Optimization and Calculation of TbCl3-ACl (A=Li, Na, K, Rb, Cs) Phase Diagrams
来源期刊：JOURNAL OF RARE EARTHS2005年第1期
论文作者：Zhang Jing Sun Yimin Qiao Zhiyu Guan Mingyun
Key words：metal materials; phase diagrams; optimization; calculation; rare earths;
Abstract: By using CALPHAD (Calculation of Phase Diagram) technique the optimization and calculation of the binary systems of TbCl3-ACl (A= Li, Na, K, Rb, Cs) were carried out. For describing the Gibbs free energy of liquid phase in these systems the new modified quasichemical model in the pair-approximation for short-range ordering was used. From measured phase equilibria data and experimental integral properties the TbCl3-ACl phase diagrams were optimized and calculated. A set of thermodynamic functions was optimized based on an interactive computer-assisted analysis. The calculated phase diagrams and thermodynamic data are self-consistent.
Zhang Jing1，Sun Yimin1，Qiao Zhiyu3，Guan Mingyun1
(1.Institute of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China;
2. Department of Physical Chemistry, University of Science & Technology Beijing, Beijing 100083, China;
3.Department of Physical Chemistry, University of Science & Technology Beijing, Beijing 100083, China)
Abstract:By using CALPHAD (Calculation of Phase Diagram) technique the optimization and calculation of the binary systems of TbCl3-ACl (A= Li, Na, K, Rb, Cs) were carried out. For describing the Gibbs free energy of liquid phase in these systems the new modified quasichemical model in the pair-approximation for short-range ordering was used. From measured phase equilibria data and experimental integral properties the TbCl3-ACl phase diagrams were optimized and calculated. A set of thermodynamic functions was optimized based on an interactive computer-assisted analysis. The calculated phase diagrams and thermodynamic data are self-consistent.
Key words:metal materials; phase diagrams; optimization; calculation; rare earths;
【全文内容正在添加中】
