Zirconia powder has the characteristics of high hardness, high-temperature resistance, chemical corrosion resistance, wear resistance, small thermal conductivity, strong thermal shock resistance, good chemical stability, outstanding composite material, etc. The properties of the material can be improved by combining nanometer zirconia with alumina and silicon oxide. Nano zirconia is not only used in structural ceramics and functional ceramics. Nano zirconia doped with different elements conductive properties, used in solid battery electrode manufacturing.
Physical properties
Very high melting point
Chemical stability at high temperatures
Low thermal expansion compared to metals
High mechanical resistance
Abrasion resistance
Corrosion resistance
Oxide ion conductivity (when stabilized)
Chemical inertia
Properties Type | Product types | ||||
Chemical Composition | Normal ZrO2 | High purity ZrO2 | 3Y ZrO2 | 5Y ZrO2 | 8Y ZrO2 |
ZrO2+HfO2 % | ≥99.5 | ≥99.9 | ≥94.0 | ≥90.6 | ≥86.0 |
Y2O3 % | ----- | ------ | 5.25±0.25 | 8.8±0.25 | 13.5±0.25 |
Al2O3 % | <0.01 | <0.005 | 0.25±0.02 | <0.01 | <0.01 |
Fe2O3 % | <0.01 | <0.003 | <0.005 | <0.005 | <0.01 |
SiO2 % | <0.03 | <0.005 | <0.02 | <0.02 | <0.02 |
TiO2 % | <0.01 | <0.003 | <0.005 | <0.005 | <0.005 |
Water Composition(wt%) | <0.5 | <0.5 | <1.0 | <1.0 | <1.0 |
L.O.I(wt%) | <1.0 | <1.0 | <3.0 | <3.0 | <3.0 |
D50(μm) | <5.0 | <0.5-5 | <3.0 | <1.0-5.0 | <1.0 |
Surface area(m2/g) | <7 | 3-80 | 6-25 | 8-30 | 8-30 |
Properties Type | Product types | ||||
Chemical Composition | 12Y ZrO2 | Yello Y stabilized ZrO2 | Black Y stabilized ZrO2 | Nano ZrO2 | Thermal spray ZrO2 |
ZrO2+HfO2 % | ≥79.5 | ≥94.0 | ≥94.0 | ≥94.2 | ≥90.6 |
Y2O3 % | 20±0.25 | 5.25±0.25 | 5.25±0.25 | 5.25±0.25 | 8.8±0.25 |
Al2O3 % | <0.01 | 0.25±0.02 | 0.25±0.02 | <0.01 | <0.01 |
Fe2O3 % | <0.005 | <0.005 | <0.005 | <0.005 | <0.005 |
SiO2 % | <0.02 | <0.02 | <0.02 | <0.02 | <0.02 |
TiO2 % | <0.005 | <0.005 | <0.005 | <0.005 | <0.005 |
Water Composition(wt%) | <1.0 | <1.0 | <1.0 | <1.0 | <1.0 |
L.O.I(wt%) | <3.0 | <3.0 | <3.0 | <3.0 | <3.0 |
D50(μm) | <1.0-5.0 | <1.0 | <1.0-1.5 | <1.0-1.5 | <120 |
Surface area(m2/g) | 8-15 | 6-12 | 6-15 | 8-15 | 0-30 |
Properties Type | Product types | |||
Chemical Composition | Cerium stabilized ZrO2 | Magnesium stabilized ZrO2 | Calcium stabilized ZrO2 | Zircon aluminum composite powder |
ZrO2+HfO2 % | 87.0±1.0 | 94.8±1.0 | 84.5±0.5 | ≥14.2±0.5 |
CaO | ----- | ------ | 10.0±0.5 | ----- |
MgO | ----- | 5.0±1.0 | ------ | ----- |
CeO2 | 13.0±1.0 | ------ | ------ | ------ |
Y2O3 % | ----- | ------ | ------ | 0.8±0.1 |
Al2O3 % | <0.01 | <0.01 | <0.01 | 85.0±1.0 |
Fe2O3 % | <0.002 | <0.002 | <0.002 | <0.005 |
SiO2 % | <0.015 | <0.015 | <0.015 | <0.02 |
TiO2 % | <0.005 | <0.005 | <0.005 | <0.005 |
Water Composition(wt%) | <1.0 | <1.0 | <1.0 | <1.5 |
L.O.I(wt%) | <3.0 | <3.0 | <3.0 | <3.0 |
D50(μm) | <1.0 | <1.0 | <1.0 | <1.5 |
Surface area(m2/g) | 3-30 | 6-10 | 6-10 | 5-15 |
The production of zirconia gemstones from zirconia powder is an important field of zirconia’s deep processing and application. The synthetic cubic zirconia is a hard, colorless, and optically flawless crystal. Because of its low cost, durable, and similar appearance to diamonds, cubic zirconia gemstones have been the most important substitutes for diamonds since 1976.
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