1. Shenyang National Laboratory for Materials Science
2. Institute of Metal Research
3. Chinese Academy of Sciences
4. Shenyang 110016
5. China
6. Institute of Rare and Scattered Elements
7. College of Chemistry
8. Liaoning University
9. Shenyang 110036
10. State Key Laboratory of Reliability and Intelligence of Electrical Equipment
11. Hebei University of Technology
12. Tianjin 300401