Zirconium Oxide Ceramics
ZrO2 Zirconia Ceramic Components

Zirconium Oxide Ceramics

Zirconium Oxide (ZrO2 - also known as zirconia) is a material with very high resistance to crack propagation. Zirconia also has very high thermal expansion and is therefore often the material of choice for joining ceramic and steel. Another outstanding property combination is the very low thermal conductivity and high strength. Zirconium oxide ceramics are used, among other applications, as tools for wire forming, as auxiliaries in welding processes, as insulating rings in thermal processes.

Main Properties of Zirconium Oxide Ceramics
 
 Item Unit Z95
 Type - Yttria Stabilized
 Density g/cm3 5.95
 Color - white
 Water Absorption % 0
 Young Modulus Gpa 205
 Vickers Hardness Gpa 12
 Compressive Strength Mpa  2200
 Flexural Strength Mpa  900
 Thermal Conductivity W/m.K 2.20
 Thermal Shock Resistance  Δ(°C)  280 - 350
 Max. Working Temp. °C 850
 Volume Resistivity Ω ·cm > 10^12
 Dielectric Constant 26 
 Dielectric Strength kV/mm
* Tests under room temperature environment;
* The above information is offered for comparison only. Exact
properties will vary depending on the manufacturing method
Typical Applications of Zirconium Oxide Ceramics
 
- Insulating rings in thermal processes
- Precision shafts and axles in high wear environments
- Wear resistance pads
- Thermocouple protection tubes
- Sandblasting nozzles
- Refractory material
- Extrusion dies
- Bushings and caps
- Fiber optic ferrules and sleeves
- Knives and blades
- Fuel cell parts
- Bearings & rollers
- Welding nozzles & pins
- Laser parts
- Gas igniters
- Electric insulator
- Ceramic guiders
- Oxygen sensors
- Medical and surgical component
- Mechanical seals