Zirconia Ceramic is usually doped with additions of some oxides (MgO, CaO,Y2O3) to make it more stable. Far now, the most widely used is Y2O3 stabilized Zirconia.Zirconia Ceramic is easier to machine than Alumina Ceramic because of the excellent fracture toughness at room temperature. The coefficient of thermal expansion is similar to steel, so it can be jointed to steel parts. Zirconia Ceramic has low thermal conductivity and superior wear resistance, it is electrical conductivity above 900Celsius.
Zirconia Ceramics can be made into different shapes e.g. rods, tubes, rings, plates, discs and other complex shapes according to customers' requirements with high precision.
Product Feature:
*Excellent fracture toughness
*High mechanical strength and high hardness
*Very good wear resistance
*High corrosion resistance
*Low thermal conductivity
*CTE in range of steel
Data Sheet for Material:
| Properties | Unit | Value |
| Color | - | White |
| Density | g/cm3 | 5.95-6.05 |
| Water Absorption | % | 0 |
| Moh's Hardness | - | 9 |
| Flexural Strength (@R.T.) | Mpa | 900 |
| Compressive Strength (@R.T.) | Mpa | 2200 |
| Thermal Conductivity (@R.T.) | W/m.k | 2.2 |
| Coefficient of Thermal Expansion (20-1000℃) | 10-6/℃ | 10.3 |
| Thermal Shock Resistance | △T(℃) | 280-350 |
| Max. Working Temperature (@R.T.) | ℃ | 850 |
| Volume Resistivity (@R.T.) | Ω.cm | 1012 |
| Dielectric Constant (1MHz, @R.T.) | - | 26 |
Application
Zirconia has been applied widely, the main applications include:
1. Wire forming/drawing dies
2. Ceramic valve components (balls, seats, liners)
3. Ceramic pump liners
4. Mechanical seals
5. Ceramic cutting blades/knives
6. Grinding media
7. Thermal insulation components
8. Sandblasting nozzles
9. Medical and surgical component
10. Precision ceramic balls for bearings
