, 60:40, 80:20).
Variations in their dielectric property were investigated by use of a LCR (inductor capacitor resistor)
meter.
Keywords:Poly(acryliamide) (PAM); Poly(vinylalcohol) (PVA); thin blend films; dielectric
constant.
Acknowledgements
The authors thank to Department of Physics K.L.S.G.I.T., India, Department of Applied Physics,
Defence Institute of Advanced Technology, India, Department of Chemistry, Govindram Seksaria
Science College, India, Department of Physics, RCU, India.
ICMM-2019 272 Book of Abstracts
ICMM:505 | Effect of Phenol Red on the Optical Properties of Biodegradable
Polymer Composite Films
Ismayil1*, Swathi1
1Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher
Education, Manipal, Karnataka - 576104, India
*Corresponding author. Mobile: (+91) 98454 97546; E-mail:[email protected]
Abstract
Phenol red dye doped Carboxymethyl Cellulose biodegradable polymer films of different
dopant concentrations were prepared by conventional solution casting method. The optical properties
of these films for different Phenol red concentration were investigated using UV-Visible
spectroscopy and the fluorescence spectroscopy and the corresponding microstructure behavior of
the polymer matrix have been studied using SEM and XRD techniques. UV-Visible study shows that
new peaks emerged at around 270nm and 440nm for doped films. Optical absorption increases with
increasing dopant concentration. The variations of optical energy band gap, Urbach energy upon
doping were studied. Optical energy gap of the sample shifted from 5.21eV to 4.21eV upon doping.
The variations of optical dielectric constant and refractive index with wavelength of the doped films
have also been studied. XRD study reveals the fact that there is anincrease in amorphousnessand also
reduction in the inter chain distance within the polymer matrix.Photoluminescence study show that
the fluorescent quenching takes place upon doping due to increase in the free volume size. The
change in the microstructure and hence the modification in the physical properties of the polymer
composite films are correlated.
Keywords:Polymer microstructure; free volume; structure-property relationship.
ICMM-2019 273 Book of Abstracts
ICMM:511 | Ferroelectric Polymer Composite as Radio Absorbing Material
(RAM) for 5th Generation Stealth Fighter Aircraft
Ayush Sharma1, Sudheendra. S. Kulkarni2,* and Udaykumar.V. Khadke3 1Department of Electronics and Communication Engineering, KLS Gogte Institute of
Technology, Belagavi, an autonomous institution, Affiliated to Visveswayara
Technological University, Belagavi-590008 Karnataka India. 2Department of Physics, KLS Gogte Institute of Technology, Belagavi, an autonomous
institution, Affiliated to Visveswayara Technological University, Belagavi-590008
Karnataka India. 3Department of Physics, Vijayanagar Sri Krishnadevaraya University, Bellary,
Karnataka, India.
*Corresponding author. Mobile: (+91) 9448863772; E-mail:[email protected]
Abstract
In this paper we report the method of synthesis of ferroelectric polymer Polyvinyldene
fluoride (PVDF) and three different types of materials viz: Barium Titanate (BaTiO3) Titanium
dioxide [PT] and Zinc oxide [PZ] in PVDF matrix as self-supporting thin films and its dielectric
response. These ferroelectric polymer composites each with five different concentrations were
synthesized by solution mixing method using Dimethylformadide (DMF) as a solvent. The XRD
pattern confirms the formation of tetragonal pervoskite structure of ferroelectric phase and shows
proper mixing of particles intestinally and found to be improving its crystallinity with increase of
composition in the PVDF matrix. The dielectric properties of the composites as a function of
frequency were measured using impedance analyser. The dielectric constant decreases with increase
of frequency shows the Maxwell – Wagner type of interfacial polarization in accordance with Koop’s
phenomenological theory. Further experimental on Military Radio Absorbing property for
ferroelectric polymer composites using academic Microwave waveguide setup in both X band & S
band were studied. Thin films were inserted between Transmitter and Microwave detector for initial
power of 40 dB for and 26.9 dB for X band and S band respectively. Ferroelectric polymer
composite PT have shown good Radio Absorption compare to PZ composites. Moreover PB shows
an absorption of 20% of the incident Microwave which is desirable and can be used for the 5th
generation stealth fighter Aircrafts and other Military stealth application, while the other polymers
are Microwave transparent in both X band and S band and can be used ‘Radome’ material for the
nose of the Fighter aircraft.
Keywords: PVDF:Polyvinyldene fluoride; PB: PVDF- BaTiO3; PZ= PVDF- ZnO; PT= PVDF- TiO2
ICMM-2019 274 Book of Abstracts
ICMM:514 | Effect of Copper Oxide nanofillers on PVA/PVP Blend
Rajesh K1, Vincent Crasta1** , Rithin Kumar N B2, Gananatha Shetty B1
1 St Joseph Engineering College Mangaluru, 575028, Karnataka, India
2A J Institute of Engineering and Technology, Mangaluru, 575 006, Karnataka, India
**Mobile: +91 9448253901; E-mail:[email protected]
Abstract
Polyvinyl alcohol (PVA)/Polyvinylpyrrolidone (PVP) (50/50) blends filled with various
concentrations of Copper Oxide (CuO) nanofiller (0, 2 and 4wt %) have been prepared using
ultasonicator. The XRD Studies reveals the structural confirmation of the nanocomposite films. It
also indicates the increase in crystallinity of the blend upon addition of nanofillers. The crystallite
size of the pure film is 2nm and that of the nanocomposite films is 33 nm.The direct energy gap
values found by transforming UV visible spectra into Tauc’s plots indicates the declining energy gap
of the nanocomposite films with an increase in CuO nanofiller concentration.The surface
morphology studies carried out using atomic force microscope (AFM) indicates an increase in
surface roughness of the films upon addition of CuO nanofillers in the blend.The photoluminescence
spectra measured at an excitation wavelength of 220nm reveals that the intensity of the spectra
increases with filler concentration. The mechanical properties studied using Universal testing
machine (UTM) indicates an increase in Young’s modulus of the films with an increase in CuO
nanofiller. There is a significant enhancement in the optical and mechanical properties of the blend
upon the addition of CuO nanofillers. These improvements in the properties of the blend with the
addition of CuO nanofillers make it a potential material for device applications.
Keywords: PVA/PVP blend; nanofiller; optical properties; mechanical properties
Acknowledgements
We thank Dr. Sangappa Y, Professor, Department of Physics, Mangalore University for extending
UTM facility.
ICMM-2019 275 Book of Abstracts
ICMM:515 | Synthesis and Characterization of Donor-Acceptor-Donor Type
Polymer for NLO Applications
*K. Balakrishnaa, R. Sampatha, T. Vishwama, M. P. Joshib, S. Raj Mohanb aDepartment of Chemistry and Physics, GITAM (Deemed to be University),
Hyderabad- 502329, India b Laser Materials Processing Division, Raja Ramanna Centre for Advanced Technology,
Indore-452013, India
Abstract
In material science for different applications purpose research and development wise various
materials tried starting from small to big molecules which includes inorganic as well as organic
polymers. Especially some of the thrusting areas like non-linear optics (NLO), light emitting diode
(LED), liquid crystal display (LCD), field effect transistors (FET) and solar cell are still under
demand for various applications like optical communication, optical data storage, energy harvesting
etc.To fulfil the demand various novel polymeric materials based on polyamide, poly(methyl
methacrylate), polyimide and polyurethane etc have been synthesized in especially for NLO and
LCD applications. For NLO and LC materials, having donor and accepter containing moietieswhich
are attached through conjugation to some extent plays important role to achieve the desirable
properties. In the present paper we have synthesized donor-acceptor-donor based NLO polymer
containing carbazoles by using Knoevenagel condensation reaction. The polymer is found to be fully
soluble in high polar solvents like dimethyl formamide and dimethylsulphoxide. By using GPC and
tetrahydrofuran as a solvent, the molecular weight is found to be 5000 g/mol. Thermal analysis
exhibited thermal stability of the polymer up to 400oC and glass transition temperature (Tg) at 214
oC.
The non-centrosymmetry in the film was induced by corona poling for second order NLO property
Computational study indicated that the total charge is located at the centre of the molecule in HUMO
case whereas in the case of LUMO the charge is spreads out from the centre of the molecule.
Keywords:Nonlinear optics,Carbazole, Thermal analysis, Poling,Computational study.
ICMM-2019 276 Book of Abstracts
ICMM:518 | Advancement in Structural, Morphological and Dielectric
Studies of PVA filled TiO2 and ZnO nanocomposites
Vincent Crasta1*, B Gananatha Shetty1, Rajesh K1, 1Department of Physics, St Joseph Engineering College, Mangaluru, Karnataka-575028, India
*Corresponding author. Mobile: (+91) 94482 53901; E-mail:[email protected]
Abstract
In this article, we report advancement in structural, morphological and dielectric studies of
PVA encapsulated titanium dioxide (TiO2) and zinc oxide (ZnO) nanoparticles.PVA/(x)TiO2(15-
x)ZnO nanocomposites were prepared using solvent casting ex-situ technique for x = 0wt%, 1wt%,
5wt%, 7.5wt%, 10wt%, 14wt% and 15wt% filling concentrations. FTIR spectroscopy reveals the
formulation of complexes between the PVA main chain and nanofillers and is due to inter or intra
molecular hydrogen bonding. The AFM picture shows the uniform grain structure for pure PVA and
changes in surface morphology for prepared PVA nanocomposites. The morphological and
homogeneous distribution of nanofillers in PVA nanocomposites was observed using SEM. AC
conductivity studies of the films spectacles the variation of conductivity for different filling
concentrations with increase in frequency. The frequency dependent dielectric constantdecreases
with an increase in frequency.
Keywords:PVAnanocomposites; nanofillers;ac conductivity; dielectric studies
ICMM-2019 277 Book of Abstracts
ICMM:519 | Effect of Microcrystalline Cellulose Reinforcement in DOP
Plasticized Melt-spun PHB Fibers
Moumita Mistri1, 2*, Pavan Manvi3, Bernd Michael Liebeck4 Thomas
Gries3, and Bhanu Bhusan Khatua2 1Materials Science Programme, Indian Institute of Technology Kanpur, Kanpur, 208016,
India 2Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur,
721302, India 3Institut für Textiltechnik der RWTH Aachen, Aachen, 52074, Germany
4Institut für Kristallographie der RWTH Aachen, Aachen, 52066, Germany
*Corresponding author. Mobile: (+91) 7318020350; E-mail: [email protected]
Abstract
Poly[3-hydroxybutyrate] (PHB) having properties similar to conventional thermoplasticsand
microbial biodegradability under both aerobic and anaerobic conditions, however,finds difficulty in
large scale processability owing to poor mechanical performance. Melt-spun PHB fibers plasticized
with 5 wt% dioctyl phthalate (DOP) are reinforced with microcrystalline cellulose (MCC) by using a
twin-screw extruder to aid high crystallinity.DOP/MCC reinforced fibers have resulted in diminished
stickiness in physical appearance compared to that of neat PHB fiber, and uniform distribution of
additives, as revealed by cross-sectional and longitudinal SEM micrographs. Marginal changes in
Tonset (<1) and % residue at 600 C in TGA curves indicate no significant thermal stabilization with
only 5wt% DOP addition. Shift in the crystallization enthalpy (Hc) in DSC from 48.08 Jg-1
to 50.42
Jg-1
upon 5wt% DOP addition suggest less crystallization probability of the amorphous phase during
cooling. Furthermore, 5wt% MCC marginally alter the crystallization half-life time (t0.5) compared to
PHB-5wt%DOP, suggesting that MCC does not promote the crystallization, hence failed to serve as
a good nucleating agent for PHB. Almost no shift in PHB C=O stretching frequency(1719 cm-1
) in
ATR-FTIR spectra with/without DOP/MCC reinforcement is accounted. The 2D intensity difference
in WAXD ring pattern along the azimuthal direction of reinforced fibres with MCC characteristic
peaks 2θ (MoKα1, 2) = 7.2° and 10.4° overlapping with PHB (020) and (110) peaks at 2θ (MoKα1,
2) = 6° and 7.5° respectively; proposes its poor alignment during spinning and hence unchanged
%crystallinity. In conclusion, achieving a decreased and convenient processing temperature regime
for PHB fiber by incorporating only 5wt% DOP and MCC using melt-spinning have not led to
desired mechanical performance; perhaps feasible at higher % loading.
