Acta Metallurgica Sinica (English Letters) ›› 1998, Vol. 11 ›› Issue (5): 325-328.
• Research paper • Previous Articles Next Articles
Z.G. Liu, X.M. Luo, G.S. Guo and C.X. He G.B. Li and Q. Y. Zhang(Institute of Precious Metals, Kunming 650221, China)(Institute of Chemistry and Moleculars Engineering, Beliing University, Beijing 100871, China)