Phase equilibria of the La-Cu-Sn temary system at 473K
The isothermal section of the La-Cu-Sn ternary system at 473K have been investigated by means of X-ray powder diffraction(XRD)，optical microscopy(OM)，scanning electron microscopy(SEM)and differential thermal analysis(DTA)．It consists of 20 single-phase regions,43 two-phase regions and 24 three-phase regions．At 473 K，the existences of 11 binary compounds CuLa,Cu2La,Cu5La,Cu6La，Cu3Sn，Cu6Sn5，La5Sn3，La5Sn4，LaSh，La3Sn5，LaSh3 and 5 other ternary compounds CuLaSn，Cu2LaSn2，CuLa2Sn4，Cu5LaSn,Cu9LaSn4 have been confirmed．The maximum solid solubility of Cu in Cu2LaSh2 is about 7 at．％ Cu．A new ternary compound with atomic ratio close to Cu/La/Sn=1：3：4 has been found．The crystal structure of CuLa3Slh was determined and refined by means of Rietveld’s method，resulting Orthorhombic，Pd5Pu3 type，space group Cmcm．
金相图 X射线衍射 三元体系 相平衡
Yongzhong Zhan Haofeng Xie Jichao Jiang Yanfei Xu Ying Wang Yinghong Zhuang
Key Laboratory of Nonferrous MetalMaterials and New Processing Technology,Guangxi University,Ministr Key Laboratory of Nonferrous Metal Materials and New Processing Technology,Guangxi University,Minist
国内会议
长沙
英文
207-214
2008-11-01（万方平台首次上网日期，不代表论文的发表时间）