Keywords:Poly[3-hydroxybutyrate] (PHB), Dioctyl phthalate (DOP), Microcrystalline cellulose
(MCC), Melt-spinning, Thermal study.
ICMM-2019 278 Book of Abstracts
ICMM:520 | Annealing Effect on Magneto-Transport Property and Stress
Induced Dynamic Elastic Moduli on a Co-Ni-Al FSMA
B. Rajini Kanth1,2*, Md Sarowar Hossain2, and P. K. Mukhopadhyay2 1LSMS, T. K. R. College Engineering and Technology, Hyderabad 500097, India
2LCMP, S. N. Bose National Centre for Basic Sciences, JD Block, Salt Lake 700 098, India
*Corresponding author. Mobile: (+91) 7893092879; E-mail:[email protected]
Abstract
Ferromagnetic Shapememory Alloys offers prospects for novel applications that make use of
new mechanism for converting between magnetic and mechanical energies,due to the unique
combination of large displacements and fast mechanical response. Structural transformation varies
between Austenite and Martensitic phase. These structural transformation temperatures are sensitive
to the preparation parameters and conditions. We have prepared a sample of Co-Ni-Al alloy system
(Co40Ni33Al27) by arc melting and annealed at 1373K/24h and 1473K/72h. The sample was
characterized by XRD, resistivity, & magnetization. Interestingly annealing temperature and stress
affects on magneto transport and elastic properties respectively1. TM has increased due to annealing.
Austenite to Martensite phase transformation shifts to above room temperature for annealing at
1473K/72h and hence we can largely control the shape memory effect of this alloy by annealing2.
Room temperature resistivities are increased by a factor of 3 due to higher temperature annealing
prolonged annealing brought in more disorder in the system and affected the electronic transport
properties. The elastic behavior of the sample annealed at 1373K/24h, in presence of stress of 7.42
MPa the transition temperature is lower than the temperatures found in magnetization and resistivity
measurement.
Keywords:Sound velocity 1; Internal Friction 2; Ferromagnetic Shape Memory Alloy 3.
Acknowledgements
BRK acknowledges the support extended by DST videproject grant no. SR/FTP/PS-108/2009
and the Directors of S. N. Bose Center and T.K.R. College of Engineering and Technology for
allowing the collaboration work. Dr. S. Pandianand J. Arout Chelvane are acknowledged for the help
extended in making the samples, SH thanks TWAS – Bose fellowship.
ICMM-2019 279 Book of Abstracts
ICMM:521 | Rheological Studies on Homogeneous and Inhomogeneous Core
Dense Colloidal PNIPAM Microgels
M.V. Saisavadas1, R.G. Joshi2, M. Praveen Kumar1, Surajit Dhara1,
B.V.R.Tata1* 1School of Physics, University of Hyderabad, Hyderabad, 500 046, India
2Condensed Matter Physics Division, Materials Science Group, Indira Gandhi Centre
for Atomic Research, Kalpakkam , 603 102, India
*B.V.R.Tata. Mobile: (+91) 9444463933; E-mail:[email protected]
Abstract
Aqueous suspensions of thermo responsive poly (N-isopropyl acrylamide) (PNIPAM)
microgel particles exhibit volume phase transition (VPT) around 34oC. PNIPAM microgel spheres
are known to have a dense core with in a fuzzy shell of dangling polymer chains. Recently (Joshi and
TataColloid Polym.Sci. 295, 1679 (2017)) it was shown that under dense conditions i.e. volume
fraction,> 0.64 PNIPAM microgel suspensions exhibit glassy state and undergo two step yielding
(two peaksin viscous modulus G”(ω))upon application of shear. Two-step yielding reflecting the
breaking of entanglements of dangling polymer chains between shells of microgels and breaking of
the near neighbour cages respectively. Two-step yielding in dense microgels is unusual. Motivated
by these studies and with an aim to understand better the role of entanglements on the yielding
behaviour in the glassy state, we synthesized homogenous core (referred to as HC-PNIPAM
microgels)by feeding the monomer solution into the reaction mixture in a regulated way during the
polymerizationand core-shell type (referred to as CS-PNIPAM microgels)by conventional
polymerization method. Here we report the results obtained from non-linear rheology on dense
suspensions of HC and CS type PNIPAM microgel spheres. At temperature slightly below the room
temperature the dense PNIPAM microgels are found to be in glassy state .We observed two step
yielding in dense CS PNIPAM microgels suspension in their glassy state. Whereas dense suspension
of HC-PNIPAM spheres showed single step yielding.These observations clearly suggest that the
entanglement between the shells of the neighbouring CS-PNIPAM microgel particles are responsible
for two step-yielding in colloidal microgel glass.We identify the glass transition temperature in our
samples from rheology. Non-linear rheological measurements carried out as a function of
temperature in the glassy state are being analysed.
Keywords:Poly(N-isopropylacrylamide); Thermo-Responsive; Microgels, Non-linear rheology;
Volume Phase Transition.
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ICMM-2019 280 Book of Abstracts
ICMM:522 | Studies on Electrospraying Synthesis and mechanism of sol-gel
Derived TiO2-ZrO2-Poly vinylpyrrolidone Composites as Bactericidal Self-
cleaning Coatings
Sanu Mathew Simon1, Prakashan V P1, Gejo George1,2, Anoop Chandran3,
Sajna M S1,4, Saritha A C1, Biju P R1, Cyriac Joseph1, Unnikrishnan N V1* 1School of Pure & Applied Physics, Mahatma Gandhi University, Kottayam - 686 560,
India 2Division of Materials Science, Department of Engineering Sciences and Mathematics,
Luleå University of Technology, SE-971 87, Luleå, Sweden 3Department of Physics, St. Cyril’s College, Adoor
4Department of Optoelectronics, University of Kerala, Thiruvananthapuram-695 581, India
*Unnikrishnan N V (+91) 9745047850; E-mail: [email protected]
Abstract
The blending of inorganic nanomaterials possessing high surface area with polymer systems
to form hybrid materials isa promising category with abundant budding applications due to
itsexceptional mechanical, thermal and chemical stability. Herein, TiO2-Poly vinylpyrrolidone and
TiO2-ZrO2-Poly vinylpyrrolidone composites synthesized using sol-gel method and are allowed for
electrosprayingtechnique on aluminum foil and glass plates to get uniform film. FTIR spectroscopy
and ElementalMapping together confirm the constituents of the composite. FESEM and AFM
revealed smoothness nature ofthe film. Contact angle measurements were carried out to assess self
cleaning natureof the film. Antibacterial activity and oleophobic nature of the surface were
alsostudied. The addition of ZrO2 prevents electron-hole recombination and enhancesphotocatalytic
nature of the film. These works conclude that synthesized TiO2-ZrO2-PVP composite film shows
excellent photoinduced self cleaning nature with betterantibacterial activity.
Keywords:Self cleaning; Antibacterial; Electrospraying
Acknowledgements
The present work was supported by DST-PURSE PII (SR. 417 & SR. 416 dated 27-2-2017).
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ICMM-2019 281 Book of Abstracts
ICMM:529 | Finite Element Analysis on Fly Wheel Cup Manufactured with
Polymer Matrix Composite (PMC) Reinforced with Fly Ash
*J Nithin Kumar, K. Praveen Kumar, G Ravi Shankar, P Chucharita Department of Mechanical Engineering, Geethanjali College of Engineering & Technology,
Cheeryal (V), Keesara (M), Medchal Dist. 501301, Telangana, INDIA.
*Corresponding author. Mobile: (+91) 9959593836; E-mail: [email protected]
Abstract
In this paper, a polymer matrix composite (PMC) which is widely used in Aerospace,
automobile and other engineering applications, which is reinforced with fly ash is taken in different
weight ratios for manufacturing of Fly wheel cup.
The principle target of this paper is to determine the behavior of fly wheel cup which is
manufactured by deep drawing process using polymer matrix composite (PMC). In order to find the
behavior of finite element analysis technique is used to find the deformation and von-mises stress.
Deformation of Fly Wheel Cup was found in the range of 0.0017 m – 0.008 m, and the level of
equivalent elastic strain was found in the range 0.0087 – 0.04. And compared the results with Mild
Steel, which is presently in use.
Keywords: Fly Wheel Cup, PMC, Fly Ash, FEA.
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ICMM-2019 282 Book of Abstracts
ICMM:531 | NiO/Polyaniline Nanocomposite in View of Energy Storage and
Electrochemical H2O2 Sensing Application
Saraswathi Kailasa1, M. Sai Bhargava Reddy B. Geeta Rani1, Shubham
Sharma2, K. Venkateswara Rao*1
1CNST, IST, JNTU, Hyderabad, Telangana State, 500085, India
2CSIR-CLRI, Regional Centre for Extension and Development, India
*Corresponding author. Mobile: (+91) 9440858664 E-mail: [email protected]
Abstract
Now a days metal oxide-polymer nanocomposites attracting as a hybrid electrode for
electrochemical sensor and energy storage (supercapacitors and battery) application. This paper
reports the simple in-situ polymerization of NiO/Polyaniline nanocomposite for supercapacitor and
H2O2 sensing application. Polyaniline is one of the most studies conductive polymer in energy and
sensor applications. The as synthesised NiO/Polyaniline composite was confirmed by XRD,
functional groups were performed by FTIR and morphological were studied by FESEM and TEM.
The obtained NiO/Polyaniline was coated on nickel foam and used as modified electrode, was
studied by cyclic voltammetry, amperometry, galavanostatic charge and discharge, FRA to find out
its potential for H2O2 sensing and energy storage. It was found that the fabricated hybrid
NiO/Polyaniline electrode showed better performance
Keywords:in-situ polymerization; H2O2 sensing; Cyclic Voltammetry; nickel foam; FESEM
ICMM-2019 283 Book of Abstracts
ICMM:538 | Laser Applications for the Optical Exploration of the Dy3+ Doped
Li2O-CaF2-Al2O3- B2O3- SiO2 Glasses
D. Deenabandhu1,K. Neeraja2, K. Ephraim Babu2*, , V. Venkata Kumar3, K. Bueala
Kumari3, K. Samatha4 and V. Veeraiah4
1Department of Physics Dr. L. B College of Engineering for Women Visakhapatnam. A.P.
2Department of Physics, Narasaraopeta Engineering College (A) ,Narasarao pet,Yellamanda (P.O)
Guntur(D.T) Andhra Pradesh, 522601, India. 3Department of BS&H, St. Ann’s College of Engineering & Technology, Nayunipalli village, ChallaReddy
Palem Post, Vetapalem Mandal, Chirala, Prakasam District, AP - 523187, India 4Department of Physics, Andhra University,Visakhapatnam, Andhra Pradesh, 530003, India.
*Corresponding author. Mobile: (+91) 9849619867; E-mail: [email protected]
Abstract
This paper provides details regarding the preparation, optical absorption, emission and FTIR
spectral studies on Dy3+
doped Li2O-CaF2-Al2O3- B2O3- SiO2 glasses. Absorption spectrum reveals
different bands and it analyzed by the use of JO-theory. Emission spectra of the samples display two
transitions 4F9/2→
6H15/2,
4F9/2→
6H13/2, a clear enhancement is observed with increase the
concentration of Dy2O3 ions. The CIE coordinates is measured for these glasses it demonstrates that
the glasses produce bright white light, which are appropriate for the improvement of the laser
materials and white light LED's.
Keywords:Optical absorption, emission, JO-theory, FTIR
ICMM-2019 284 Book of Abstracts
ICMM:539 | Iso-conversional Kinetics Study of Xanthan Gum Bio Polymer
A.M.Shaker11, T.Lilly Shanker Rao2**, T.Shanker Rao3, K.Venkataraman4 1Physics Department, K.J.Somaiya College of Science &Commerce,Vidyavihar, Mumbai, 400077,India.
