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
*values are for guidance only