[1] Kunming Univ Sci & Technol, Key Lab Nonferrous Vacuum Met Yunnan Prov, Kunming, Peoples R China
[2] kunming Univ Sci & Technol, State Key Lab Complex Nonferrous Met Resources Cle, Kunming, Peoples R China
[3] Kunming Univ Sci & Technol, Natl Engn Res Ctr Vacuum Met, Kunming, Peoples R China
[4] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming, Peoples R China