Tosoh Yttria-stabilized Zirconia（YSZ）

◆ Zirconia Powder（Nano Powder）

◆ Zirconia Fine Beads

◆ Zirconia compounds for Injection Molding

◆ Color Zirconia

◆ Zirconia Hollow Ball

◆ Zirconia Grinding and Dispersion Media

The fascinating world of Tosoh Zirconia

. . . where value and potential are limited only by oneÕs imagination

The unlimited possibilities for ZirconiaZirconia is a unique advanced ceramic – a chemical compound having the formula ZrO2.

Products manufactured from Tosoh’s yttria-stabilized zirconia (YSZ) powder exhibit

superior mechanical properties such as high strength and flexibility. As a technological

breakthrough, YSZ surpasses the strength limitations of traditional fine ceramics. Heat

insulating properties and oxygen-ion conductivity indicate zirconia has potential for use in a

wide variety of applications – everything from telecommunications to the new energy of the

future and environmental products.

Market share – proof of qualityTosoh is a pioneer in the development of YSZ and has become a major supplier to the

world. Earning a solid reputation for consistent high purity and quality that customers can

depend on, Tosoh continues to focus resources in R&D and customer services for the

ultimate evolution of Zirconia.

Grinding Media

SUPERIOR STRENGTH and DURABILITY,Tosoh’s zirconia grinding media is primarilyspherical and comes in a variety of sizes from 0.03mm to 25 mm. It is used to process materials fornot only machines and industrial parts, but alsoplays a vital role in the production of materials thatcomprise the micron-thin layers of electronics for mobile phones, as well as the processing of pigments in printing inks.

Indispensable for fiber-optic networks (ferrules, sleeves)

The information age of today and tomorrow is being built on global fiber-opticnetworks. Zirconia is an indispensable material used in the connectors withinthose networks.

STRONG, FLEXIBLE, and EASY to PROCESS, zirconia is rapidlybecoming the world standard for fiber-optic connectors – providing themaximum amount of data transmission with minimal loss.

Environmentally friendly and energy conservation

OXYGEN-ION CONDUCTIVITY is a UNIQUE QUALITYof zirconia.This fascinating characteristic makes zirconia useful inenvironmental applications for solid oxide fuel cells, which generatepollution-free electricity, as well as oxygen and NOx sensors used inthe automotive field.

Dental Materials

Combining STRENGTH and NATURAL BEAUTYReplicating the natural look and feel of real teethwithout compromising strength, Zirconia is nowgaining attention as a new dental material.

Mechanical Parts

Zirconia first appeared under the name “Ceramic Steel”.

In addition to strength, zirconia is RESISTANT to RUST,

CORROSION, and CHEMICAL REACTIONS, andtherefore is used in a variety of machines and other

industrial equipment. 10X standard ceramics,

and 100X MORE HEAT INSULATION THAN IRON,zirconia excels in heat shielding applications.

Providing value in daily life

INCREDIBLY DURABLE and SOFT to the TOUCH, zirconia is used inconsumer goods, such as luxury watches. For professional chefs, zirconiaknives don’t rust and stay extremely sharp while resisting stains and odors.

The future of ZIRCONIA IS JUST BEGINNING…

Basic Grades

◆TZ-3Y-E

Partially-stabilized zirconia powder with uniform dispersion of

3 mol % yttria. TZ-3Y-E exhibits superior sintering properties

and higher aging resistance at a lower sintering temperature

of 1300oC. Sintered bodies produced with TZ-3Y-E show a

fine crystal grain structure resulting in greater improvements

in strength, fracture toughness, as well as resistance to wear

and aging. TZ-3Y-E has numerous applications such as

materials for industrial parts and everyday products.

◆TZ-4Y TZ-6Y TZ-8Y TZ-10Y

Fully stabilized zirconia powder with uniform dispersion of

4~10 mol % yttria. Sintered bodies produced from these

powders exhibit oxygen-ion conductivity and heat insulating.

These grades have proven to be suitable for use in oxygen

sensor applications, electrolytes in solid oxide fuel cells,

materials for heat insulation, and many others.

○● Tosoh Zirconia Powder Series

Easy Moldability Grades “S”

"S" grades have a smaller surface area that contributes to

a smooth flow for the compound or slurry during injection

molding, tape casting, and other molding methods.

