1. State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals
2. Lanzhou University of Technology
3. Lanzhou 730050
4. China
5. School of Science
6. State Key Laboratory of Solid Lubrication
7. Lanzhou Institute of Chemical Physics
8. Chinese Academy of Sciences
9. Lanzhou 730000
10. Basic Courses Department of Lanzhou Institute of Technology