1. Key Laboratory for Nonferrous Vacuum Metallurgy of Yunnan Province, Kunming University of Science and Technology, Kunming, China
2. State Key Laboratory of Complex Non-ferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, China
3. National Engineering Research Center of Vacuum Metallurgy, Kunming University of Science and Technology, Kunming, China
4. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, China