Therefore, "S" grades are highly recommended for producing

large parts with a mechanical press or CIP.

Binder Grades “B”

Tosoh's binder added grades are perfect for mechanical

pressing and CIP. "B" grades can be used "as is," thereby

eliminating the binder addition and spray drying steps in

customers' processes.

ATZ Grades “A”

“A” grades contain uniformly dispersed 3 mol % yttria, 20

wt% alumina, and exhibit extremely high mechanical

strength after HIPing. This grade is most commonly used to

produce industrial parts used in high strength, high wear

resistance applications.

Color Zirconia

Tosoh's color zirconia shows a deep tone that emulates

jewels. Also it can be used for optical anti-reflection and

other mechanical parts.

Tosoh also supplies a high purity, non-stabilized zirconia powder, TZ-0.For the development of custom powders, please contact the nearestTosoh sales office.

Using the latest hydrolysis processes and nano-technologies, Tosoh produced the TZ Series

of zirconia powders. Through complete control over materials and production processes,

Tosoh can maintain consistent high purity and quality. The TZ Series, the ultimate zirconia

powder, delivers added value and product improvements for the customer.

TZ －３Y Ｓ 20A B － EⅠ Ⅱ Ⅲ Ⅳ Ⅴ

Ⅰ: mol% of yttria

Ⅱ: easy moldability grades

Ⅲ: ATZ grades - 20 wt% alumina

Ⅳ: binder grades

Ⅴ: easy sintering grades

A Global Brand Earned with Quality You Can Trust

Zirconia Powders TZ Series

Fine Ceramics

Solid Electrolyte with Oxygen-ion Conductivity

Legend for grade names

〈Example〉

TZ-3Y-E TZ-3YS-E TZ-4Y TZ-6Y TZ-8Y TZ-8YS TZ-10YS TZ-3Y20A TZ-0

（TZ-3YB-E） （TZ-3YSB-E） （TZ-3YSB-C）

（TZ-3Y20AB） （TZ-8YSB）

Y2O3 （mol％） 3 3 4 6 8 8 10 3 0

Y2O3 （wt%）

AI2O3 （wt%）

SiO2 （wt%）

Specific Surface

5.2±0.5

≦0.04 ≦0.06 ≦0.04 ≦0.04≦0.12

0.1～0.4 18～22

7.0±0.6 10.3±0.6 13.3±0.6

≦0.1

≦0.02

Fe2O3 （wt%） ≦0.01

Na2O （wt%）

≦0.1

15.9±0.7 3.9±0.3 ─

Area （m2/g）

Powder Characteristics

Density （g/cm3） 6.05 6.05 6.02 5.90 5.80 5.50 ─

Hardness （Hv10）*2 1250 1400 ─

Bending Strength 1200 1000 500 300 200 2000（HIPing）

─ R.T. （MPa）*1

Typical Properties of Sintered Body

Actual Particle 0.04（40nm） （90nm） （40nm） （90nm） （40nm）

0.09 0.04 0.09 ─ 0.04Size （μm）

*1 : JIS R1601（3-point bending test） *2 : JIS R1610 （Loads : 98.07N）

16±3 7±2 16±3 7±2 6±2 15±3 14±3

Powder Characteristics and Properties

Tosoh Zirconia Process

TZ-3YS-E

100nm

All TZ Series powders are supplied ingranule form for easy handling.

TZ-3Y-E

100nm

Drying

Calcination

Spray Drying

Zirconia Powder

Hydrolysis

Zircon sand

ZrOCl2・8H2O

Milling

YCl3 10μm

SEM photo

TEM photos

Easy Sintering (TZ-3Y-E)

TZ-3Y-E（1350℃） TZ-3Y（1500℃）TZ-3Y-E（1300℃）

TZ-3Y-E

TZ-3YS-ETZ-3Y

TZ-3YS

1300 1350 1400 1450 15005.5

5.6

5.7

5.8

5.9

6.0

6.1

0.1

0.2

0.3

0.4

0.5

0.6

0.7TZ-3Y-E

TZ-3YS-E

Grain Size

Grain Size（μｍ）

Sintering Temperature（℃）

Density （ g/cm3 ）

Molding method : Cold isostatic pressing

Molding pressure : 1,000kg/cm2

Holding time（sintering）: 2hrs

High quality, fine grained sintered bodies, which exhibit

superior hydrothermal aging resistance, can be produced

from TZ-3Y-E when sintered under 1350℃.

