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Ge—Si二元合金系的热力学
引用本文:李瑞青 周国治. Ge—Si二元合金系的热力学[J]. 北京科技大学学报, 1989, 11(3): 252-257
作者姓名:李瑞青 周国治
作者单位:北京有色金属研究总院(李瑞青),北京科技大学(周国治)
摘    要:利用作者提出的二元相图数据计算活度的计算机程序CABPD(Calculating Activities from Binary Phase Diagrains),计算得到此体系液相及固相的热力学性质。表明此体系液、固相都呈正偏差,可以表示为: L_(Gm)(L)=7125X_(Si)X_(Ge)(J/mol) L_(Gm)(S)=4808X_(Si)X_(Ge)(J/mol)

关 键 词:锗硅合金 二元系相图 热力学

Thermodynamics of Ge-Si Alloy System
Li Ruiqing Chou Kuozhi. Thermodynamics of Ge-Si Alloy System[J]. Journal of University of Science and Technology Beijing, 1989, 11(3): 252-257
Authors:Li Ruiqing Chou Kuozhi
Affiliation:Li Ruiqing Chou Kuozhi
Abstract:No experimental therniodynamic properties of Ge-Si systemhave been reported in literature. But the phase diagram has been measured exactly many times. In this paper the thermody namic properties of Ge-Si system have been calculated from phase diagram by using computer program CABPD (Calculating Activities from Binary Phase Diagrams) presented by the author in a previous paper. The excess free energies in liquid and solid solution can be expressed as.and the activities of Ge and Si in liquid and solid solution have been also given. They show positive deviations from Raoult's law.
Keywords:binary phase diagram   phase diagram calculation- Ge-Si system   excess free energy
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