Affiliation: | 1. National Engineering Laboratory for Vacuum Metallurgy (Kunming University of Science and Technology), Kunming 650093, China; 2. State Key Laboratory Breeding Base of Complex Non-ferrous Metal Resources Clear Utilization (Kunming University of Science and Technology), Kunming 650093, China; 3. Key Laboratory for Nonferrous Vacuum Metallurgy of Yunnan Province (Kunming University of Science and Technology), Kunming 650093, China |