公开(公告)号：EP4458788A1

公开(公告)日：2024-11-06

申请号：EP22916122.9

申请日：2022-12-27

申请人： Tosoh Corporation

发明人： KAWAMURA, Kenta ,  HOSOI, Kohei ,  NAGAYAMA, Hitoshi

IPC分类号： C04B35/488 ,  C01G25/00 ,  C01G25/02 ,  C04B35/48

摘要： Provided is at least one of a zirconia sintered body, a raw material powder for the zirconia sintered body, a calcined body and a method for producing the sintered body. The zirconia sintered body does not exhibit a color derived from ceria and exhibits high impact resistance. The sintered body comprises zirconia and germanium oxide, the zirconia containing a stabilizing element, wherein Y/X is 0.35 or greater, and X+Y is 4.0 or less, where X is an amount of the stabilizing element in the zirconia expressed in mol%, and Y is an amount of the germanium oxide in the zirconia expressed in mol%.