2Electronics Department, Narmada College of Science&Commerce, Bharuch,392011,India.
3Physics Department, Narmada College of Science and Commerce,
Bharuch,392011,India 4Physics Department, PMB Gujarati College,Indore ,452001,India
**+91 9427931353; [email protected]
Abstract
The Crystallization process of Xanthan Gum Bio Polymer is studied by Differential Scanning
Calorimetry (DSC) at different heating rates (2,4,6,8 and 10 K/min) under non isothermal
conditions. Four iso-conversional (Flynn-Wall-Ozawa, Tang, Straink ,Kissinger-Akahira-Sunose and
Ortega)approaches are utilized to determine the activation energy of crystallization (Ec) and Avrami
exponent (nα ) . The transformation of amorphous phase to crystalline form is discussed.
Keywords:Non-isothermal method;Iso-conversional; Crystallization kinetics; Biopolymer;
Activation energy.
Acknowledgements We thank Central Salt and Marine Chemical Research Institute (CSMCRI), Bhavnagar,
Gujarat 364002, India for helping DSC experimental work.
ICMM-2019 285 Book of Abstracts
ICMM:545 | Studies on Mass Attenuation Coefficient, Effective Atomic
Number and Electron Density of Some Biomolecules in the Energy Range
0.122 To 1.330 Mev
Khan Faizan*, Shaikh Junaid, Farha Naaz, Aqsa Samreen, Shaikh Saima Anam,
Shaikh Zeba Anjum, Pravina P.Pawar.
Dr. Babasaheb Ambedkar Marathwada University, Aurangabad.
Mobile: (+91) 8485803926; E-mail:[email protected]
Abstract
The Mass Attenuation co-efficient (/r) of certain biomolecules precisely carbohydrates
formed by C, H and O are studied. It is calculated by using gamma ray photons varying in the energy
range 122-1330 KeV. Further some derived values such as linear attenuation coefficient (m),
effective atomic number (Zeff), effective electron density (Neff), total cross sectional area (total),
mean free path(X), Molar extinction co-efficient (). The specimens studied are Stachyose
(C24H42O21), Sedoheptose (C7H14O7), Threose (C4H8O4), Glyceraldehyde (C3H6O3), Adonitol
(C5H12O5), Formaldehyde (C1H2O1). The results so obtained are represented graphically.
Keywords:Mass attenuation coefficient (r), effective atomic number (Zeff), effective electron
density (Neff), total cross sectional area (total), mean free path(X), Molar extinction co-efficient().
Acknowledgements:
The authors extend their sincere thanks to UGC-SAP Programme (F.530/16/DRS-I/2016 (SAP-2) Dt.
16-04-2016) and DST-FIST (Project NO. SR/FST/PSI-210/2016 (C) dtd.16/12/2016) for providing
financial support.
ICMM-2019 286 Book of Abstracts
ICMM:603 | ТiО2/Activated Carbon Composites: Synthesis, Structure and
Adsorption Properties
Anzhela Kukh*, Iryna Ivanenko Department of Inorganic Substances Technology, Water Treatment and General Chemical
Engineering
National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute",
4 building, 37 Pеremohy ave., 03056, Kyiv, Ukraine
*Corresponding author. Mobile: (+380) 677952888; E-mail: [email protected]
Abstract
Adsorption is an integral stage of any heterogeneous catalytic process. The efficiency of it
relies on the high adsorption activity and the necessary structural and adsorption characteristics of
catalysts [1,2]. This goal has been achieved in the present work by immobilization of titanium oxide
on the surface of activated carbon. A series of composites of TiO2/activated carbon has been
synthesized by a modified sol-gel method. This series included five composites. The four composites
were obtained by low temperature hydrolysis, three of which were doped with fluorine in various
ratios [3]. The fifth composite was synthesized by direct precipitation [4]. The surface morphology of
composites and the size of immobilized particles of TiO2 were studied by SEM. The phase
composition was established by XRD. The low-temperature adsorption-desorption of nitrogen were
investigated to calculate the main structural-adsorption characteristics. The adsorption activity of the
composites has been studied toward glucose, phenol, cationic and anionic dyes. A significant
increase of the adsorption capacity of all synthesized composites compared to the initial activated
carbon has been found, despite its inner surface and porosity decreases due to modification. The
observed increase of the adsorption activity is due to the fact; that adsorption on TiO2/activated
carbon composites is accompanied by the simultaneous catalytic decomposition of adsorbed
substances at the surface active centers, which are TiO2 particles.
Keywords: adsorption, activated carbon, titanium (IV) oxide, composite
Reference 1. L. Wang, X. Wang, J. Cheng, P. Ning, Y. Lin, Appl. Surf. Scie., 439, 213-221, 2018.
2. E. Pakdel, W.A. Daoud, S. Seyedin, J. Wang, J.M. Razal, L. Sun, X. Wang, Coll. Surf. A:
Physicochem. Engin. Asp., 552, 130-141, 2018.
3. I.N. Ivanenko, T.A. Dontsova, I.M. Astrelin, V.V. Trots, J. Water Chem. Technol., 37(1), 14-20,
2016.
4. T. Dontsova, I. Ivanenko, I. Astrelin, Nanoplasmonics, nano-optics, nanocomposites, and
surface studies: Springer Proceedings in Physics, 167, 275-293, 2015.
ICMM-2019 287 Book of Abstracts
ICMM:608 | Room Temperature Ammonia Gas Sensing Properties of Nickel
Oxide Thin Films
K. GangaReddy*, M.V.Ramana Reddy
Thin films and Nanomaterials Research Laboratory, Department of Physics, Osmania
University, Hyderabad, 500007, India
*Corresponding author. Mobile: (+91) 7893667879; E-mail: [email protected]
Abstract
In this work, nickel oxide thin films were successfully deposited with simple and low-cost
sol-gel spin coating method. The prepared samples were annealed at 250⁰C and structural and optical
properties were studied using XRD, SEM, EDAX and UV-visible spectrophotometer. XRD pattern
revealed that all the prepared samples are in cubic structure and well-matched with JCPDS. From
SEM,It is observed that all the films are uniform and highly adhesive. Transmittance spectra is
indicating the prepared samples are highly transparent, and the energy band gap was calculated from
absorption spectra. These prepared samples were tested using static gas sensing set up to detect
different reducing analyte gases including ammonia towards various ppm at room temperature.
Ammonia was found to be good selective and sensitive, and response and recovery time of the sensor
were calculated and reported.
Keywords: thin film; ammonia gas sensor; response; selectivity; sensitivity
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ICMM-2019 288 Book of Abstracts
ICMM:616 | Structural Characterization of Layered Tin Mono-selenide
Crystals Doped with Copper Grown by DVT Technique
S. M. Bharthaniya1, K. R. Chaudhari2, Ajay M. Agarwal3*,G. K. Solanki4 1Dept. of Physics, M. R. Arts & Science College, Veer Narmad South Gujarat University,
RAJPIPLA, 393145, India 2Dept. of Electronics,
3*Dept.of Physics, Shree Jayendrapuri Arts & Science College, Veer
Narmad South Gujarat University, BHARUCH, 392001, India 4Dept.of Physics, Sardar Patel University, VALLABH VIDYANAGAR, 388120, India
*Corresponding author. Mobile: (+91) 9638185127; E-mail:[email protected],[email protected]
Abstract
In the last two decades there has been a lot of interest in the development of alternative renewable
energy sources [1]. Particularly thermoelectric materials have witnessed a renewed interest since
thermoelectric effect can be used to convert thermal energy into electrical energy; they provide an alternative
for power generation from waste heat and also can be used for refrigeration. The efficiency of thermoelectric
materials is given by the dimensionless figure of merit (ZT) defined as T
SZT
2 Where S,,& T are the
Seebeck coefficient, electrical conductivity, thermal conductivity and absolute temperature respectively.
Therefore excellent thermoelectric performance require a high power factor as well as low thermal
conductivity.
Since the initial observation of high thermoelectric performance in SnSe in 2014 in the temperature
range 723-923 K[2], there have been a large number of research papers on SnSe samples[3]. Favourable
thermoelectric properties in SnSe are not limited to higher temperature phase but can also be obtained in low
temperature phase by suitable doping. Now doping in SnSe can be done either at cation site or anion site.
Singh et al[4] tried Al, Cu, Pb and In as dopants at Sn site and synthesized Sn(1-x)MxSe in the polycrystalline
form. Their study showed that Cu doped SnSe alloys resulted in enhancement of ZT and could work as a
potential and cost effective TE material. Since it has been seen that SnSe in single crystal form gives a better
thermoelectric performance[5], it was thought worthwhile to grow Cu doped SnSe in single crystalline form.
The SnSe crystals doped with copper were grown by DVT-Direct Vapour Transport technique having no
transporting agent. The present paper describes a complete structural characterization of the as grown samples.
For structural analysis, X-ray diffraction data of pure and Cu doped SnSe samples have been recorded using
Phillips Xpert MPD, Holland in the 2 range of 25 to 63 with scanning speed of 3 per minute employing
CuK radiation with =1.5405 A. All the X-ray peaks have been indexed and it is seen that the grown
crystals possess an orthorhombic crystallographic phase. The lattice parameters have been calculated using the
relation 2
2
2
2
2
2
2
1
c
l
b
k
a
h
d
The calculated values match with the values reported in the literature. The unit cell
volume has been evaluated using V = abc. Parameters such as crystallite size D, lattice strain and dislocation
density have been determined with the following formula
2cos
kt
,
tan4
2 and t
15
Where β2 is the
integral half width, k is a constant equal to 0.90, is wavelength of incident X-rays(0.1540 nm), is Bragg
angle.
The elemental analysis for chemical stoichemetry has been done with the help of EDAX spectra. The
spectra clearly show the presence of all the elements in nearly stoichiometric proportion. The X-ray diffraction
analysis is directly supported by electron diffraction patterns taken from the as grown samples. Scanning
Electron Microscopy has been used to study the growth mechanism which is responsible for the growth of
grown samples of SnSe and SnSeCu. The implications of all the results have been thoroughly discussed.
Keywords: Structural Characterization; DVT; EDAX; XRD; SEM.
Acknowledgements Authors are hearty grateful to Head, Dept. of physics, Sardar Patel University, V.V. Nagar for providing the
necessary research facilities.
ICMM-2019 289 Book of Abstracts
ICMM:620 | The Effct of Polygonal Pin Profiles on Temperature Profile of
Friction Stir Welded Thick Dissimiar Materials
M.Mounika1, R.Venkateswara Rao2* Y. Anuradha2, Dr. G. Amarender Rao3 1P G student, VBIT, Hyderabad, 501301, INDIA
2Asst Prof, VBIT, Hyderabad, 501301, INDIA
3Prof & Principal, VBIT, Hyderabad, 501301, INDIA
*Corresponding author. Mobile: (+91) 9014582380; E-mail:[email protected]
Abstract
In friction stir welding (FSW), the temperature distribution between weld surfaces depends
upon the geometry of pin profile. The main aim of this study is to experimentally investigate the
temperature distribution between AA2014/AA6061 Al-alloys weldments fabricated with polygonal
pin profiles. The process parameters such as tool rotational speed (710,900 and 1120 rpm), feed rate
(20.315 and 40 mm/min) and polygonal pin profiles (T, S and P) were considered and they are
ordered as per L9 orthogonal array. The temperature measurement during the process was carried
with an infrared thermometer instead of thermocouples in order to measure the accurate temperature
generated in nugget zone. Experimentally it was observed that the temperature on advancing side is
higher as compared to retreating side which observed between 200-2500 C.
Keywords: friction stir welding; temperature profile; polygonal pin profiles; dissimilar materials.
Acknowledgements
The author is grateful to the University Grants Commission, Delhi for the financial support through a
R&D project (MRP-7019/16(SERO/UGC)). The author wishes to acknowledge the help rendered by
Dr. Gopa Dutta, Director R&D and Management of Vignana Bharathi Institute of Technology,
Ghatkesar, Hyderabad to carry out this work.
