Patent ID: 9695087
Date: 2017-07-04
CPC Classifications: B24D,C04B

Claim:
1. A sialon sintered body comprising: a β-sialon; and at least one polytype sialon selected from a group consisting of a 12H-sialon, a 15R-sialon, and a 21R-sialon, characterized in that: a Z value of the β-sialon expressed by Si a proportion [(I the sialon sintered body includes at least one rare earth element B selected from a group consisting of La and Ce, and at least one rare earth element C selected from a group consisting of Y, Nd, Sm, Eu, Gd, Dy, Er, Yb, and Lu, a molar ratio M a total content of the rare earth element B and the rare earth element C in the sialon sintered body is 0.8 mol % or greater and 4.0 mol % or less in terms of an oxide.