Patent ID: 8685279
Filing Date: 2014-04-01
Classification: C04B,C09K,H01L,Y10T

Abstract:
1. A method of manufacturing sialon phosphor, comprising: a step of mixing silicon-containing material, aluminum-containing material, and raw material including M1 (one or more types of elements selected from a group consisting of Li, Mg, Ca, Sr, Y, and lanthanide metal (except for La and Ce)), raw material including M2 (one or more types of elements selected from Ce, Pr, Eu, Tb, Yb, and Er), and previously-synthesized α-type sialon phosphor to prepare granulated powders; and a step of heating the powders in a nitrogen gas atmosphere at 1500 to 2100 degrees C. to obtain α-type sialon phosphor, said step of preparing granulated powder includes: mixing said raw material, solvent, and a binder to prepare slurry, recovering said slurry by a spray drier to make granulated powder, and removing the binder from said recovered granulated powder.