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ICMM-2019 290 Book of Abstracts
ICMM:624 | Simple, Rapid and Solvent Free Synthesis of β – Nitrostyrenes
from α, β-Unsaturated Carboxylic Acids In Presence of Poly Ethylene Glycol
Supported Metal Nitrates
K. Ramesh1 1Assistant Professor, Department of Chemistry, Chaitanya Bharathi Institute of Technology (A),
Gandipet, Hyderabad-500075, India
*Corresponding author. Mobile: (+91) 9849116946;E-mail:[email protected]
Abstract
During the past two to three decades, there has been green revolution in the field of chemical
research all over the world to prevent environmental pollution and the use of nonvolatile solvents,
which are essential ingredients in a large number of organic synthesis protocols. More specifically
removal of organic solvents in chemical synthesis is important in the drive towards benign chemical
technologies. Encouraged by these results, Polyethylene glycols (PEGs) have been applied here as
efficient additives in these reactions under solvent free conditions. Poly ethylene glycol (PEG)
supported Hunsdiecker–Borodin reactions were conducted with certain α, β-unsaturated acids in the
presence of metal nitrates such as ferric nitrate and manganese nitrate under solvent free (solid state)
and mineral acid free conditions. The reactants were ground in a mortar with a pestle for about 30
minutes. The aromatic acids underwent nitro decarboxylation and afforded β-nitro styrene derivatives
in very good yield while α, β-unsaturated aliphatic carboxylic acids gave corresponding nitro
derivatives. Addition of PEG accelerated rate of the reaction enormously. Reaction times
substantially decreased from several hours to few minutes followed by highly significant increase in
the product yield. Among the several PEGs used in this protocol, PEG-400 has been found to be
more effective than other PEGs.
Keywords: Metal Nitrate, Poly ethylene glycols, Hunsdiecker –Borodin reaction, α, β-unsaturated
carboxylic acids.
ICMM-2019 291 Book of Abstracts
ICMM:627 | Study of Transport and Magnetoelectric Properties of BiFeO3
Thin Films
Pratheek1, B G Hegde1* and N H Ayachit2
1Department of Physics, Rani Channamma University, Belagavi – 591 156, Karnataka,
India 2Centre for Material Science, KLE Technological University, Hubballi – 580 031
Karnataka, India
*Corresponding author. Mobile: (+91) 08277336421; E-mail: [email protected]
Abstract
Materials that have coupled electric, magnetic, and structural order parameters that result in
simultaneous ferroelectricity, ferromagnetism, and ferroelasticity are known as multiferroics (1, 2).
In recent times, due to their potential applications in information storage, spintronics and sensors,
these materials gained considerable attention of scientific community. In multiferroic materials due
to strong magnetoelectric coupling both the magnetization and the polarization can be manipulated
by electric as well as magnetic fields. Compared to other multiferroic materials bismuth ferrite,
BiFeO3, exhibits both ferroelectricity and antiferromagnetism at room temperature [3], enabling the
construction of new multifunctional devices. It has a rhombohedrally distorted perovskite structure of
space group R3c with high Neel Tn = 643 K and ferroelectric ordering Tc = 1103 K temperatures [4].
As there are evidence that the multiferroic property of BiFeO3enhances in thin films, an attempt is
made to study its property in thin film form.
BiFeO3 in powder form was prepared by combustion method using precursors Bismuth
nitrate (Bi(NO3)3, 5H2O), ferric nitrate (Fe(NO3)3, 9H2O) diluted nitric acid HNO3, glycine C2H5NO2
and urea CH4N2O [5]. The powder obtained was characterised by XRD. Thin films were prepared by
RF- C sputtering method and its transport and magnetoelectric properties are studied.
Keywords:Multiferroic Thin films, magnetoelectric properties BiFeO3, RF DC sputtering.
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ICMM-2019 292 Book of Abstracts
ICMM:631 | Effect of V2O5 on the Properties of Lithium Bismuth Borate
Glasses
V. D. Raut1, A.V. Deshpande2 *, N. S. Satpute3* 1G.H.Raisoni College of Engineering,Nagpur 440016(India)
2Visvesvaraya National Institute of Technology, Nagpur, 440010(India)
3Dharampeth M. P. Deo Memorial Science College, Nagpur 440033(India)
*V. D. Raut. Mobile: (+91) 9423684604; E-mail: [email protected]
Abstract
The series of the glasses with general formula(40-x)Li2O:30B2O3:30Bi2O3:xV2O5,with x = 0,
0.5, 1.0, 1.5 and 2.0 mol% was prepared using conventional quenching technique. The glass
transition temperature Tg for these samples were determined from Differential Thermal Analysis.
The glass transition temperature increases beyond 0.5 mol%. It was found that the glasses under
study consist of randomly connected BO3& BO4 structural units. The density and molar volume of
glasses were found to depend on V2O5 content.Initially the density increases, molar volume and glass
transition temperature decrease with the addition of V2O5. This suggests that when V2O5 is added to
the glass initially up to 0.5 mol% it may be entering as a modifier. Beyond 0.5 mol% density
decreases and molar volume increases as V2O5 goes as former. This reveals the role of V2O5 as a
glass network former beyond 0.5 mol%. Optical band gap energy decreases and cut off wavelength
increases with increase in V2O5 content.
Keywords:Molar volume; Glass transition temperature; Oxygen packing density, Cut-off wavelength,
Optical band gap.
Acknowledgements
One of the authors wishes to express sincere thanks to Dr. V. K. Deshpande for providing research
facilities at V. N. I. T., Nagpur.
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ICMM-2019 293 Book of Abstracts
ICMM:633 | Utilization of Spray Coated Nano-crystalline Cadmium Sulfide
Thin Film for Photo-Detector Application
Devidas I. Halge1, Pooja M. Khanzode1, Vijaykiran N. Narwade1, Sumayya
Begum1, Shivaji G. Munde1,2, Kiran D. More1, Janez Kovac3, Jagdish W. Dadge4,
Abhimanyu S. Rana5 and Kashinath A. Bogle1,* 1Thin Films and Devices Laboratory, School of Physical Sciences, Swami
RamanandTeerthMarathwada University, Nanded – 431606 INDIA 2Late ShankarraoGutte Arts, Commerce, Science Gramin College, Dharmapuri, Taluka Parali, District
Beed—431515 INDIA 3Department of Surface Engineering and Optoelectronics (F4),Jozef Stefan Institute, Ljubljana, SLOVENIA
4Department of Physics, College of Engineering, Pune-411005 INDIA
5Center for Advanced Materials and Devices, School of Engineering & Technology, BML Munjal University,
Gurgaon 122413 INDIA
*Corresponding author. Mobile: (+91) 7350845827; E-mail:[email protected]
Abstract
In this work, we report fabrication of high quality visible light photo-detector based on
uniform nano-crystalline cadmium sulfide (CdS) thin film deposited on glass substrate using spray
pyrolysis technique. Structural, morphological and chemical analysis of the film confirms nano-
crystalline nature of CdS thin film with ~ 30 nm crystallites and uniform coating of CdS on glass.
Finger electrodes were made on the film using Ag paste. Photo-detection property of nano-crystalline
CdS thin films was tested under visible light illumination. For photo-detection, the response of
incident light in terms of photo-current was monitored when exposed to different wavelengths
ranging from 420 to 700 nm. The fabricated device showed significant photo-detection at lower
operating voltage (2 V) for low power (< 10 mWcm−2
) light. Time response measurements at
different wavelength show ultra-fast response and decay time and high photo sensitivity at low bias
voltage.
Keywords:Nano-crystalline; CdS; spray coating; photo-detector, ultra fast response and decay time
ICMM-2019 294 Book of Abstracts
ICMM:635 | Efficient H2 Production by H2S Splitting Using CNT Blended Ce
Doped TiO2 Thin Film Photocatalyst on Perspex Substrate
M. Anthony Raja1, Preethi V1*, Yash Pal1, Naresh Nalajala2, Chinnakonda S.
Gopinath2 1Hindustan Institute of Technology and Science, Chennai, 603 103, India
2CSIR-National Chemical Laboratory, Pune, 411 008, India
*Corresponding author. Mobile: (+91) 9840314161; E-mail:[email protected]
Abstract
Thin film materials are the key elements of photonic, electrical and magnetic devices. Using
the thin film produced from powder material allows easy incorporation for various applications as
because the change in properties of materials and size reduction. A co-precipitation method was used
to prepare the CNT blended Ce doped TiO2 photocatalyst. Thin film of CNT blended Ce-TiO2over a
perspex substrate was prepared using a simple drop-casting method. The structural analysis was
carried out using X-ray diffraction (XRD). The elemental and optical analysis was carried out using
energy-dispersive X-ray spectroscopy (EDAX) and Photoluminescence (PL) studies respectively.
The hydrogen production activity was determined form the data obtained from gas chromatograph.
The thin film of CNT blended Ce-TiO2 was prepared using 1 mg of powder form of CNT blended
Ce-TiO2 catalyst which is coated on perspex substrate (1.25 cm x 3.75 cm). Hydrogen production
activity was studied using simulated sulfide solution. The results had shown that the highest
hydrogen production value of 1850 µmol h-1
g-1
for thin film whereas the same amount of CNT
blended Ce-TiO2 powder showed very less hydrogen production of 83 µmol h-1
g-1
. From the above
results it is inferred that the thin film form outperformed the particulate form in the order of
magnitude. This is because of the increased surface area of thin film materials and less recombination
rate of charge carriers.
Keywords:Co-precipitation method; Gas chromatograph; surface area; thin film materials
Acknowledgements
The authors gratefully acknowledge Hindustan Institute of Technology and Science, Chennai and
CSIR-National Chemical Laboratory, Pune for the laboratory facilities and other research supports.
ICMM-2019 295 Book of Abstracts
ICMM:636 | Photocatalytic Hydrogen Production from H2S Using
Nanostructured CNT Blended CdZnS/Fe2O3 Thin Film on Glass Substrate
M. Anthony Raja1, Preethi V1*, Yash Pal1, Naresh Nalajala2, Chinnakonda S.
Gopinath2 1Hindustan Institute of Technology and Science, Chennai, 603 103, India
2CSIR-National Chemical Laboratory, Pune, 411 008, India
*Corresponding author. Mobile: (+91) 9840314161; E-mail:[email protected]
Abstract
A co-precipitation method was employed to prepare the CNT blended CdZnS/Fe2O3
photocatalyst. Using the powder photocatalyst, the thin film of CNT blended CdZnS/Fe2O3
photocatalyst over a glass substrate was prepared using drop-casting method. The obtained thin film
was characterized by energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD),
Photoluminescence (PL) and solar hydrogen production studies in order to obtain information on
their chemical composition, structural, optical and hydrogen production efficiency. The hydrogen
production activity of catalyst was evaluated using solar simulator and estimated with gas
chromatograph. The results shown that 1 mg of powder form of CNT blended CdZnS/Fe2O3 catalyst
coated over 4.69 cm2glass substrate (thin film) showed the highest hydrogen production value of
3180 µmol h-1
g-1
compared to the results obtained with 1 mg CNT blended CdZnS/Fe2O3 powder of
2510 µmol h-1
g-1
. From the above results, it was concluded that the thin film form outperformed the
particulate form.This is because of the effective charge separation and maximization of surface area
utilization of thin film photocatlayst.
Keywords:Co-precipitation method; drop- casting method; solar hydrogen production
Acknowledgements
The authors gratefully acknowledge Hindustan Institute of Technology and Science, Chennai and
CSIR-National Chemical Laboratory, Pune for the laboratory facilities and other research supports.
ICMM-2019 296 Book of Abstracts
ICMM:721 | Synthesis and Characterization of PbTiO3: Anthracene (C14H10)
Multifunctional Ferrites Using by Solid State Reaction Method
Potharaju Krishna1, DayakarThatikayala2, K.Shanthi1 and C.P. Vardhani1* 1Dept. of Physics, Osmania University,Hyderabad,India.E-mail:[email protected].
2PhD and Postdoc fellow(PDF) ,Hanyang University, South Korea. E-mail:[email protected].
