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Welcome to

AML120: Materials Science 3-0-2

J. Jain, R.K. Pandey, R. Prasad

J. Jain

Assistant ProfessorDepartment of Applied Mechanics

Office: III-232 DTel. 011-2659 1246Mob: 9582513867jayantj@am.iitd.ac.in

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R. Prasad

ProfessorDepartment of Applied Mechanics

Office: MS207/C-10Tel. 011-2659 1782Mob: 981853 8085rajesh@am.iitd.ac.inrajesh.prasad.iitd@gmail.com

AML120: Materials Science 3-0-2

Lectures: 3 hours/wk

Lab 2 hours/wk

Self study 3 hours/wk8 hours/wk

J. Jain: 6 lecturesR. K. Pandey: 6 lecturesR. Prasad: 30 lectures

AML120: Materials Science 3-0-2

Textbook: V. Raghavan, Materials Science

and Engineering: A First Course

3 lectures per week x 14 weeks = 42 lectures

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1. Introduction [1]2. Thermodynamics Review [2]3. Crystallography [4]4. Structure of solids [6]

Minor I

AML120: Materials Science 3-0-2

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AML120: Materials Science 3-0-2

5. Defects in crystalline solids [6]6. Phase Diagrams [4]7. Composite materials [1]8a. Plastic deformation I [2]

Minor Test II8b. Plastic Deformation II [3]9. Fracture and fatigue [3]10. Phase transformation [5]11. Corrosion [2]

Major Test

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1.00-3.00 pm InstructorMon Group 4, 9 JJ/RP

Tue Group 5,10 RKP

Wed Group 1,6 JJ/AA

Thu Group 2,7 RKP/RP

Fri Group 3,8 JJ/AA

All lab classes would be held in Materials Science Core Laboratory, Room MS207/C-6

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Minor IMinor IIMajorQuizzes + Lab Total

6060

12080

320

Grading

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Attendance PolicyA max of 10 grace marks for good attendance

Grace marks

Attendance %

0 75 100

0

10

Why sometimes air simply leaks out of a cycle tube while at other times it comes out with a burst?

By the end of this course you should be ableto answer some interesting questions

How are atoms arranged inside a solid?

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How we can produce interesting combination of properties?

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Why did Titanic sink?

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Artificial rain?

A giant "dragon" spewing out artificial rain over rural crop of Vidalia sweet onions

Concept of stability and metastability

What do we mean by stable state?

How we define metastable state?

Some materials tend to remain in metastableState for years and years!! Why???

Fig. 2.1

metastable

unstable

stable

Activation barrier

Fig. 2.2

Otherwise Unstable

Minimum Energy – STABLE EQUILIBRIUM

Maximum Energy – UNSTABLE EQUILIBRIUM

Global Minimum - Most STABLE

Local Minimum - METASTABLE