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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]. 工程科学学报, 1989, 11(3): 252-257. DOI: 10.13374/j.issn1001-053x.1989.03.025 |
| 作者姓名： | 李瑞青 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: EGm(L)=7125XSiXGe(J/mol) EGm(S)=4808XSiXGe(J/mol) |
| 关 键 词： | 二元系相图 相图计算 Ge-Si系 过剩自由能 |
| 收稿时间： | 1988-03-11 |
Thermodynamics of Ge-Si Alloy System |
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| Li Ruiqing, Zhou Guozhi. Thermodynamics of Ge-Si Alloy System[J]. Chinese Journal of Engineering, 1989, 11(3): 252-257. DOI: 10.13374/j.issn1001-053x.1989.03.025 | |
| Authors: | Li Ruiqing Zhou Guozhi |
| Abstract: | No experimental therniodynamic properties of Ge-Si system have 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: EGm(L)=7125XSiXGe(J/mol) EGm(S)=4808XSiXGe(J/mol) 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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