TZ-3Y-E（1300℃）

TZ-3Y（1500℃）

40

30

20

10 0

100

80

60

40

20 0

60 12 18 24

0 12 36 48 60 72

TZ-3Y-E（1300℃）

TZ-3Y（1500℃） TZ-3Y-E（1350℃）

Transformation

Ratio to Monoclinic（％）

Aging Time（hr）

Transformation

Ratio to Monoclinic（％）

Aging Time（hr）

24

Moreover, when TZ-3Y-E was sintered at 1300℃,

monoclinic transformation（structural degradation）

did not occur during 72 hours of aging in water at

140℃.

● TZ-3Y-E can be sintered at a lower temperature of 1300℃.

● TZ-3Y-E has superior hydrothermal aging resistance.

● The lower the sintering temperature, the finer the grains.

30 micron with Great Potential

Zirconia Fine Beads TZ-B SeriesTosoh’s high-end manufacturing technology has yielded Zirconia

Fine Beads that exhibit superior strength and fracture toughness.

The TZ-B Series is now used in many applications such as blasting,

shot peening, and placing sand.

Grades TZ-B 30 TZ-B 53W TZ-B 53 TZ-B 90 TZ-B 125 TZ-B 180 TZ-B 250

20 25 38 75 106 150 212

～ ～ ～ ～ ～ ～ ～

38 106 75 106 150 212 300

μm≧95％ μm≧95％ μm≧95％ μm≧95％ μm≧95％ μm≧95％ μm≧95％

Please contact the nearest Tosoh sales office with requests for other sizes.

Sizes

Chemical Composition

Specific Density

Bulk Density

Crushing Load

ZrO2 , Y2O3

6.05 g/cm3

3.50 g/cm3

1050 MPa

0 10 20 30 40 50 60

The number of sample: 100 Unit: μm 20 ～ 25 25 ～ 32 32 ～ 38 38 ～ 45 45 ～ 53 53 ～ 63 63 ～ 75 75 ～ 90 90 ～ 105 105 ～ 125 125 ～ 150 150 ～ 180 ＞ 180

Advantages

● Due to the TZ-B Series’ well shaped round surface and

narrow size distribution, elaborate blasting can be

achieved without damaging products.

● Through its high density and superior hardness, the TZ-

B Series needs less processing time than common

metal or glass beads.

● The TZ-B Series’ higher crushing strength and wear

resistance results in less bead loss.

● The TZ-B Series is resistant to rust and corrosion.

Size distribution of TZ-B90

Properties of TZ-B90

Durability Comparison

Glass

Zircon

Zirconia（TZ-B90）

Test condition

●Dry air blasting （Direct pressure）

●Pressure : 0.38MPa

●Distance of nozzles : 100mm

●Work : SUS304

15

10

5

0

0 1 2 3 4 5 6 7 8 9 10 15 20 25 30 35 40 45 50

Weight loss due to

breakage（wt%）

Shots

Test data shows the result of shot blastingSUS304 using various types of beadsequivalent to TZ-B90. During the 50 blasts,the crushing ratio of TZ-B90 hardly rose.This shows the superior crushing strengththat the TZ-B Series provides.

TZ-B90

90μm

Standard Grades

Typical Applications

● Shot blasting (matte finishing, deburring, etc.)

● Shot peening

● Filler for various resins

● Placing sand (sintering, annealing)

● Spacer

Tosoh supplies optical fiber connector ferrule blanks and various

injection molded components produced by Tosoh Ceramics Co.,

Ltd. Starting material for the Tosoh zirconia compound PXA

Series is based on yttria-stabilized zirconia (YSZ) powder.

Tosoh offers customized special compounds to realize

customer’s need, such as ceramic compounds based on

materials other than zirconia. Please contact the nearest Tosoh

sales office for more information.

Proven Technology and Achievements

Zirconia Compounds for Injection Molding PXA® Series

Advantages

● Besides easy de-waxing and sintering, and superior

handling features, the PXA Series minimizes shrinkage

variance.

● Due to the high quality of Tosoh’s zirconia powders, the

PXA Series exhibits great strength, fracture toughness

and wear resistance.

