%0 Journal Article
%T Theoretical calculations of high-pressure melting curves of five metals<br>5种金属高压熔化曲线的理论计算
%A Xin Jie
%A Xiang Shi-Kai
%A Cai Ling-Cang
%A <br>辛杰
%A 向士凯
%A 蔡灵仓
%J 物理学报
%D 2012
%I 
%X Ab-initio calculation method is employed to determine the potential functions and the unknown parameters in pair-potential-based mean filed model for metals. Using the mean fields constructed from the potential functions, the vibration free volumes of atoms of metals Al, Cu, Ni, Na, and K at melting points are evaluated. The results indicate that the widely used hypothesis that the ratio of vibration free volume to the primitive cell volume of atoms in melting curve is a constant, is not correct. We provide a ratio model which can be usd to obtain much more accurate results of melting curve.
%K high-pressure melting
%K free volume theory<br>高压熔化
%K 自由体积理论
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=9903A07B9322879AF5CF818B36EB8BA0&yid=99E9153A83D4CB11&vid=1D0FA33DA02ABACD&iid=CA4FD0336C81A37A&sid=7DF06CB67D74A1B8&eid=7DF06CB67D74A1B8&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=38