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Terms and Conditions of Sale

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Zirconia 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 environmentally beneficial products.

A business unit within its Specialty Materials Division, Tosoh Corporation’s zirconia powder production capacity ranks as the world’s largest.

Tosoh’s TZ Series of yttria stabilized zirconia powders is well known for its consistency and high quality. Zirconia injection molding compounds, injection molded components and YTZ® Grinding Media complete the basic product offering.

Tosoh also offers zirconia compounds for injection molding (using its TZ-3Y-E zirconia powder), developed based on our proven experience in manufacturing zirconia injection components (ferrule blanks).

For more information please browse the tabs below, or, contact us. to inquire on grades that you require for your needs but may not be listed below. Please note that not all grades listed here may be available to your region. Please inquire via our Contact Form or get in touch with us by phone or email.

Tosoh Zirconia Powders

Legend for Grade Names

< Example >
TZ	-	3Y	-	S	-	20A	B	-	E
		I		II		III	IV		V

I:	mol % of yttria, where "3Y" would be 3 mol% Y₂O₃
II:	"S" for easy moldability grades
III:	ATZ grades, where "20A" would be 20 wt% alumina
IV:	binder grades, where "B" would be binder 3% grades, and "BC" would be binder 5% grades
V:	"E" for easy sintering grades


TZ-3Y-E, TZ-3YB-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 including materials for industrial parts and everyday products.
POWDER CHARACTERISTICS	TZ-3Y-E, TZ-3YB-E
Y₂O₃ (mol%)	3
Actual Partical Size (µm)	0.04 (40nm)
Y₂O₃ (wt%)	5.2 ± 0.5
HfO₂ (wt %)	< 5.0
Al₂O₃ (wt %)	0.1 ~ 0.4
SiO₂ (wt %)	≦ 0.02
Fe₂O₃ (wt %)	≦ 0.01
Na₂O (wt %)	≦ 0.04
Pigment (wt %)	-
Specific Surface Area (m²/g)	16 ± 3

TYPICAL PROPERTIES OF SINTERED BODY
Density (g/cm³)	6.05
Bending Strength R.T. (MPa)^*1	1,200
Hardness (Hv 10)^*2	1,250

*1: JIS R1601 (3-point bending test)
*2: JIS R1610 (loads: 98.07N)
*Above is typical data and not guaranteed


TZ-3YS-E, TZ-3YSB-E, TZ-3YSB-C
S grades have a smaller surface area that contributes to a smooth flow for the compound or slurry in injection molding, tape casting, and other molding methods. S grades are highly recommended for producing large parts by a mechanical press or CIP.
POWDER CHARACTERISTICS	TZ-3YS-E, TZ-3YSB-E, TZ-3YSB-C
Y₂O₃ (mol%)
Actual Partical Size (µm)	0.09 (90nm)
Y₂O₃ (wt%)	5.2 ± 0.5
HfO₂ (wt %)	< 5.
Al₂O₃ (wt %)	≦ 0.1 ~ 0.4
SiO₂ (wt %)	≦ 0.02
Fe₂O₃ (wt %)	≦ 0.01
Na₂O (wt %)	≦ 0.06
Pigment (wt %)	-
Specific Surface Area (m²/g)	7 ± 2

TYPICAL PROPERTIES OF SINTERED BODY
Density (g/cm³)	6.05
Bending Strength R.T. (MPa)^*1	1,200
Hardness (Hv 10)^*2	1,250

*1: JIS R1601 (3-point bending test)
*2: JIS R1610 (loads: 98.07N)
*Above is typical data and not guaranteed


Zpex^® & Zpex Smile^®
Dental restorations with the natural look and feel of real teeth can be produced with Zpex. High all light transmittance in addition to superior hydrothermal aging resistance. Translucency Aging Property (140ºC in water x 25 hr)

High all light transmittance by improving the aggregation of particles


POWDER CHARACTERISTICS	Zpex
Y₂O₃ (mol%)	3
Actual Partical Size (µm)	0.04 (40nm)
Y₂O₃ (wt%)	5.35 ± 0.2
HfO₂ (wt %)	< 5.0
Al₂O₃ (wt %)	≦ 0.1
SiO₂ (wt %)	≦ 0.02
Fe₂O₃ (wt %)	≦ 0.01
Na₂O (wt %)	≦ 0.04
Pigment (wt %)	-
Specific Surface Area (m²/g)	13 ± 2

TYPICAL PROPERTIES OF SINTERED BODY
Density (g/cm³)	6.08
Bending Strength R.T. (MPa)^*1	1,100
Hardness (Hv 10)^*2	1,250

*1: JIS R1601 (3-point bending test)
*2: JIS R1610 (loads: 98.07N)
*Above is typical data and not guaranteed

≦ 0.02

13 ± 3


Tosoh is utilizing powder technologies in the field of the high strength and high fracture toughness zirconia to supply fully stabilized zirconia powder for solid oxide fuel cell (SOFC). High-purity Tosoh powder provides sintered bodies which have superior electric properties. Tosoh powder has superior sintering properties and provides sintered bodies which have uniform grains.

POWDER CHARACTERISTICS	TZ-8Y	TZ-8YS	TZ-10YS
Y₂O₃ (mol%)	8		10
Specific Surface Area (m²/g)	16±3	7±2	6±2
Binder (Approx. wt%)	-
Appearance	Granule	Granule	Granule

TYPICAL PROPERTIES OF SINTERED BODY	TZ-8Y	TZ-8YS	TZ-10YS
Density (g/cm³)	5.90		5.80
Bending Strength R.T. (MPa)^*1	300		200
Hardness (Hv 10)^*2	1,250
Electric Resistance (Ω·cm) at 800ºC^*3	19.8	20.3	27.3
Electric Conductivity logσ(S/cm) at 800ºC^*3	-1.30	-1.31	-1.44

*1: JIS R1601 (3-point bending test)
*2: JIS R1610 (Loads: 98.07N)
*3 : 4-terminal method by direct current
*Above is typical data and not guaranteed.


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 in high strength, high water resistance applications.

POWDER CHARACTERISTICS	TZ-3Y20A	TZ-3Y20AB	TZ-3YS20A	TZ-3YS20AB
Y₂O₃ (mol%)	3
Specific Surface Area (m²/g)	15±3		7±2
Binder (Approx. wt%)	-	3	-	3
Appearance	Granule		Granule

TYPICAL PROPERTIES OF SINTERED BODY	TZ-3Y20A	TZ-3Y20AB	TZ-3YS20A	TZ-3YS20AB
Density (g/cm³)	5.50
Bending Strength R.T. (MPa)^*1	2,000
Hardness (Hv 10)^*2	1,400

*1: JIS R1601 (3-point bending test)
*2 : JIS R1610 (Loads: 98.07N)
*Above is typical data and not guaranteed.

Ceramic Materials - Zirconia

Zirconia is a unique advanced ceramic - a chemical compound having the formula ZrO2.

Tosoh Zirconia Powders

Zpex® & Zpex Smile®

Dental restorations with the natural look and feel of real teeth can be produced with Zpex.

Zpex^® & Zpex Smile^®