高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (9): 1263.

• 论文 •    下一篇

EuI2-RbI二元体系相图

王林同, 王世华, 赵新华   

  1. 北京师范大学化学系, 北京, 100875
  • 收稿日期:1993-09-01 修回日期:1994-06-01 出版日期:1994-09-24 发布日期:1994-09-24
  • 通讯作者: 王世华.
  • 作者简介:王林同,男,28岁,硕士研究生.
  • 基金资助:

    国家自然科学基金;中国科学院长春应用化学研究所稀土开放实验室资助

Phase Diagram of EuI2-RbI Binary System

WANG Lin-Tong, WANG Shi-Hua, ZHAO Xin-Hua   

  1. Department of Chemistry, Beijing Normal University, Beijing, 100875
  • Received:1993-09-01 Revised:1994-06-01 Online:1994-09-24 Published:1994-09-24

摘要: 用差热分析和X射线粉末衍射法研究了EuI2-RbI二元体系相图。表明该体系是一个有4个化合物(RbEu2I5,RbEuI3,Rb3EuI5,Rb4EuI6)生成的复杂低共熔体系,其中RbEu2I5和RbEuI3为固液同组成化合物,Rb3EuI5和Rb4EuI6为固液异组成化合物。初步确定Rb3EuI5为立方晶系:a=1.0124(1)nm;Rb4EuI6为四方晶系:a=1.3719(5)nm,c=0.6458(5)nm.

关键词: 二元体系, 相图, X射线粉末衍射

Abstract: The phase diagram of EuI2-RbIbinary system has been studied by DTAand X-ray powder diffraction.It is a complicated eutectic system with four compounds─two congruent melting compounds RbEu2I5 and RbEuI3 and two incongruent melting compounds Rb3EuI5 and Rb4EuI6.The structure of Rb3EuI5 belongs to a cubic system with a=1.0124(1)nm, and Rb4EuI6 belongs to a tetragonal system with a=1.3719(5)nm, c=0.6458(5)nm.

Key words: Binary system, Phase diagram, X-ray powder diffraction

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