1. Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), School of Material Science and Engineering, Northeastern University, Shenyang110819, P. R. China
2. School of Resource and Environmental Science, Wuhan University, Wuhan430072, P. R. China
3. Key Laboratory for Ecological Metallurgy of Multimetallic Mineral of Ministry of Education, School of Metallurgy, Northeastern University, Shenyang110819, P. R. China