| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a zirconia powder for a colored zirconia sintered compact, with which variation in coloration and strength in the colored zirconia sintered compact is suppressed and the concern of the contamination caused by color migration in a production process is made unnecessary, and from which the zirconia sintered compact having uniform coloration and strength can be obtained; and to provide the zirconia sintered compact obtained by using the same. <P>SOLUTION: When a zirconia powder containing an Fe-Y multiple oxide as coloring agent is used, the problem of color migration in the production process of the sintered compact is avoided, and the coloration of the final sintered compact becomes uniform and the strength of the sintered compact is maintained. The zirconia powder containing 1.5-6.0 wt.% Y<SB>2</SB>O<SB>3</SB>and 0.0-1.0 wt.% Al<SB>2</SB>O<SB>3</SB>and the coloring agent containing 0.01-10 wt.% Fe-Y multiple oxide are preferably used, and preferable Fe-Y multiple oxide is FeYO<SB>3</SB>. <P>COPYRIGHT: (C)2008,JPO&INPIT |