E-mail: [email protected]
Abstract
The composition of Anthracene and Lead Titanate is prepared using Solid State reaction
method.Anthracene is a solid polycyclic aromatic hydrocarbon (PAH) of formula C14H10, consisting of three
fused benzene rings. It is a component of coal tar. Lead (II) titanate is an inorganic compound with the
chemical formula PbTiO3. It is the lead salt of titanic acid. Lead (II) Titanate is a yellow powder that is
insoluble in water. At high temperatures, lead Titanate adopts a cubic perovskite structure. The samples of
Anthracene Lead Titanate composites of suitable mixture ratio are prepared using Solid state reaction
method.TheCrystal structure of the calcined powders and also sintered ceramics were analyzed using XRD(X-
ray diffraction). The microstructure of the sintered ceramics has been investigated by using SEM(scanning
electron microscopy).The dielectric constants were calculated for different mixture ratios and at different
temperaures are reported in this paper. It was observed that an increasein temperature there is a change in the
dielectric constants has also been reported in this paper
Keywords:Anthracene, Lead Titanate, dielectric properties, SEM,XRD,. Solid State Method, Perovskite,
PAH, microstructure.
ICMM-2019 297 Book of Abstracts
ICMM:731 | Induction Motor Desgin Analysis for Electric Vehicle Application
N.V.Bharadwaj1*, Dr.P.Chandrasekhar2,Dr.M.Sivakumar 1Geethanjali College of Enegineering and Technology, Hyderabad, 501301,India
2MGIT, Hyerabad, 500075, India
3Gudlavalleru Engineering College,Gudlavalleru, 521356, India
*Corresponding author. Mobile: (+91) 9492030271; E-mail:[email protected]
Abstract
The design of induction motor for Electric Vehicle application is different from that of
conventional induction motor, which is used in various drive applications. The performance
parameters of an induction motor depend on various design parameters including electrical and
mechanical. In this paper study of various parameters such as core axial length, stator inner diameter
and rotor outer diameter is done. The effect of these parameters on induction motor characteristics is
studied using analytical method. The analysis is done one two different induction motors and their
performance is compared.
Keywords:Electric Vehicle; Induction Motor; Design Parameters.
Acknowledgements I thank Geethanjali college management for the support.
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ICMM-2019 298 Book of Abstracts
ICMM:737 | Design of Polymeric Type Spacer in a Single Phase Gas Insulated
Busduct for Reduction of Electric Field Stress
K.Sushma1, G.V.Nagesh Kumar1*, M.Aruna Bharathi 2and P.V.S.Sobhan3 1Department of EEE, JNTUA College of Engineering Pulivendula, INDIA
2Department of EEE, Geethanjali College of Engineering and Technology, Cheeryal, Keesara, Hyderabad,
Telangana, India 3Department of EEE, VFSTR University, Guntur, INDIA
*Corresponding author. Mobile: (+91) 9000573759; E-mail:[email protected]
Abstract
Spacers are important component in the Gas Insulated systems. Most of the dielectric strength
breakdown and surface flashover cases were due to spacer failures. Non uniform electric field
distribution along the surface of the spacer and high field stress at triple junctions are reasons for
these failures. Accurate modelling of the Spacer geometry is required for a better stress spread as it
enhances the life of the component. Seldom stress control by means of shape modelling results in
difficulties like moulding and fabrication.In this paper, a Polymeric Insulator is designed for a Single
phase GIS for reduction of electric field stress. Electric field calculations for Nitrades, Oxides and
Carbides type nano composites are computed and the reduction of electric field sress is done with the
insertion of metal inserts.
Keywords:Electric Field Stress; Spacer; GIS; Polymeric; Insulator
ICMM-2019 299 Book of Abstracts
ICMM:739 | Identification of Linear and Non Linear Curve Fitting Models
Using Particle Swarm Optimization Algorithm
P.Syamala Rao1, Dr.G.Parthasaradhi Varma2, Ch.Durga Prasad3
1Research scholar, Dept of CSE, Acharya Nagarjuna University, Guntur, India
2Professor, Dept of CSE, KL University, Vijayawada, India
3Assistant Professor, Dept of EEE, SRKR Engineering College, Bhimavaram
*Corresponding author. Mobile: (+91) 9440106791; E-mail:[email protected]
Abstract
Identification of approximate model of the physical systems can be achieved by fitting the
data. In this paper particle swarm optimization algorithm (PSO) is used for linear and polynomial
curve fittings. Data generated from the known models and curve fitting is done by PSO using reverse
engineering mechanism at the initial stage. In this process of curve fitting, two types of inertia
mechanisms are used in PSO for getting better results. Later, real time financial series forecasting is
considered for validating the PSO estimated regression models. Results shows the dynamic inertia
weight strategy based PSO yields better fitting and avoids additional decisions on control parameters.
Keywords:Data fitting, Regression Models, Particle swarm optimization (PSO)
ICMM-2019 300 Book of Abstracts
ICMM:740 | Effect of Lithium Fraction on Glass Transition Temperature Tg
And Ionic Conductivity σ of Lithium Borosilicotitanate Glasses
N.S. Satpute1, A.V. Deshpande2* and V. D. Raut3** 1Department of Applied Physics, Dharampeth M.P Deo Memorial Science College,
Nagpur, 440033(India) 2 Department of Applied Physics, Visvesvaraya National Institute of Technology, Nagpur,
440011(India) 3Department of Applied Physics, G.H.Raisoni College of
Engineering,Nagpur440016(India)
*Corresponding author. Mobile: (+91) 9766572670; E-mail: [email protected]
Abstract
Solid state lithium ion conductors are being extensively investigated in the hope of
developing materials with high ionic conductivity, good electrochemical stability and useful
mechanical properties. Such materials have many applications in energy storage and other
electrochemical devices. Lithium ion conducting glasses have advantages over, for example, polymer
based systems, in that conduction can be solely attributed to the lithium species. It has been reported
that , the glass composition containing lithium in borosilicate network gives good conductivity. TiO2
is reported to increase the glass forming ability. Hence TiO2 is added to three different lithium
borosilicate compositions. In the present work, titanium oxide containing lithium borosilicate glasses
have been synthesized by conventional quenching technique.
The XRD was done for all glass samples to conform their amorphous nature. Transport
number measurements were carried out to determine the contribution of ions to the total electrical
conductivity of the glasses. Electrical conductivity (σ) of these glasses has been studied by dielectric
impedance analyzer as a function of frequency at different temperatures in the range 480 to 650 K.
Glass transition temperature Tg for the glasses has been determined by using DTA. The density of all
glass samples has been determined.
It has been observed that the electrical conductivity increases with increasing content of TiO2
which can be attributed to the modification of the structure by the addition of larger titanium ions. A
good correlation has been obtained between the electrical conductivity, activation energy, density
and Tg values. It has been also reported that, there is a very good correlation of lithium fraction,
glass transition temperature and ionic conductivity observed in these glasses
Keywords:lithium borosilicate; TiO2; glass transition temperature; conductivity; lithium fraction
Acknowledgements
One of the authors (NSS) wishes to express sincere thanks to Dr. V. K. Deshpande for providing
research facilities at V. N. I. T., Nagpur
ICMM-2019 301 Book of Abstracts
ICMM:755 | Intelligent Controllers for Grid Integrated RES System and their
Challenges: A Brief Review
Sainadh Singh Kshatri1, Dr. Javed Dhillon 1, Dr. M Aruna Bharathi2
1Department of Electrical Engineering ,Lovely Professional University, G. T. Road,
Phagwara-144411, Punjab, India. 2Department of Electrical & Electronics Engineering, Geethanjali College of Engineering
and Technology, Hyderabad, Telangana. 501301
*Sainadh Singh Kshatri: (+91) 9490440220; E-mail: [email protected]
Abstract
A conquest for Science and also Technology and also the ever-growing planet of innovation
trigger numerous innovations. Currently India demandingly picking to beat nonrenewable fuel
sources sparsity issues along with Renewable Energy Sources (RES). Renewable Energy Sources
needs intricate innovations for the usage. Renewable resource resources and also modern
technologies possess prospective to supply options to the enduring electricity troubles being actually
experienced due to the establishing nations. The renewable resource resources like wind power, solar
power, geothermal power, electricity, biomass electricity and also energy tissue innovation may be
made use of to get over electricity lack in India. To overcome the power demand for such a fast-
growing economic climate, India will certainly need an ensured source of 3-- 4 time extra power than
the overall power consumed today.
This work reviews different control techniques and proposes a new control technique Optimal
Recurrent Neural Networks (ORNN) based Controller to mitigate the power quality (PQ)
disturbances of power system. In the proposed approach, optimal weight selection is employed for
enhancing the learning procedure of RNN (ORNN). Here, ORNN technique is utilized for selecting
the ideal control signal of grid inverter through optimal adjustments of the control variables in the
power system. The proposed strategy creates the ideal control of the grid inverter which tries to
enhance the power quality of a power system and manage the line voltage by providing reactive
power compensation. This paper reviews several papers with different control strategies applied to
the grid connected inverter.
Keywords: RES; PV; ORNN.
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ICMM-2019 302 Book of Abstracts
ICMM:756 | Development of Nanostructure LiMn1.5Cu 0.5O4 usingMicrowave
assisted Sol-gel Method
M. Aruna Bharathi1,*, R.S. Raju1, K. Venkateswara Rao2, M. Sushama2, V.
Subhashini2
1 Geethanjali College of Engineering and Technology,Hyderabad,501301, India
2 Jawaharlal Nehru Technological University, Hyderabad, 500085, India
*Corresponding author. Mobile:, Telephone: (+91) 9908325596; E-mail:[email protected]
ABSTRACT
A high voltage, high power and stable non toxic cathode materials is gaining attention due to
increasing demand for Li-ion battery (LIB) for use in Battery Electrical Energy Storage (BEES)
system. This paper explains the preparation of a thermally stable high voltage LiMn1.5Cu0.5O4
spinel synthesized using Citric Acid Modified (CAM) microwave assisted sol-gel method. The
synthesized sample was characterized using XRD, SEM, HRTEM, EIS and CV. Our powder XRD
analysis shows that the sample has a pure single phase and possessed a good crystallization in the
range of 20-30 nm. The lower weight loss (<10%), as observed from TG/DTA graphs, represents the
nano crystalline LiMn1.5Cu0.5O4 material is thermally stable. The electrochemical studies show single
phase behaviour in the potential range of 4 to 5 V potential region with a good cycling property. The
impedance spectra obtained from the electrode, made out of this material, has semi circles in a high
and intermediate frequency range representing lower charge transfer resistance that enhances the life
cycles of battery. The morphological studies exhibit homogeneous particle distribution in nanoscale.
This uniform distribution is attributed to the microwave treatment, which shortened the synthesizing
time and has overcome the agglomeration of particles. This kind of morphology is very essential for
both the high specific capacity and good cyclebility. Further, the smaller particle size results faster
diffusion of Li to produce effective charge transfer that results in the capacity of the nanostructured
material. Therefore, the nanostructured LiMn1.5Cu0.5O4 is well suited cathode material for LIB
applications in BEES systems.
Keywords:Metal Oxide; Nanostructure; BEES; Spinel; CAM Microwave; Intercalation
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ICMM-2019 303 Book of Abstracts
ICMM:757 | A New Approach to the Construction of Transition Matrix with Application to Control Systems
P. Sailaja1, K.V. K. Viswanadh2 and K. N. Murty*3 1Department of Mathematics, Geethanjali College of Engineering and Technology, Cheeryal (V), Keesara
(M),Medchal (Dt.), Telangana (State), India. [email protected] 23669, Leatherwood Drive, Frisco, Texas, USA 75033. [email protected]
3Department of Applied Mathematics, Andhra University, Visakhapatnam Dist, Andhra Pradesh, India.
* Corresponding Author: [email protected]
Abstract
In this paper we present a new approach to the construction of a transition matrix associated
with first order matrix system of differential equations. This method is unique and is applicable to all
problems that arise in control systems and the tedious calculations so far existing in literature will be
condensed to less than half.
