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Fine Ceramic Materials

High-Purity Zirconia

We provide zirconia powders of high-purity and high-quality, that are manufactured by hydrolysis method.
Amongst other fine ceramics, zirconia ceramic has various features such as excellent flexural strength, toughness and wear resistance, and also oxygen-ionic conductivity.

Typical grades

Partially Stabilized Zirconia

KZ-3YF type NF-S

These are zirconia powders made of Y2O3 of 3mol% that are uniformly dispersed and dissolved. A sintered body which can be sintered in a low temperatures, and has a great low temperature degradation. It is mainly used as a raw material for ferrules and sleeves. It can be ready for user by injection molding or extrusion molding.

KZ-3YF(SD) type T-D

This is a binder added type, suitable for press molding and CIP molding. It is also suitable for manufacturing thick-walled products, thanks to its small specific surface area and great formability.
In addition, it is characterized as generating fewer chippings while processing molded bodies.

Unstabilized zirconia


This is high-purity zirconia powder without stabilizing agents. It has a high-refractive ratio and can be used as a refractive ratio adjuster for optical lenses. It is also used as an additive for other materials, such as electric components and ceramic substrates.

Product line-up characteristics example
- (Partially or Fully) Stabilized Zirconia

Partially Stabilized Zirconia Partially Stabilized Zirconia
(With binders)
Fully stabilized
Grades KZ-3YF type C KZ-3YF type NF-S KZ-3YF(SD) type T-D KZ-8YF
Powder characteristics
Y2O3(mol%) 5.4 5.8 5.4 13.3
Al2O3(wt%) 0.25 0.25 0.25 0
Specific surface area(m2/g) 9 15 8 2-15
Characteristics of sintered substance (at 1450℃)
Sintered density(g/cm3) 6.07 6.07 6.07 5.9
Flexural strength (MPa) 1000 1000 1000 250
Hardness(GPa) 12.5 12.5 12.5 12.5
Molding methodology Injection, extrusion, and casting Injection, extrusion Die-press, CIP Injection, extrusion, and casting

The above are representative values and cannot be guaranteed.

- Unstabilized zirconia

Grades KZ-0Y KZ-0Y-L KZ-0Y-LSF
Y2O3(mol%) 0 0 0
Powder characteristics
ZrO2(wt%) 99.9 99.9 99.9
Al2O3(wt%) 0.001 0.001 0.001
SiO2(wt%) 0.01 0.01 0.01
TiO2(wt%) 0.005 0.005 0.005
Fe2O3(wt%) 0.005 0.005 0.005
Specific surface area(m2/g) 5 10 10
D50(μm) 17 17 0.2
Primary particle size (nm) 150-250 80-120 80-120
Usage examples Vapor deposition materials Electric Components Electric Components

The above are representative values and cannot be guaranteed.

Technological Sales Group, Sales Department

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