Alumina/zirconia ceramics and method of producing the same

Details Alumina/zirconia ceramics and method of producing the same Alumina/zirconia ceramics and method of producing the same

2008-07-15

2008-07-15

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

Refractory

C264S604000, C264S663000

Reexamination Certificate

active

07399722

ABSTRACT:
Composite ceramics having a high strength, a high toughness and an excellent abrasion resistance, and a method of producing the same. The composite ceramics comprises 10 to 30 mass % of a zirconia crystal phase including Ce-stabilized zirconia crystal particles which contain CeO2in an amount of 9 to 12 mol % and Y-stabilized zirconia crystal particles which contain Y2O3in an amount of 2.8 to 4.5 mol %; and 70 to 90 mass % of an alumina crystal phase, the zirconia crystal phase having an average crystal particle size of not larger than 1 μm.

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