Ag-Cu-Si合金系的两个变温截面  

Two Temperature Traverse Sections of Ag-Cu-Si Trinal System

作　　者：罗锡明[1] 刘泽光[1] 何纯孝[1] 郭根生[1] 陈登权[1] 

机构地区：[1]昆明贵金属研究所,中国昆明650221

出　　处：《贵金属》2000年第2期7-9,共3页Precious Metals

基　　金：云南省应用基础研究基金项目 !( 96E10 4M)

摘　　要：采用X -射线衍射、金相和DTA方法分析Si含量为 0～ 10wt%的Ag -Cu -Si三元系2个变温截面。结果表明 :在研究的Si含量范围内 ,相组成较复杂 ,但仅有二相区和三相区 ,未发现三元中间相。 2个伪二元合金系在 5 5 6℃和 471℃存在固相转变 ,且Cu3Si相的 η、η′和η″相同属正交晶系 ,其相变属于“位移型”相变 。Ag-Cu-Si trinal system with 0～10 wt% Si content has been investigated by XRD,metallography,and DTA.The results indicated that there were two-phase and three-phase regions only,was not any trinal intermediate phase in the investigated Si content range.Two binary pseudo-alloys took place solid-phase changes at 556℃ and 471℃ respectively. η,η′,and η″phases of Cu 3Si phase were orthorhombic and their phase changes were displacement types.

关 键 词：Ag-Cu-Si合金 变温截面 相组成 

分 类 号：TG146.32[一般工业技术—材料科学与工程]