物理化学学报 >> 2007, Vol. 23 >> Issue (04): 614-616.doi: 10.3866/PKU.WHXB20070432

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CsF-RbF二元系相图

丁益民; 张婷婷; 刘旭; 陈念贻   

  1. 上海大学理学院化学系, 上海 200444
  • 收稿日期:2006-09-13 修回日期:2006-11-30 发布日期:2007-04-05
  • 通讯作者: 丁益民 E-mail:dingym@staff.shu.edu.cn

Phase Diagramof CsF-RbF System

DING Yi-Min; ZHANG Ting-Ting; LIU Xu; CHEN Nian-Yi   

  1. Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, P. R. China
  • Received:2006-09-13 Revised:2006-11-30 Published:2007-04-05
  • Contact: DING Yi-Min E-mail:dingym@staff.shu.edu.cn

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摘要： 采用支持向量机(SVM)-原子参数模式识别法, 对75个一价金属同阴离子卤化物二元体系固溶体形成规律进行了研究, 根据研究结果, 预测CsF-RbF体系应形成固溶体. 用差热分析法重新测定了该体系的相图, 结果表明, 该体系为液固相连续互溶, 没有最低点和最高点的固溶体体系, 与文献中的热力学计算结果一致.

关键词: 相图, DTA, CsF-RbF, 连续固溶体

Abstract: The data from 75 known phase diagrams of MX-M'X (X=F, Cl, Br, I; M and M' are monovalent metals) systems were processed by using the support vector machine-atomic parameter pattern recognition method. The regularity of the formation of solid solution in these systems was found. The mathematical model obtained predicted that the CsF-RbF system should form solid solution. The phase diagram of the CsF-RbF system was determined using differential thermal analysis. The results indicated that there was no temperature minimumeither in the solidus or in the liquidus and confirmed that the phase diagram was belonged to the continuous solid solubility system, which was in agreement with the computerized results of thermodynamics in the reference.

Key words: Phase diagram, DTA, CsF-RbF, Solid solubility