1. State Key Laboratory of Advanced Metallurgy
2. University of Science and Technology Beijing
3. Beijing 100083
4. P. R. China
5. Beijing Institute of Radiation Medicine
6. State Key Laboratory of Powder Metallurgy
7. Central South University
8. Changsha 410083
9. Hunan Provincial Key Laboratory of Chemical Power Sources
10. Shanghai institute of Organic Chemistry
11. Chinese Academy of Sciences
12. Shanghai 200032
13. Beijing 100850