● Tosoh has developed the recycling process of unused

green bodies based on the PXA Series.

Tosoh, in addition to powder production, is an injection

molding compound manufacturer with extensive

experience in the mass production of sintered bodies.

Based on this know-how, Tosoh has developed the

PXA Series delivering high quality, easy sintering, and

superior handling features.

Standard Grades

● PXA-100P

Compound for de-waxing in air; extensively used for

ferrule blanks.

● PXA-201P

Compound for de-waxing in nitrogen with good flow;

used for precision parts as well as larger parts with

an irregular shape. De-waxing in nitrogen is

recommended for these larger parts.

● PXA-211P

Compound for de-waxing in air; performance

equivalent to PXA-100P. Flow is equivalent to PXA-

201P.

Special Grades

● PXA-300 Series

Color zirconia compounds.

● PXA-400 Series

Zirconia compounds based on fully stabilized

zirconia powder.

● PXA-800 Series

Ceramics compounds other than zirconia.

FERRULE SLEEVE

Molded components

PXA Series

Injection molding

Ceramics

Compound

TZ Series

Ceramics powder Zirconia, alumina etc.

PXA® is a trademark of Tosoh Corporation.

Beginning Flow Excellent

De-waxing Easiness

Excellent

PXA-100P

PXA-211P

PXA-201P

● PXA-230 Series

These compounds can be de-waxed in air and

feature excellent de-waxing properties with good

flow.

Integrity and depth of color in zirconia exudes elegance

equal to precious stones. Superior wear resistance means

the brightness never fades. Color Zirconia will provide the

sparkle that customers need for development of new

products. In addition to colored powder, compounds for

injection molding and sintered products are also available.

Jewel-like Dignity and Elegance

Color Zirconia

Using unique molding technologies, Tosoh has

developed Zirconia Hollow Ball. Zirconia Hollow Ball is

perfect for jewelry such as necklaces or other

accessories.

Hollow Balls for Jewelry

Zirconia Hollow Ball

Typical Applications

●Watch parts (case, band)

● Exterior parts for cellular phones

●Optical anti-reflection parts for image recognition

● Various machine parts

◆TZ-Black

Color stability can be achieved within a wide sintering

temperature range.

◆TZ-Blue

◆TZ-Yellow

Tosoh can develop special compounds to suit customers'needs.Please contact the nearest Tosoh sales office for moreinformation.

◆

◆ ◆ ◆ ◆

Sintering Temperature（℃）

Lightness（L）

024681012141618

1350 1400

　Lightness

1450 15001300

■

■ ■ ■ ■

Sintering Temperature（℃）

Density（g/cm3 ）

Density

5.9

6.0

6.1

1350 1400 1450 15001300

Molding method : Cold isostatic pressing

Molding pressure : 1,000kg/cm2

Holding time（sintering）: 2hrs

Eco-Products with Superior Grinding Efficiency

Zirconia Grinding and Dispersion Media YTZ®

YTZ® Grinding Media, produced from yttria-stabilized zirconia powder, exhibits high crushing strength,

fracture toughness and wear resistance. It is produced by Nikkato Corporation, one of Japan’s leading

ceramic manufacturers and a pioneer in the development of strength-enhanced zirconia ceramics. Starting

with the raw materials, YTZ® Grinding Media has been researched and examined from all possible

perspectives to produce superior quality.

Ceramic Media Properties

Due to the unique properties of ceramics, YTZ® Grinding

Media is resistant to rust and corrosion, and thus compatible

with water-based processing.

Additionally, YTZ® Grinding Media, produced from yttria-

stabilized zirconia “YSZ” powder, exhibits superior grinding

efficiency because of higher density, and has superior wear

resistance due to high crushing strength and fracture

durability.

YTZ® Qualities

YSZ powder used for materials is produced through the

latest hydrolysis process, known as the “Tosoh process” and

achieves consistent high quality.

YTZ® Grinding Media consists of high purity YSZ without any

kind of heavy metals. Moreover YTZ® Grinding Media

exhibits high wear resistance, which combined with its

smooth surface minimizes product contamination from both

media wear and mill parts.

