发明名称 |
SINTERED ZIRCONIA COMPACT, AND ZIRCONIA COMPOSITION AND CALCINED COMPACT |
摘要 |
When a cross-sectional area of each zirconia crystal grain is calculated in an image of a cross section of a zirconia sintered body; a converted crystal grain size of each zirconia crystal grain is calculated based on the cross-sectional area on the assumption that each zirconia crystal grain has a circular cross-sectional shape; the zirconia crystal grains are classified into a class of smaller than 0.4 µm, a class of from 0.4 µm to smaller than 0.7 µm, and a class of 0.76 µm or greater based on the converted crystal grain size; a total cross-sectional area of the zirconia crystal grains is calculated in each of the classes; and a rate of the cross-sectional area to a total cross-sectional area of all zirconia crystal grains whose cross-sectional area has been calculated is calculated in each class, the rate of the cross-sectional area of the zirconia crystal grains in the class of the converted crystal grain size of smaller than 0.4 µm ranges from 4% to 35%, the rate of the cross-sectional area of the zirconia crystal grains in the class of the converted crystal grain size of from 0.4 µm to smaller than 0.76 µm ranges from 24% to 57%, and the rate of the cross-sectional area of the zirconia crystal grains in the class of the converted crystal grain size of 0.76 µm or greater ranges from 16% to 62%. |
申请公布号 |
EP2975011(A1) |
申请公布日期 |
2016.01.20 |
申请号 |
EP20140765463 |
申请日期 |
2014.03.10 |
申请人 |
KURARAY NORITAKE DENTAL INC. |
发明人 |
YAMADA, YOSHIHISA;MATSUMOTO, ATSUSHI;ITO, YOSHIHISA |
分类号 |
C04B35/48;A61C13/083 |
主分类号 |
C04B35/48 |
代理机构 |
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