
Zirconia is a highly durable industrial ceramic known for its hardness, fracture toughness, and corrosion resistance, addressing the common brittleness of ceramics. Its unique crack propagation resistance and high thermal expansion make it ideal for bonding with metals like steel. Due to these unique properties, zirconia is sometimes referred to as "ceramic steel."
| Property | Zirconia |
|---|---|
| Chemical Formula | ZrO2 |
| Density | 6 gm/cc |
| Hardness | 13 GPa |
| Elastic Modulus | 220 GPa |
| Bending Strength | 1000 MPa |
| Compressive Strength | 5690 MPa |
| Poisson's Ratio | 0.31 |
| Fracture Toughness | 4 MPa m½ |
| Dielectric Strength | 11 ac V/mm |
| Dielectric Constant | 33 (@ 1 MHz) |
| Volume Resistivity | 1013 ohm-cm |
| Thermal Expansion Coefficient | 9.5 x 10-6/°C |
| Thermal Conductivity | 3 W/(m·K) |
| Specific Heat | 0.46 x103 J/(Kg·K) |
| Shock Resistance | 300 °C Diff. |
| Maximum Use Temperature | 1000 °C |
All properties are at room temperature unless otherwise noted. Engineering data is representative and not guaranteed.
ジルコニアは、硬度、破壊靭性、耐食性において優れた特性を持つ非常に強固な工業用セラミ ックであり、セラミックスの最も一般的な特性である脆さを解決します。 また、独特の亀裂伝播抵抗と高い熱膨張率によ
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