| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a zirconia-alumina-based ceramic having excellent wear resistance in addition to high strength and high toughness and a method of manufacturing the same. <P>SOLUTION: The zirconia-alumina-based ceramic comprises 67-89.5 mass% zirconia crystal phase containing 8-12 mol% CeO<SB>2</SB>, 10-30 mass% alumina phase and 0.5-3 mass% zinc oxide and contains a needle crystal deposited by dissolving a part of CeO<SB>2</SB>and zinc oxide in alumina to form a solid solution and the average crystal diameter of the zirconia crystal phase and alumina phase is ≤1 μm. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
