The hardness of industrial ceramics is mostly above 1500HV (Vickers hardness), among which alumina ceramics can reach a hardness of level 9 (Mohs hardness), second only to diamond. Specifically, the Vickers hardness of zirconia ceramics is 12.7GPa and the Mohs hardness is 8.5-9.1.
Hardness of different types of industrial ceramics
Alumina ceramics: Its hardness can reach level 9 (Mohs hardness), second only to diamond, and is suitable for high wear environments.
Zirconia ceramics: Its Vickers hardness is 12.7GPa and the Mohs hardness is 8.5-9.1, suitable for applications requiring high strength and high hardness.
