%0 Journal Article
%T STUDY OF THE SCALING LAW FOR VISCOSITY COEFFICIENTS IN SIMPLE MELTS<br>简单熔体粘滞系数的普适性标度关系
%A LI Guangxu
%A ZHENG Dingshan
%A XIAO Rongjun
%A GUO Jin
%A ZHU Zhengang
%A LIU Changsong
%A <br>黎光旭
%A 郑定山
%A 肖荣军
%A 郭进
%A 朱震刚
%A 刘长松
%J 金属学报
%D 2006
%I 
%X Employing a realistic many-body potentials for a series of simple melts, including Ag, Al, Au, Co, Cu, Mg, Ni, Pb, Pd, Pt, Rh and Si, and using the molecular-dynamics simulation the scaling laws of viscosity with different expressions of the reduction parameters were studied. The simulated results support the universal scaling laws proposed by Rosenfeld for transport coefficients in liquid metals. Following Dzugutov's method, a universal scaling relationship between the viscosity coefficient and excess entropy was obtained. In particular, it is found that there exists a link between the scaling law and the Arrhenius law, i.e., the excess entropy scaling law for the viscosity coefficient can be interpreted as a straightforward extension of the Arrhenius law.
%K scaling law
%K viscosity coefficient
%K excess entropy<br>标度关系
%K 粘滞系数
%K 过剩熵
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=733FB7365A9F1590&yid=37904DC365DD7266&vid=ECE8E54D6034F642&iid=59906B3B2830C2C5&sid=D45398EB9ED445AA&eid=F58A98E9A761BF85&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=16