1. Key Laboratory of New Processing Technology for Nonferrous Metal & Materials, Ministry of Education, Guilin, China
2. College of Materials Science and Engineering, Guilin University of Technology Guilin, Guilin, Guangxi, China
3. Guangxi Key Laboratory of Superhard Material, National Engineering Research Center for Special Mineral Material, China Nonferrous Metal (Guilin) Geology and Mining Co., Ltd, Guilin, Guangxi, China