ICMM-2019 304 Book of Abstracts
ICMM:2104 | Synthesis And Characterisation Of Iron Oxide Nanoparticles
Using Egg-White
G. Srikanth1, N. Jayarambabu2, K. Venkateswara Rao2** 1MATERIAL SCIENCE AND NANO TECHNOLOGY (MSNT), JNTUHCES, SANGAREDDY-
502273, INDIA2CENTRE FOR NANOSCIENCE AND TECHNOLOGY, IST, JNTUH_HYDERABAD-500085, INDI
**Corresponding author. E-mail:[email protected]
Abstract
Metal oxide nanoparticles have grabbed attention of researchers due to their wide variety
of properties. Recently, iron oxide nanoparticles (NPs) have attracted much consideration due
totheir unique properties, such as super-Para magnetism, surface-to-volume ratio and greater
surface area. Iron oxides exhibit great potential in the numerous fields such as biomedicine,
agriculture, and environment. Iron oxide nanoparticles (Fe NPs) are often synthesized using
chemical methods, which releases environmentally hazardous chemicals. Recent studies have
shown the synthesis of iron oxide nanoparticles using biological methods from plant extracts,
micro-organisms and bio-degradation. In the present study, iron oxide nanoparticles were
synthesized using egg white extract. It contains albumen, acts as both capping and reducing agent.
Precursors taken are both ferrous chloride and ferric chloride. The main focus of the study is to
synthesize, characterize the Iron-Oxide nanoparticles along with it’s Nano-fluid properties. The
prepared Nano-powders were characterized by using X-Ray Diffraction (XRD) for determining
crystallite size, lattice constant and unit cell volume, Field-Emission Scanning Electron
Microscopy (FE-SEM) to study morphological characteristics, Energy-dispersive X-ray
spectroscopy (EDS) for elemental analysis, Fourier-transform Infrared Spectroscopy (FTIR) for
functional group analysis, Particle size analyser(PSA) to study average crystal size, Uv-Vis
Spectroscopy (Uv-Vis) to study optical properties of the sample.
Table of contents
Flow chart for the synthesis and FE-SEM images
Keywords:Bio-synthesis; IO NPs; Egg-White; Characterization; Nano-fluid; FE-SEM;
Acknowledgements: The authors would like o thank CNST of JNTUH Institute of science and
Technology, kukatpally for providing lab facilities and encouraged to carry out research project.
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ICMM-2019 305 Book of Abstracts
ICMM:2105 | Evolution of magnetic properties of Nano Ca-hexaferrites with
Al substitution in hydrothermal synthesis
Ch. Mamatha1*, P. Subhashini2, M. Krishnaiah2
1Department of Basic Science, Sri Venkateswara College of Engineering,
Vidya Nagar, Banglore 2Department of Physical Sciences, Sri Padmavati Visvavidyalayam,
Tirupati-517502, India.
*Corresponding author. Mobile: (+91) 9972008585; E-mail:[email protected]
Abstract
Nano technology is fascinating researchers due to the abundant functions. Synthesis of
nanostructure materials is one of the most enthusing areas in materials science due to their unique
physical property and potential applications. Aluminum substituted M-type Hexaferrites are
ferrimagnetic materials. Series of Aluminium substituted Calcium Hexaferrite samples have been
prepared by hydrothermal synthesis method. Structural properties of the samples are studied with
XRD, SEM and TEM. Magnetic properties are carried out with the help of vibrating sample
magnetometer at room temperature. Effects of Aluminium substitution and synthesis method on
structural and magnetic properties are studied. XRD data of all samples have established the
formation of single-phase M-type (Magneto plumbite) hexagonal ferrites with the space group of
P63/mmc. Grain size, lattice parameters and volume of the samples are calculated. Lattice parameters
are found to shrinkage with increasing Al content. Since hydrothermal synthesis is low temperature
and high-pressure synthesis, particle size is less compared to other standard methods and particles are
found to be in Nano size. SEM analysis revealed that the particles are of similar grain morphology.
From these studies it is apparent that Al substituted Ca-hexaferrites are ferrimagnetic at room
temperature.
Keywords: Nano hexaferrites; Ferrimagnetism; Hydrothermal synthesis, Magneto plumbite.
ICMM-2019 306 Book of Abstracts
ICMM:2111 | Optical and Structural Studies of B2O3-ZnO-Na2O-Li2O Glasses
Containing Ag Nano Particles
A. Ashok, J. Bhemarajam, G. Upender, M. Prasad* Department of Physics, Osmania University, Hyderabad-500007, Telangana State, India
*Corresponding author. E-mail address: [email protected] (M. Prasad)
Abstract
B2O3-ZnO-Na2O-Li2O (BZNL) based glasses containing silver nano particles (Ag NPs) were
prepared by melt-quenching technique. Four reducing agents such as Bi2O3, As2O3, Sb2O3, SnO were
separately used to reduce Ag+ ions into Ag
o atoms in the form of nano particles. The glasses were
characterized by XRD, FTIR, DSC, Optical absorption and Raman spectroscopy. The amorphous
nature of the prepared glasses was confirmed through XRD and SEM measurements. The EDS
spectra showed that all the added elements were present in the respective glasses. The vibrational
features of various functional groups like stretching vibrations of B–O linkages in BO4 tetrahedral,
asymmetric stretching vibrations of B–O bond in BO3 trigonal units and vibrations of Zn–O bonds
from ZnO4 groups were identified by FTIR and Raman spectroscopy. From optical absorption studies
it was observed that as prepared samples except SnO did not show characteristic surface plasmon
resonance (SPR) band of Ag. Therefore, all the samples were heat treated at 500oC in accordance
with DSC thermogram to form Ag nano particles and were confirmed by optical absorption spectra.
It was observed that the doping of SnO to BZNL-Ag glass system could assist the growth of silver
nano particles.
Keywords: Glasses; Raman spectra; Optical absorption; FTIR; Ag nano particles
ICMM-2019 307 Book of Abstracts
ICMM:2114 | Studies on Dielectric Properties of Polymer Blend of PANI with
PVDF/KDP Composites
Bharati Basavaraj1,*, Hajeebaba K Inamdar1,2 and Basavaraja Sannakki1,*
1Department of Post Graduate Studies and Research in Physics, Gulbarga University, Kalaburagi
2Department of PG Studies and Research in Physics, Gulbarga University Gulbarga-585105, India.
* Corresponding author. Tel.: +91 9740478781,(Dr. BasavarajaSannakki)
E-mail address:[email protected]&[email protected]
Abstract
The polymer blend composites of PANI with PVDF/KDP have been synthesized by
polymerization method. The different polymer blend of PANI with PVDF/KDP composites are
obtained by adding 10, 20, 30, 40 and 50 wt% of KDP were added with PVDF of 1N concentration
during PANI synthesis to get the polymer blend of PANI with PVDF/KDP composites. The
synthesized samples of PANI and polymer blend of PANI with PVDF/KDP composites polymer
were characterized by using X-Ray diffraction (XRD). The dielectric properties such as dielectric
constant, dielectric loss and AC conductivity for the composites of polymer blend of PANI with
PVDF/KDP composites at different weight percentages are studied as a function of frequency in the
range 5Hz–35MHz at room temperature. It is found that the dielectric permittivity decreased
exponentially at lower frequency region up to 180 Hz and then the dielectric permittivity remains
constant at higher frequency region as the frequency increased. It is also observed that the dielectric
permittivity decreased as the weight percentages of KDP increases in PVDF with PANI. AC
conductivity increased for PANI, polymer blend of PANI with PVDF/KDP composites at 10, 20, 30
and but for 40 and 50 wt% it is decreased.
Keywords: polymer blend of PANI with PVDF/KDP dielectric constant, dielectric loss and A.C
conductivity, KDP.
ICMM-2019 308 Book of Abstracts
ICMM:2115 | Electrical Property Study on Polyaniline/Cadmium
Oxidecomposites
Narsappa1, Hajeebaba K Inamdar2, Sasikala. M3, M.V.N. Ambika Prasad4*
1Department of ECM, J.B Institute of Engineering and Technology, R.R Dist, Hyderabad-500075.
2 Department of Physics, J.B Institute of Engineering and Technology, R.R Dist, Hyderabad-500075.
3Department of EEE, GodutaiWomens f Engineering College, Sharananagar, Kalaburagi, India 585102
4Department of PG Studies and Research in Physics, Gulbarga University Gulbarga-585105, India.
.
* Corresponding author. Dr. M.V.N. Ambika Prasad, Tel.: +91 9448405817.
E-mail address:[email protected]
Abstract
Cadmium oxide doped in polyaniline (CdO /PANI) composites were prepared with various
weight percentages by in situ polymerization method using aniline, ammonium per sulfate, and CdO
as starting materials. The temperature& frequency dependent conductivity behavior of PANI / CdO
composites have been studied. The formation of PANI and PANI / CdO composites with regards to
the structural and microstructural properties of the materials were investigated by XRD and SEM
techniques. The DC conductivity of Pure PANI and its composites have been measured in the
temperature range from 30°C to 160°C. The variation of σac with frequency obeys power law except
a small deviation in the low frequency region and the σac increases with increase in CdO
concentration.
Key words: Conductivity, SEM, XRD, PANI, CdO
ICMM-2019 309 Book of Abstracts
ICMM:2126 | A Density Functional Study of Hydrogen Storage in Li
Decorated C20 Fullerene
Rakesh K. Sahoo1*, Shakti S. Ray1 Sridhar Sahu1
1High Performance Computing Lab, Department of Physics, Indian Institute of
technology(Indian School of Mines), Dhanbad, Jharkhand, 826004, Indian.
*Corresponding author. Mobile: (+91) 7008635942; E-mail: [email protected]
Abstract
Molecular adsorption of hydrogen in lithium decorated smallest fullerene (C20Li2) has been
carried out within the framework of density functional theory (DFT) at B3LYP/6311+G(d,p) level.
Hydrogen molecules were added sequentially till no more hydrogen molecules could accommodate
by the C20Li2. The global reactivity descriptors such as, electronegativity (χ), hardness (ɳ), and
electrophilicity (ω) were calculated to confirm the kinetic stability of the clusters. It has been
observed that the C20Li2 clusters could hold maximum of eight hydrogen molecule with average
adsorption energy in the range 0.11 - 0.06 eV/H2 resulting in gravimetric density of 5.98 wt% which
is in accordance with the target set by US Department of Energy (US-DOE) for optimal hydrogen
adsorption. The average adsorption energy value and the distance between Li atom and hydrogen
molecules indicates the process to be physisorption type. Topological analysis using Bader's quantum
theory of atoms in molecules (QTAIM) concluded that the interaction between H2 and Li atom to be
closed shell type with ρ < 0.20 a.u with positive corresponding to ionic or van der Walls bonds.
Thermochemistry calculations were carried out to calculate the Gibbs free energy corrected average
adsorption energy which reveals the feasible adsorption temperatures and pressures. The desorption
temperature were calculated using Van’t Hoff equation.
Keywords: DFT, Fullerene, QTAIM, Hydrogen storage, Thermochemistry.
Acknowledgements
We thankfully acknowledge Indian Institute of Technology (Indian School of Mines), Dhanbad for
providing all research facilities.
ICMM-2019 310 Book of Abstracts
ICMM:2128 | High Performance Er, Yb - Doped Ceo2 Bifunctional
Upconversion Particles for Dye Sensitized Solar Cells with Platinum Free
SnS Counterelectrode
A. Meenakshamma1, M. Gurulakshmi1, S. Narendra Babu2, M. Raghavender1, * 1Department of Physics, Yogi Vemana University, Kadapa-516005, A.P., India
2Department of Physics, Osmania University, Hyderabad 500007, T.S. India.
*Corresponding author. Mobile: (+91) 9885069418; E-mail: [email protected]
Abstract
Upconversion Er3+
/Yb3+
co-doped CeO2 submicron sized particles synthesized through classical
hydrothermal method for development of dye sensitized solar cells1 (DSSC). The insertion of
upconverter CeO2:Er3+
/Yb3+
into photoelectrode (PE) by spin coat method evidenced power
conversion efficiency (PCE) of 6.91 %, JSC = 15.8%, VOC = 0.62 and FF = 0.7 using platinum free
counterelectrode (CE) made with SnS through spray coat method. The test device performance is
further optimized by introduction of carbon particles into SnS CEs. The results are compared with
the standard platinum based DSSC (8.32 %) and evaluated varies photovoltaic parameters.399
Keywords: Upconverter DSSC, Pt-free SnS counterelectrode, LiI effect, Bifunctional CeO2: Er/Yb.
