Unlike other ceramic material, zirconium oxide (ZrO2 – also known as zirconia) is a material with very high resistance to crack propagation. Zirconium oxide ceramics also have very high thermal expansion and are therefore often the material of choice for joining ceramic and steel.
Properties of Zirconium Oxide (ZrO2)
* High thermal expansion (α=11 x 10-6/K, similar to some types of steel)
* Excellent thermal insulation/low thermal conductivity (2.5 to 3 W/mK)
* Very high resistance to crack propagation, high fracture toughness (6.5 to 8 MPam1/2)
* Ability to conduct oxygen ions (used for the measurement of oxygen partial pressures in lambda probes)
* Excellent thermal insulation/low thermal conductivity (2.5 to 3 W/mK)
* Very high resistance to crack propagation, high fracture toughness (6.5 to 8 MPam1/2)
* Ability to conduct oxygen ions (used for the measurement of oxygen partial pressures in lambda probes)
Properties:
1. High Thermal Expansion
2. Excellent Thermal Insulation; low thermal conductivity
3. High resistance to crack propagation,high fracture toughness
4. Ability to conduct oxygen ions
5. Low thermal conductivity
2. Excellent Thermal Insulation; low thermal conductivity
3. High resistance to crack propagation,high fracture toughness
4. Ability to conduct oxygen ions
5. Low thermal conductivity
Features:
1) A variety of specifications available.
2) Satisfy various technical request
3) Lower medium spoilage
4) Good insulation performance and high temperature resistance
5) Stiffness texture
6) Used in all electric products, electric heating products and wear resistant machinery parts.
7) OEM, ODM and OBM are welcomed
3) Lower medium spoilage
4) Good insulation performance and high temperature resistance
5) Stiffness texture
6) Used in all electric products, electric heating products and wear resistant machinery parts.
7) OEM, ODM and OBM are welcomed
Ceramic material composition:
· 95%–99.99% Alumina (Al2O3)
· Silicon Carbide · Silicon Nitride
· TTZ: Magnesia partially stabilized Zirconia (ZrO2)
· YTZP: Yttria partially stabilized Zirconia (ZrO2)
· ZDY: Yttria fully stabilized Zirconia (ZrO2)
· TTZ: Magnesia partially stabilized Zirconia (ZrO2)
· YTZP: Yttria partially stabilized Zirconia (ZrO2)
· ZDY: Yttria fully stabilized Zirconia (ZrO2)
Zirconia Ceramic Properties:
|
|
Item
|
Value
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ZRO2
|
94.9%
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Y2O3
|
5.4%
|
Hardness(HRA)
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88-90
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Density(g/cm3)
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5.5-6.05
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Flexural strength (MPA)
|
1100
|
Young’s Modulus (Gpa)
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220
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Thermal Expansion Coefficient(20-1000℃) (×10-6/K)
|
6.5-11.2
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Flexural Toughness(Mpa m1/2)
|
12
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