Patent ID: 9611427
Date: 2017-04-04
CPC Classifications: C09K,H01L

Claim:
1. A method for preparing a compound having a chemical formula of aY 2 O 3 .bAl 2 O 3 .cSiO 2 :mCe.nB.xNa.yP, wherein a, b, c, m, n, x and y are coefficients, wherein a is not less than 1 but not more than 2, b is not less than 2 but not more than 3, c is not less than 0.001 but not more than 1, m is not less than 0.0001 but not more than 0.6, n is not less than 0.0001 but not more than 0.5, x is not less than 0.0001 but not more than 0.2, and y is not less than 0.0001 but not more than 0.5, wherein the method comprises the steps of: weighing oxides of elements or materials which can generate oxides at high temperature by molar ratio as raw materials; and evenly mixing and then sintering the raw materials at 1200-1700° C. in a reducing atmosphere for 1-8 h.