Acknowledgements
A.Meenakshamma is thankful to SERB, DST for awarding JRF and financial support through
EMR/2016/007049. M. Raghavender thanks SERB, DST (Grant No. EMR/2016/007049) for
financial support to carry out this work.
ICMM-2019 311 Book of Abstracts
ICMM:2131 | Microstructural and Electrical Properties of Mg substituted
Li4Ti5O12 Synthesized by Ceramic Method
B. Vikram Babu1*, M. Sushma Reddi2, G. Chandana1, A. Ramamkrishna1, Tulu Wegayehu1,
K. Samatha1, V. Veeraiah1
1Department of Physics, Andhra University, Visakhapatnam, India -530003
2Department of Physics, Dr. B. R. AmbedkarUniversity, Srikakulam, India -532410
*Corresponding AuthorE-mail:[email protected], Mobile: (+91) 9550501803
Abstract:
In this paper the effect of magnesium (Mg) substitution in lithium (Li) site of spinel lithium titanate
(Li4Ti5O12, LTO) anode materials for lithium-ion batteries (LIBs) is extensively studied. The anode
materials based on the formula Li4-xMgxTi5O12 (x=0 and 0.2) are prepared by conventional ceramic
method at 850° C for 16h. Their phase formation processes, crystal structures, morphology, elemental
analysis, cation distribution and electrical properties were studied using XRD, SEM, EDX, FT-IR and
CIS characterization techniques. The X-ray diffraction (XRD) studies revealed the exact structure of
the material which belonged to cubic spinel group with Fd-3m space group. The phase morphological
features and grain size distribution were found using scanning electron microscopy (SEM) and the
grainsize was found to be in the range 0.9-1.1μm. The FT-IR results revealed the structure of the oxide
lattice built of MO6 (M= Li, Mg and Ti) as tetrahedra and octahedra. The electrical impedance studies
showed the material to exhibit excellent conductivity which was found to be 2.8×10-5
S/cmat ambient
temperature for frequency ranging from 20 Hz to 1MHz.
Keywords: Anode material, XRD, FT-IR, LCR.
ICMM-2019 312 Book of Abstracts
ICMM:2132 | Field Stress Control of a Post Type Insulating Spacer with
Functionally Graded Material in a Gas Insulated Busduct
N. Chaitanya Dathu1, G.V. Nagesh Kumar1*, M. Aruna Bharathi 2 and B. Sravan Kumar3
1Department of EEE, JNTUA College of Engineering Pulivendula, INDIA
2Department of EEE, Geethanjali College of Engineering and Technology, Cheeryal, Keesara, Hyderabad,
Telangana, India 3Department of EEE, GITAM University, Visakhapatnam, INDIA
*Corresponding author. Mobile: (+91) 9000573759; E-mail:[email protected]
Abstract
High voltage electric utilities are hindered with certain difficulties like high stress distribution and
insulation damage that are needed to be taken care for reliable operation of the system. In a Gas
Insulated bus duct, high field stress along the spacer surface especially at the contact point of the
conductor, insulator and gas (called triple junction) is a major factor affecting the insulation strength.
Research studies of shaping the spacer were found effective in controlling the stress distribution but
found to be complicated in real time application. In this paper, functionally graded materials of post
type spacer with different permittivity are proposed for controlled field stress distribution at the
spacer surface. Electric field calculations for three gradings namely grading to high, grading to low
and U shape are done. Properly shaped metal inserts are incorporated to have a uniform stress
distribution along the spacer.
Keywords: Electric Field Stress; Spacer; GIS; FGM; Insulator
ICMM-2019 313 Book of Abstracts
ICMM:2133 | Insulation Integrity of Disk Type Spacer with U- type Graded
Material in a Single Phase Gas Insulated Busduct
K.Sushma1, G.V.Nagesh Kumar1*, M.Aruna Bharathi 2and Akanksha Mishra3
1Department of EEE, JNTUA College of Engineering Pulivendula, INDIA
2Department of EEE, Geethanjali College of Engineering and Technology, Cheeryal, Keesara, Hyderabad,
Telangana, India 3Department of EEE, Vignan’s Institute of Engineering for Women, Visakhapatnam, INDIA
*Corresponding author. Mobile: (+91) 9000573759; E-mail:[email protected]
Abstract
High voltage power equipments are becoming more dense and subjected to high stress leading to
insulation failure. Insulator design plays a vital role in improving the reliability of the system. In GIS
the solid supporting structures called spacers are vulnerable to more stress and their design is of
concern. The point of contact of the conductor, gas and spacer called the triple point junction in Gas
insulated bus duct is highly stressed region and is responsible for major insulation failures.
Switchgear design in GIS needs thorough field distribution at the supporting structures called
spacers, which is important for healthy operation of the system. In this paper, U – Type graded
material is taken for Disk type spacer with different permittivity for controlling field stress
distribution at the spacer surface. Electric field calculations for three gradings namely grading to
high, grading to low and U shape are done and compared.
Keywords: Electric Field Stress; Spacer; GIS; U- type FGM; Insulator.
ICMM-2019 314 Book of Abstracts
ICMM:2135 | Structural Properties of Erbium (Er3+) Substituted Cu-Cd
Ferrite Nano Particles
G. Vinod1, J. Laxman Naik1, K. Rajashekar2, B. Naresh1, B. Babu Rao1 and D. Ravinder1 1Department of Physics, Osmania University, Hyderabad-500007, Telangana, India
2Kamala Institute of Technology & Science, Singapur, Huzurabad-505468, Telangana, India
Corresponding author. Mobile: +918985279013; E-mail:[email protected]
Abstract
Cu-Cd-Er ferrite nano particles having the compositional formulaCu Cd Erx Fe2-x O4
(Where x=0.001, 0.0015, 0.0020) was synthesized by CGAC method (Citrate-Gel Auto
Combustion). The structural properties were carried out by X-ray diffraction (XRD) and Scanning
Electron Microscopy (SEM) . XRD studies are revealed that the structure of these nanoparticles are
conformed with the single phase cubic spinal structure. The crystallite size lies in the range 21.0-42.8
nm. The lattice parameter has been calculated from d-spacings and interpreted on the basis of ionic
radius. The observed results can be explained on the basis of erbium composition.
Keywords: CGAC method (Citrate- Gel Auto-Combustion), Ferrite Nano particles, XRD, SEM and
FTIR.
ICMM-2019 315 Book of Abstracts
ICMM:2141 | Application of Magnetic Nanoparticles in Water Purification
Shaikh Saima Anam, Vishwadeep Khosepatil, Dr. K.M. Jadhav Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad,
431 001, India.
*Shaikh SaimaAnam, Mobile no.: 7620238917, E-mail: [email protected]
Abstract
Recent advances in nanoscience have paved way for magnetic nanoparticles (MNPs) to be
used for water purification. In this study, magnetic nanoparticles were introduced due to their
impressive properties like high adsorption capacity and high extraction efficiency, high surface area
to volume ratio (even for particles less than 30nm in size), ability of magnetic immobilisation and
generation of oxidative stress in microbial contaminants thereby leading to heavy metal adsorption
and anti microbial activity. The MNPs were synthesized by chemical co-precipitation method. The
results showed high bacteria removal efficiency (99.5%), removal of heavy metals (Cu, Cr, As, Pb)
from acqueous system to a much better extent. It is suggested that MNPs are worth applying as this
technique is simple, cost effective and reusable. The toxicity test suggested that no significant
genotoxicity or cytoxicity existed in water treated with few MNPs (poly-allylamine hydrochloride)
showing they are biocompatible, whereas research on environment effect of few MNPs (iron oxide)
has to be addressed.
Keywords: Magnetic nanoparticles, bacteria, adsorption, extraction, surface area, heavy metals,
toxicity, cost effective, environment, biocompatible.
Acknowledgements
The authors extend their sincere thanks to UGC-SAP Programme (F.530/16/DRS-I/2016 (SAP-2) Dt.
16-04-2016) and DST-FIST (Project NO. SR/FST/PSI-210/2016 (C) dtd.16/12/2016) for providing
financial support.
ICMM-2019 316 Book of Abstracts
ICMM:2145 | Investigation of the TiO2- Multi-wall carbon nanotubes
(MWCNTs) composite as an effective photoanode in the dye sensitized solar
cell
Sai Kumar Arla1, Hussen Maseed2, Siva Sankar Sana 1, Venkataramana
Badineni 1, Vijaya Kumar Naidu Boya 1,* 1Department of Materials Science and Nanotechnology, Yogi Vemana University, Kadapa
-516005, Andhra Pradesh, India 2School of Engineering Sciences and Technology, University of Hyderabad, Gachibowli,
Hyderabad-500046, India.
*Corresponding author: Mobile: +91 9966320402; E-mail:[email protected],
Abstract
In this work, we report the synthesis of TiO2 nanotubes (TNTs) using hydrothermal method
and incorporated MWCNT insitu to make a hybrid nanocomposite of TiO2 - MWCNTs. The as-
synthesized TiO2 - MWCNTs composite structural, optical, elemental analysis was characterized by
using different techniques such as X-ray diffraction (XRD), UV-visible spectroscopy, and energy
dispersive spectroscopy (EDAX), elemental mapping. The morphology and formation of TiO2 -
MWCNTs composite nanotubes was confirmed from electron microscopy techniques viz., field
emission scanning electron microscope (FE-SEM) and high-resolution transmission electron
microscope (HR-TEM). The effect of concentration of MWCNTs in TiO2-TNTs photoanode was
investigated on the performance for dye-sensitized solar cells (DSSCs) application. The performance
of DSSCs were evaluated by measuring photocurrent voltage (I-V) characteristics and
electrochemical impedance spectroscopic (EIS) and found that the power conversion efficiency of
DSSC depends on the concentration MWCNT in the photoanode. DSSC fabricated using 6 wt % of
MWCNT with respect to TiO2 containing nanocomposite as photoanode has shown high power
conversion efficiency (PCE) of 1.99%.
Keywords: TNTs; MWCNT; Photoanode; DSSCs.
ICMM-2019 317 Book of Abstracts
ICMM:2146 | Effect of Binder Material in Preparation of Carbon Free TiO2 as
Photo Anode in Dye Sensitized Solar Cells
Sai Kumar Arla 1, Siva Sankar Sana 1, Venkataramana Badineni 1, Hussen
Maseed2, Vijaya Kumar Naidu Boya 1,* 1Department of Materials Science and Nanotechnology, Yogi Vemana University, Kadapa –
516005, Andhra Pradesh, India 2School of Engineering Sciences and Technology, University of Hyderabad, Gachibowli,
Hyderabad-500046, India.
*Corresponding author: Mobile: +91 9966320402; E-mail:[email protected],
Abstract
In dye-sensitized solar cells, binder used in fabrication of semiconductor photo anode layer
plays a significant role on the surface morphology of the anode film, which has impact on the overall
performance of the DSSCs devices. In this work, two synthetic polymers (poly (vinyl alcohol)
(PVA), poly (vinylpyrrolidone) (PVP)) and their blends (1:1, 1:3, 3:1) are used as a binder and
investigated their effect on the efficiency of the cell. DSSC devices are fabricated using commercial
TiO2 nanopowder as photoanode anode, N719 dye, Idolyte HI-30 as electrolyte and Plastisol T as
counter electrode. Among DSSCs fabricated, the sample prepared with pure PVP as binder shows
the highest power conversion efficiency of 1.87%, short-circuit photocurrent density and open-circuit
voltage of 10.14 mA/cm2 and 0.56 V, respectively.
Keywords: DSSCs; PVA; PVP; XRD; SEM.
Acknowledgments
The authors are grateful to the Department of Science and Technology of New Delhi (DST -
DST / INSPIRE Fellowship / 2014 / IF 140988) in India who provided funds for young researchers
and Dr. M. Raghavender, Assistant professor, Dept of Physics, Yogi vemana University, Kadapa to
providing solar simulator.