Available Sizes

● Ball (φ, mm) 0.03(30micron), 0.05, 0.1, 0.2, 0.3, 0.4,

0.5, 0.65, 0.8, 1, 1.5, 2, 3, 5, 10, 15, 20,

25

Please contact the nearest Tosoh sales office for requests fordifferent sizes.

● Cylinder (inch) 3/8, 1/2

YTZ® Properties

Chemical Composition

Specific Density

Bending Strength

Hardness （Hv10）

Modulus of Elasticity

Fracture Toughness

ZrO2 , Y2O3

6.0 g/cm3

1200 MPa

1250

210 GPa

6.0 MPam0.5

【Media Shape】 【Surface Condition】

4 mm 200μm

〈Microscope〉 〈SEM〉

【Cross Section】 【Microstructure】

1mm 1μm

〈Microscope〉 〈SEM〉

YTZ® Grinding Media is almost perfectly spherical with

narrow size distribution. This provides precision in grinding

and dispersion.

YTZ® Grinding Media consists of extremely uniform fine

grains and has virtually no internal defects, resulting in

outstanding wear resistance. The risk of media chipping

as well as media replacement is minimized, resulting in

significant cost and waste reduction.

Typical Applications

Through its comprehensive quality system, YTZ® Grinding

Media has a solid reputation for the grinding and dispersion

of pharmaceutical and foodstuffs as well as those of ultra-

fine materials for electronic parts or inks.

●Dielectric, piezoelectric and magnetic materials

●Pigment, inks, dyes, paint and coating materials

●High purity advanced ceramic materials, frits and glazes

●Pharmaceutical, dental, cosmetic and foodstuffs

Grinding Efficiency and Wear Resistance

Environment, Safety andComprehensive Quality System

●YTZ® Grinding Media is produced under a stringent audit

system, and has obtained ISO9001 quality assurance

and ISO14001 environmental management system

certification.

●Traceability

Customers

YTZ¨

Zirconia Powder

YTZ® Grinding Media can be

completely traced from raw

materials to the finished

products.

Media Materials

Specific Surface Area of BaTiO3 （m2 /g）

YTZ¨ Mg-PSZ Al2O3 Zircon Glass YTZ

¨ Mg-PSZ Al2O3 Zircon Glass

Media Materials

0

Wear Loss of Media （％）

0

1

2

3

4

2

4

6

8

10

【Grinding Efficiency】 【Wear Resistance】

The test data above is a result of wet milling BaTiO3 powder with a starting surface area of 1.8m2/g. Grinding wasconducted with several types of media in a vertical sand mill over a set period of time. As can be seen, YTZ® hassuperior grinding efficiency with the highest wear resistance. The highest surface area of the ground material wasachieved with YTZ® over the same period of time under identical conditions. This is a clear indication of the highmilling efficiency that YTZ® provides.

YTZ®is a trademark of Nikkato Corporation.

The information provided and recommendations made herein pertain solely to matters of composition of the

products based on the test believed to be reliable. The accuracy of this information is not guaranteed. Depending

on the measurement methods or instruments, the result may vary from information provided herein. Since the

purchaserÕs actual use of the products is beyond the control of Tosoh Corporation and its related, subsidiary and

affiliated companies (collectively, Òrelated companiesÓ), Tosoh Corporation and its related companies are neither

responsible nor liable for results obtained from the use of the products. Tosoh Corporation and its related

companies make no representations or warranties as to the appropriateness of the products for any use intended

or made by the purchaser. Each purchaser must conduct its own testing, safety and regulatory evaluation(s).

Printed in Japan 3901GX- 002C

TOSOH CORPORATIONAdvanced Ceramics Department

3-8-2, Shiba, Minato-ku, Tokyo 105-8623, Japan

Tel : +81-3-5427-5170 Fax : +81-3-5427-5217

E-mail : zirconia@tosoh.co.jp

TOSOH USA, INC.3600 Gantz Road

Grove City, OH 43123-1895 USA

USA Toll Free : +1-866-844-6953 Fax : +1-614-875-8066

E-mail : info.tusa@tosoh.com

TOSOH EUROPE B.V.Crown Building-South, Hullenbergweg 359

1101 CP Amsterdam Z.O., The Netherlands

Tel : +31-20-5650010 Fax : +31-20-6915458

E-mail : info.tse@tosoh.com

Visit us at www.tosoh.com/zirconia