abstract |
PROBLEM TO BE SOLVED: To provide a high strength and high toughness zirconia sintered material whose properties are not deteriorated even in a humid environment. SOLUTION: The zirconia sintered material of the present invention is such that zirconia containing 8 to 15 mol% of CeO 2 and zirconia containing 2 to 5 mol% of Y 2 O 3 are dispersed, and the CeO 2 is dispersed. And the volume ratio of zirconia containing Y 2 O 3 to 9: 1 to 6: 4. The sintered material can further contain 20 vol% or less of Al 2 O 3 and / or 0.01 to 3.0 vol% of MgO or CaO. [Selection diagram] None |