1. National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, and Grirem Advanced Materials Co., Ltd., Beijing, 100088, China
2. Sialon Group, National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044, Japan
3. College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China
4. College of Materials, Xiamen University, Xiamen, 361005, China