Zirconia Ceramic
Properties of Zirconia
Zirconium oxide (Zirconia) is an extremely tough ceramic with a hardness of >9 Mohs which makes it an excellent material for extreme wear, high temperature, and harsh environment applications. Zirconia ceramics have remarkable properties of strength, hardness, and wear resistance in addition to withstanding attack from molten metal, organic solvents, acids, and alkalis. They can also withstand high temperatures for long periods even under severe mechanical stress. Typical Applications include volatile chemical solutions transportation, jet and diesel engine components, containers for molten metals, high-speed cutting tools, high-wear components, transistor insulators, dental implants, bearing balls, pump seals, and ball valves. Contact us for more info!
| Density, ρ | g/cm3 | 6.04 |
| Water Absorption | % @ room temperature (R.T.) | 0 |
| Hardness | Mohs | 6.5 |
| Hardness | Knoop (kg/mm2) | 1600 |
| Compressive Strength | MPa @ R.T. | 2500 |
| Fracture Toughness, KIc | MPa x m1/2 | 13 |
| Max. Use Temperature (in air) | ºC | 500 |
| Thermal Shock Resistance | ∆T (ºC) | 280-360 |
| Thermal Conductivity | W/m-K @ R.T. | 2.7 |
| Coefficient of Linear Thermal Expansion, αl | µm/m-ºC (~25ºC through ±1000ºC) | 11 |
| Dielectric Constant 1 MHz @ R.T. ASTM D150 26 @ 100kHz | 1 MHz @ R.T. | 26 @ 100kHz |
| Dielectric Strength | kV/mm | 9 |
| Electrical Resistivity | Ωcm @ R.T. | >104 |