Zirconium Oxide Material Properties
Zirconium Oxide (ZrO2), also known as Zirconia, is a ceramic highly resistant to corrosion, abrasion, and stress from repetitive collisions due to the properties of corrosion resistance, heat resistance and high hardness, durability, and strength. Zirconia Oxide has the highest strength and toughness at room temperature of all the advanced ceramic materials. These properties make Zirconium Oxide a good selection for grinding and milling and the medical industry due to high purity and strength.
Applications for precision balls include: medical, pumps, valves, flow meters, metrology instrumentation, bearings, electronics
Zirconium Oxide
| PHYSICAL PROPERTIES | |
|---|---|
| chemical composition | ZrO2 + Y2O3 |
| bulk density | 6.05 g/cm3 |
| apparent porosity | 0.5> % |
| MECHANICAL PROPERTIES | |
| Modulus of rupture, RT | 1080 MPa |
| Young’s modulus | 205 GPa |
| Poisson’s Ratio | 0.31 |
| Hardness, Hv | 12.3 GPa |
| Fracture Toughness | 6.0 MPa√m |
| THERMAL PROPERTIES | |
| Thermal expansion coefficient | 10.5 x10-6/K |
| Thermal conductivity RT | 3.8 W/m•K |
| ELECTRICAL PROPERTIES | |
| Electrical resistivity 50 °C – 200 °C | 1012 Ω·cm |
| Dielectric constant, 1 Mhz | 15.0 |
