Patent ID: 11920072
Assignee: NICHIA CORPORATION
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B  G  H | IPC B  C  G  H

Claim 3:
4. The method for producing a rare earth aluminate sintered body according to claim 1, wherein the rare earth aluminate is represented by the following formula (I):

(Ln1-nCen)3(Al1-mM1m)5kO12  (I)

wherein Ln represents at least one rare earth element selected from the group consisting of Y, La, Lu, Gd, and Tb, M1 represents at least one element selected from the group consisting of Ga and Sc, and parameters m, n, and k satisfy 0≤m≤0.02, 0.003≤n≤0.017, and 0.95≤k≤1.05, respectively.