%0 Journal Article
%T Molecular dynamics study of the phase separation and diffusion in Lennard-Jones binary liquid<br>二元Lennard-Jones液体的相分离过程及其扩散性质的分子动力学研究
%A Li Mei-Li
%A Zhang Di
%A Sun Hong-Ning
%A Fu Xing-Ye
%A Yao Xiu-Wei
%A Li Cong
%A Duan Yong-Ping
%A Yan Yuan
%A Mu Hong-Chen
%A Sun Min-Hua
%A <br>李美丽
%A 张迪
%A 孙宏宁
%A 付兴烨
%A 姚秀伟
%A 李丛
%A 段永平
%A 闫元
%A 牟洪臣
%A 孙民华
%J 物理学报
%D 2008
%I 
%X Molecular dynamics (MD) simulation is performed to study the diffusion and phase separation process in binary Lennard-Jones (LJ) liquid. It is found that the growth of phase separation with temperature can be divided into two stages. The first is the fast-growth at high temperatures and the second is the steady-growth at low temperatures. Diffusion activation energy in the phase separation system is not a constant, but a function of temperature and follows the relation of E=a+bTc. The influence of the sizes of the components on the phase separation is also discussed. The results shows that the diffusivity increases when the component size decreases. This facilitates the phase separation.
%K 相分离
%K 扩散
%K 分子动力学模拟
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=B4F1B86D92D6DC5EDF2F2CF27F1D6061&yid=67289AFF6305E306&vid=11B4E5CC8CDD3201&iid=708DD6B15D2464E8&sid=ADDCBFD6534CC952&eid=47FFB1E871E0E613&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0