1. College of Materials Science and Engineering Chongqing University Shapingba Chongqing China
2. Department of Metallurgical Engineering University of Utah Salt Lake CityUtah
3. State Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization Kunming University of Science and Technology Kunming China
4. National Engineering Laboratory for Vacuum Metallurgy Kunming China
5. Yunnan Provincial Key Laboratory for Nonferrous Vacuum Metallurgy Kunming China