机械合金化Cu＿（1－x）Sn＿x系的穆斯堡尔研究  

MOSSBAUER STUDY OF MECHANICALLY ALLOYED Cu_(1-X)Sn_x SERIES

作　　者：刘方新[1] 张道元[1] 王根苗[1] 李玉芝[1] 杨元政[1] 董远达[1] 

机构地区：[1]中国科学技术大学基础物理中心,中国科学技术大学物理系,中国科学技术大学结构分析开放研究实验室,中国科学院固体物理研究所

出　　处：《物理学报》1994年第2期327-331,共5页Acta Physica Sinica

基　　金：国家自然科学基金

摘　　要：利用机械合金化方法获得了几种铜－锡合金，特别是熔融法不易获得的，Ｘ射线衍射结果显示球磨使各样品纳米化，并形成包含确定合金相的固溶体，穆斯堡尔谱表明，各固溶体中除包含合金相外，还存在富锡相及富铜相，提出在机械合金化过程中，首先铜和锡纳米化，然后两种原子相互扩散形成包含合金相、富α－锡相和富ｆｃｃ铜相的固溶体。Several samples of Cu_(1-x)Sn_x series were obtained by mechanical alloying,inclu-ding n-Cu_6Sn_5 alloy which are difficult to prepare by melting method.XRD resultsshow that the solid solution with nanometer size is formed wbich including definitealloy phase in each ball milling sample.M6ssbauer spectra indicate that tlie Sn-rich-phase and the Cu-rich phase exist besides the alloy phase.We suggest that in theprocess of the ball milling,the crystallites of Cu and Sn are nanometerized,at first,and then the interdiffusion of the two kinds of atoms takes place and finaliy thesolid solution is formed including the alloy phase,the a-Sn-rich phase aild the fcc-Cu-rich phase。

关 键 词：机械合金化 铜锡合金 

分 类 号：TF125.211[冶金工程—粉末冶金]