METHOD FOR PRODUCING BETA-SIALON PHOSPHOR

摘要

Provided is a production method of a ²-sialon phosphor that europium ions are solid-solved in ²-sialon, including a mixing process for mixing raw materials of the ²-sialon phosphor; a burning process for burning the raw materials after the mixing process to form the ²-sialon phosphor; a HIP treatment process in which the ²-sialon phosphor after the burning process is subjected to a HIP treatment; an annealing process in which the ²-sialon phosphor after the HIP treatment process is subjected to an annealing treatment; and an acid treatment process in which the ²-sialon phosphor after the annealing process is subjected to an acid treatment. According to the production method of a ²-sialon phosphor, a ²-sialon phosphor excellent in luminescence intensity is obtained.