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What's the difference between Zirconia, Alumina, and Zirconia Toughened Alumina (CeramAlloy)?

July 5, 2023

While Zirconia has the highest fracture toughness of all the oxide monolith ceramic materials, Alumina is one of the most cost effective ceramic materials yet exhibiting very high hardness, thermal stability and favourable electrical properties.  ZTA is a composite material based on Alumina and Zirconia and therefore combining to a certain extent the favourable properties of the two main constituents. So  ZTA will retain the very high hardness of Alumina but also show an increase in fracture toughness and bending strength owing to its Zirconia component so a true “best of both worlds”.