| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem wherein a conventional orange-colored zirconia sintered compact has a strong beige-like tone (brownish tone), has an insufficient balance between brightness and hue and does not sufficiently exert luxury texture inherent in zirconia. <P>SOLUTION: The orange-colored zirconia sintered compact comprises: 2-5 mol% Y<SB>2</SB>O<SB>3</SB>as a stabilizer; ≤3 wt.% praseodymium oxide, or ≤3 wt.% in total of erbium oxide and/or terbium oxide as a colorant; and <0.5 wt.% Al<SB>2</SB>O<SB>3</SB>. The zirconia sintered compact has a value V of 6-8, a hue H of 1Y-2Y and chroma C of 5-9 in the Munsell color system, has a sintered density of ≥6.02 g/cm<SP>3</SP>, exerts a luxury texture and a pearl-like gloss and has an orange color not tinged with beige (brown). <P>COPYRIGHT: (C)2011,JPO&INPIT |