ICMM-2019 318 Book of Abstracts
ICMM:2147 | Modulational Instability in Diffusive Semiconductor Plasmas:
Effect of Streaming Colloids
P.S.Malviya 1*, N.Yadav 2 1Department of Physics, Govt. J.N.S. Post Graduate College, Shujalpur 465333, India
2School of Studies in Physics, Vikram University, Ujjain 465010, India
*Corresponding author. Mobile: (+91) 9630361547; E-mail:[email protected]
Abstract
We report the effect of streaming colloids on modulational instability (MI) using a
hydrodynamic model of semiconductor plasmas. Ferroelectrics (FEs) are technologically important
because of their optical nonlinear properties. We find that the effective susceptibility without
colloids is order of 22193
.10 Vm
effe and with effect of streaming colloids is order of
22233
.10 Vm
effd which shows effect of streaming colloids. The colloidal grains (CGs) in
diffusive semiconductor plasmas found to bemodifying the characteristic and alter the optical and
physical properties of the material.
Keywords: Colloids; Modulational Instability (MI); strain dependent dielectric constant (SDDC);
Diffusive Semiconductor Plasmas.
ICMM-2019 319 Book of Abstracts
ICMM:2149 | Synthesis and Characterization of Zirconia Nanoparticles
J. Vinay, D. Rakesh, CH. Shilpa Chakra* CNST, IST, JNTU, Hyderabad, Telangana State, 500085, India
*Corresponding author. Mobile: (+91) 7799438736
E-mail: [email protected]
Abstract
In this study, the synthesis and characteristic results of Zirconia (ZrO2) nanoparticles was discussed.
Synthesis of ZrO2 nanoparticles was done by Sol-Gel method to achieve controllable particle
morphology. Zirconia nanoparticles have a number of excellent properties such as high strength,
fracture toughness, wear resistance, hardness and chemical resistance. ZrO2 nanoparticles was
characterized by Fourier Transform Infrared Spectroscopy (FTIR), UV-visible Spectroscopy ,
Particle Size Analyzer(PSA) and X-ray Diffraction (XRD). we can further use these nanoparticles as
effective anti-corrosion agents when composited with PANI.
Keywords: ZrO2 nanoparticles; Controllable morphology; Sol-Gel method; PANI.
Graphical Abstract :
Acknowledgements :
This work was supported by Centre for Nanoscience and Technology, Institute of Science
Technology, JNTU Hyderabad. The first author would like to acknowledge AICTE for TEQIP-III for
R&D support.
ICMM-2019 320 Book of Abstracts
ICMM:2150 | Morphology Tailored 1-D Zn Nanorods for Supercapacitor
Application
K. Jagadeeshwar Reddy1, B. Geeta Rani1, M. Sai Bhargava Reddy1, K.
Venkateswara Rao1* 1Center for Nano Science and Technology, Institute of Science and Technology, JNTU
Hyderabad, India
*Corresponding author. Mobile: (+919440858664) ;
E-mail:[email protected].
Abstract
In this work, One dimensional (1-D) Zinc oxide nanorods (ZONR) was synthesized as an
electrode material for super capacitor application. Super capacitor as energy storage devices has
gained lot of importance in recent research studies because of demand in the field of energy storage
due to urbanization. A simple and cost effective hydrothermal method was employed for synthesis of
1-D ZONR. The prepared ZONR was characterized by X-ray diffraction (XRD), Scanning Electron
microscope (SEM), Fourier Transform Infrared spectroscopy (FT-IR). The XRD pattern confirmed
hexagonal wurtzite crystal structure. The SEM images demonstrated the nanorod formation and
FTIR confirmed the functional groups present in the synthesized ZONR. Electrochemical
characteristics of ZONR were investigated for super capacitor performance using cyclic
voltammetry, galvanostatic charge-discharge and impedance studies. These studies of ZONR
exhibited a high specific capacitance with better cyclic stability, making it a suitable electrode
material for super capacitor application.
Keywords: Zinc oxide; Nanorods; SEM; Super capacitor; Stability.
Acknowledgements
The authors would like to thank their sincere appreciation to the Center for Nano science and
Technology, IST, JNTUH for providing the research facilities.
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photogr
ICMM-2019 321 Book of Abstracts
ICMM:2151 | Synthesis and Characterization of nano Sio2 Nanoparticles
Pavar Saikumar, D. Rakesh, CH. Shilpa Chakra*
Centre for Nano Science and Technology, IST, JNTU, Hyderabad, Telangana State, 500085, India
*Corresponding author. Mobile: (+91) 7799438736 E-mail: [email protected]
Abstract
In this work Nano SiO2 nanoparticles were synthesized using Sol-Gel technique. As synthesized
particles are been analyzed by varying the parameters (aging time, pH etc.) that affects the particle
size and hydrophobicity, hydrophilicity nature and UV light reflectance properties are also been
varied under controlled conditions. Nano SiO2 nanoparticles and thin films are been analyzed using
different characterization techniques like Fourier Transform Infrared Spectroscopy (FTIR), UV-
visible Spectroscopy, Particle Size Analyzer (PSA) and X-Ray Diffraction (XRD), Contact angle
measurement. Hydrophobic nature is been analyzed over different substrates.
Keywords: SiO2 nanoparticles; Sol-Gel method, UV reflectance, Hydrophobicity, Hydrophilicity.
ICMM-2019 322 Book of Abstracts
ICMM:2152 | Antioxidative copper nanoparticles for conductive inks
Gangarapu Akhila, D. Rakesh, Dr. Ch. Shilpa Chakra*
Center for Nano Science and Technology, Institute of Science and Technology, JNTU
Hyderabad, India
*Corresponding author. Mobile: (+917799438736) ;
E-mail:[email protected]
Abstract
Conductive inks are a recent progress in electronics and have a promising future applications
in flexible electronics and smart applications. Due to low melting temperature, low price and high
conductivity, copper nanoparticles have great potential to substitute conductive polymers, silver and
gold nanoparticles and others in conductive inks. Here we developed a new, simple and green
method to synthesize copper nanoparticles, which have the average size of around 92 nm and show
remarkable ability to prevent oxidation. Various characterization techniques like X-Ray Diffraction
(XRD), Particle Size Analyzer (PSA), UV Visible Spectroscopy, Fourier Transform Infrared
Spectroscopy (FTIR) were carried out. Using the copper nanoparticles for conductive ink, the
resistivity of the copper conductive films was 18.9µΩ•cm which was just about tentimes higher than
bulk copper's resistivity. The proposed approach to synthesize copper nanoparticles for high
performance conductive ink presents potential applications in flexible electronics.
Keywords: Copper Nanoparticles; conductive inks; electrical conductivity; flexible electronics; inks
Acknowledgements
The first author would like to acknowledge AICTE for GATE Fellowship and TEQIP-III for R&D
support.
ICMM-2019 323 Book of Abstracts
ICMM:2155 | Enhanced Electrical and Optical properties of Al doped and
ZnO nanoparticles for Optoelectronic Application: Eco-friendly Green Route
Veena Ragupathi1, Manukonda Madhu babu2, Puspamitra Panigrahi1
and N. Ganapathi Subramaniam*3
1Centre for Clean Energy and Nano Convergence (CENCON), Hindustan Institute of
Technology and Science, Chennai – 603 103, India 2Department of Aeronautical Engineering, Hindustan Institute of Technology and
Science, Chennai– 603 103, India 3Quantum Functional Semiconductor Research Centre (QSRC), Dongguk University,
Seoul, South Korea 100-715.
*Corresponding author. E-mail:[email protected]
Abstract
Optoelectronic materials have been developed greatly due to the wide usage of Liquid crystal
displays, touch screens and light-emitting devices. In this work, a simple, eco-friendly green
synthesis method has been adopted for the synthesis of pure and Al doped ZnO nanoparticles (1, 3
and 5 wt. %). Bio-extract was extracted from Citrus Aurantium peel. The structural, optical and
electrical properties of the as-synthesized material were analysed by X-ray diffraction, Scanning
Electron Microscopy, UV-Visible spectroscopy and Hall Effect measurements. XRD spectra indicate
the presence of hexagonal wurtzite structure. The crystalline size is decreased with increasing Al
concentration. Scanning electron microscopy results indicate that the addition of Al changes the
morphology from rod shape to platelets shape. UV-Visible results infer the shift in the band edge
towards lower wavelength and the bandgap increases with Al concentration. Hall effect
measurements reveals the enhanced carrier concentration in 5 wt% Al doped ZnO with the values of
1.3 X 1021
cm-3
.
Keywords:Al doped ZnO, Bio-extract, Green Synthesis, enhanced optical and electrical property
Acknowledgements
Authors are grateful to the financial support from the management of Hindustan University through
CENCON. One of the author Veena thanks, the research funding from Dongguk University though
QSRC.
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photograph of
the presenting
author.
ICMM-2019 324 Book of Abstracts
ICMM:2157 | Synthesis and Development of Silver nanoparticles decorated
Polymer Films for Room Temperature Sensing
Anju Jolly1, Saraswati Kailasa2*, Dr. Gurumurthy S C1
1Manipal Academy of Higher Education, Manipal, 576104, India.
2Jawaharlal Nehru Technological University (JNTUH) Hyderabad, 500085, India.
*Corresponding author. Mobile: (+91) 9177209598; E-mail:[email protected]
Abstract
Now a days thin film technology with nanoparticles playing a major role in the technological
advancement in the areas of photonics, optoelectronics, sensors, magnetic devices, catalysts, and
antimicrobial coatings. Moreover, the metal nanoparticles interspersed in polymer matrix have
exclusive structural properties. Many methods have been used to decorate nanoparticles on polymer
substrates. However long term stability and longevity become the major challenges. Therefore this
paper reports the vacuum evaporation of silver nanoparticles onto polymer substrate. The dip coating
process has been used to get uniform film. As synthesised silver nanoparticles were characterised by
various characterisation tools such as phase identification by XRD, optical microscopy and
morphology were confirmed by Scanning electron microscopy. The films are deposited for thickness
ranging from 25-75 nm held at a temperature of 413 K using thermal evaporation at different
deposition rates 0.1 to 0.4 nm/s in high vacuum of 1x 10-5
Torr. The results of the optical absorption
studies indicate the formation of particulate films. These films can achieve good response and
sensitivity for the room temperature gas sensing application.
Keywords: Silver nanoparticles; thin films; optical microscopy; room temperature; sensitivity.
Acknowledgements
This work was supported by Manipal Academy of Higher Education, Karnataka and Jawaharlal
Nehru Technological University ( JNTU), Hyderabad.
Please
insert
photograph
of the
presenting
author.
ICMM-2019 325 Book of Abstracts
ICMM:2159 | Structural and Electrical Properties of PANI+SWCNT
Nanocomposites Prepared by Chemical Mixing Method
P. Raju1, A. Geetha2, S. Uday Kumar2, G. Neeraja Rani1*
1Department of Physics,
2Department of ECE
Geethanjali College of engineering and technology, cheeryala, Hyderabad, Telangana, India-501301
*Corresponding author email: [email protected]
Abstract
Carbon-based nanoparticles have recently generated a great attention, as they could
createpolymer nanocomposites with enhanced transport properties, overcoming somelimitations
ofelectrically-conductive polymers for high demanding sectors.The polymer polyaniline (PANI)
matrix single walled carbon nanotube (SWCNT) nanocomposites were prepared using solution
mixing method.The structure and morphology of the SWCNT+PANI nanocomposites is studied
using by X-ray diffraction (XRD), Fourier Infrared spectroscopy (FTIR) and scanning electron
microscopy (SEM). The dielectric and conductivity properties were measured and analysed. Its
observed from the results that the conductivity, dielectric constant and dielectric loss increases with
increase in weight percentage of SWCNT in nanocomposites.
Keywords: Polymers; SWCNT; nanocomposites; electrical properties.
Acknowledgments
Authors are grateful to the financial support from Defence Research and Development Organisation -
DRDO.
ICMM-2019 326 Book of Abstracts
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