Final Structures of Crystallization of Liquid Copper Studied by Molecular Dynamics Simulation
作者机构：Laboratory of Internal Friction and Defects in SolidsInstitute of Solid State PhysicsChinese Academy of SciencesHefei 230031
出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)
年 卷 期：1999年第16卷第11期
页 面：850-852页
核心收录：
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
基 金：the National Natural Science Foundation of China under Grant No.19874067 the Foundation of the Chinese Academy of Sciences under Grant No.KJ952-J1-412
主 题：microstructure Molecular Copper
摘 要：Molecular dynamics simulation is performed to study the cooling rate effects on the resulting crystallization microstructure of bulk liquid copper(homogeneous nucleation).Our studies reveal that mixtures of the metastable hcp phase and most-stable fcc phase,in all sorts of proportion and in various forms such as layering and phase separation,can be obtained by controlling the cooling *** have also found that,below the glass forming critical cooling rate,the ratio of the number of fcc-type polyhedra to the number of hcp-type polyhedra at 0K decreases with increase of the cooling rate.
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