Alumina/zirconia ceramics and method of producing the same
AssigneeKYOCERA Corporation
InventorsKunihide Shikata, Shugo Onitsuka, Yucong Wang, Hiroaki Seno
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Abstract
Alumina/zirconia ceramics containing Al2O3 in an amount of not less than 65 mass % and ZrO2 in an amount of 4 to 34 mass %, and further containing TiO2, MgO and SiO2. The ceramics effectively suppresses the growth of shape isotropic particles of alumina, suppresses the growth of zirconia particles, and has a high strength and a high hardness. Besides, the ceramics containing SrO features a high fracture toughness.
Claims12
Alumina/zirconia ceramics containing Al2O3 in an amount of not less than 65 mass % and ZrO2 in an amount of 4 to 34 mass %, and further containing TiO2, MgO and SiO2 in amounts of not smaller than 0.1 mass %, respectively, the total content of TiO2, MgO and SiO2 being not larger than 4.5 mass %.
Dependencies are inferred from the claim text.