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ZIRCONIA POWDER, METHOD FOR PRODUCING ZIRCONIA POWDER, METHOD FOR PRODUCING ZIRCONIA SINTERED BODY, AND ZIRCONIA SINTERED BODY
Zirconia powder is provided which contains 2.5 to 3.5 mol% of yttria, has a specific surface area of 5 to 20 m<2>/g, and has crystal phases that include a monoclinic crystal phase percentage of 20 to 40% and a tetragonal crystal phase percentage of 60 to 80%. When the zirconia powder is molded under a mold pressure of 0.8 t/cm<2> and then sintered under a condition of 2 hours at 1450 DEG C to obtain a sintered body, the sintered body has crystal phases that include a monoclinic crystal phase percentage of 1 to 3%, a tetragonal crystal phase percentage of 77 to 94%, and a cubic crystal phase percentage of 5 to 20%.
提供一种氧化锆粉末，包含2.5mol％以上3.5mol％以下的氧化钇，比表面积为5m2/g以上20m2/g以下，晶相中所含的单斜相比例在20％以上40％以下，四方相比例在60％以上80％以下，在成型压力0.8t/cm2的成型压力下成型后，在1450℃、2小时的条件下烧结的烧结体的晶相中所含的单斜相比例在1％以上3％以下，四方相比例在77％以上94％以下，立方相比例在5％以上20％以下。
ZIRCONIA POWDER, METHOD FOR PRODUCING ZIRCONIA POWDER, METHOD FOR PRODUCING ZIRCONIA SINTERED BODY, AND ZIRCONIA SINTERED BODY
Zirconia powder is provided which contains 2.5 to 3.5 mol% of yttria, has a specific surface area of 5 to 20 m<2>/g, and has crystal phases that include a monoclinic crystal phase percentage of 20 to 40% and a tetragonal crystal phase percentage of 60 to 80%. When the zirconia powder is molded under a mold pressure of 0.8 t/cm<2> and then sintered under a condition of 2 hours at 1450 DEG C to obtain a sintered body, the sintered body has crystal phases that include a monoclinic crystal phase percentage of 1 to 3%, a tetragonal crystal phase percentage of 77 to 94%, and a cubic crystal phase percentage of 5 to 20%.
提供一种氧化锆粉末，包含2.5mol％以上3.5mol％以下的氧化钇，比表面积为5m2/g以上20m2/g以下，晶相中所含的单斜相比例在20％以上40％以下，四方相比例在60％以上80％以下，在成型压力0.8t/cm2的成型压力下成型后，在1450℃、2小时的条件下烧结的烧结体的晶相中所含的单斜相比例在1％以上3％以下，四方相比例在77％以上94％以下，立方相比例在5％以上20％以下。
ZIRCONIA POWDER, METHOD FOR PRODUCING ZIRCONIA POWDER, METHOD FOR PRODUCING ZIRCONIA SINTERED BODY, AND ZIRCONIA SINTERED BODY
氧化锆粉末、氧化锆粉末的制造方法、氧化锆烧结体的制造方法以及氧化锆烧结体
KUNISADA TAIICHI (author)
2021-11-09
Patent
Electronic Resource
Chinese
| European Patent Office | 2022
| European Patent Office | 2022
| European Patent Office | 2020
ZIRCONIA POWDER, METHOD OF PRODUCING ZIRCONIA SINTERED BODY, AND ZIRCONIA SINTERED BODY
| European Patent Office | 2022
ZIRCONIA POWDER, ZIRCONIA SINTERED BODY, AND METHOD FOR PRODUCING ZIRCONIA SINTERED BODY
| European Patent Office | 2022