Acta Metallurgica Sinica (English Letters) ›› 1989, Vol. 2 ›› Issue (8): 151-152.
• Research paper • Previous Articles
LIU Shuqi SUN Wenqing Deptrtment of Chemistry,Peking University,Beijing,China[Originally published in ACTA METALL SIN (CHINESE EDN) 24 (5) 1988 pp B376—B378,received 8 September 1987]