Ga-Sn合金液态结构研究  

Study on liquid structure of Ga-Sn alloys

作　　者：张强[1] 陈辉[1,2] 秦敬玉[1] 王卫健[3] 刘芳 周梅英 崔希林 邢泽学 ZHANG Qiang1;CHEN Hui1,2;QIN Jing-yu1;WANG Wei-jian3;LIU Fang3;ZHOU Mei-ying3;CUI Xi-lin3;XING Ze-xue 3(1. School of Materials Science and Engineering, Shandong University, Jinan 250061, Shandong, China;2. School of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, Shandong, Chinas3. [）ong＇e ahua Medical Technology Co. Ltd., Liaocheng 252200, Shandong, Chin)

机构地区：[1]山东大学材料科学与工程学院,山东济南250061 [2]聊城大学材料科学与工程学院,山东聊城252000 [3]东阿阿华医疗科技有限公司,山东聊城252200

出　　处：《金属功能材料》2018年第4期13-16,共4页Metallic Functional Materials

基　　金：国家自然科学基金项目资助(51571132)

摘　　要：采用分子动力学计算方法对包括共晶成分Ga_（91.6）Sn_（8.4）在内的GaxSn100-x合金以及三元共晶合金Ga_（76）In_（14）Sn_（10）的液态结构进行了分析。结果表明,液态GaxSn100-x合金中异类原子之间呈现排斥行为,共晶合金的液体结构没有呈现出特异性;三元共晶合金Ga_（76）In_（14）Sn_（10）的液体结构与二元共晶合金Ga_（91.6）Sn_（8.4）的相似,In的引入使结构更加趋于无序化,分析认为这是导致熔点进一步降低的原因。同时计算了几种液态合金的扩散系数。Molecular dynamics simulations were performed to investigate the liquid structure of GaxSn100-xalloys including the binary eutectic Ga_（91.6）Sn_（8.4） composition and the ternary eutectic alloys Ga_（76）In_（14）Sn_（10）.The results showed that in the liquid state,unlike atoms of GaxSn100-x,tend to repulse each other,and that the eutectic Ga_（91.6）Sn_（8.4） alloy has similar short-range order with its neighbour alloys.In the liquid ternary eutectic Ga_（76）In_（14）Sn_（10） alloy unlike atoms behave likely as the binary Ga-Sn alloys,furthermore,the introduction of In into the binary Ga-Sn alloy leads to more disorder liquid structure,which may be the structural respect to the melting point decrease.

关 键 词：Ga-Sn基合金 液态结构 分子动力学模拟 

分 类 号：TG111.4[金属学及工艺—物理冶金]