Phase equilibria calculation of LaI3-MI (M=Na, K, Cs) binary systems
来源期刊：JOURNAL OF RARE EARTHS2009年第2期
论文作者：LI Shaobo SUN Yimin SHAO Guoquan WANG Yu QIAO Zhiyu
Key words：phase equilibria; LaI3-MI systems; CALPHAD technique; enthalpy of mixing; rare earths;
Abstract: The Gibbs energies of liquid phases in the LaI3-MI (M=Na, K, Cs) systems were described by the modified quasi-chemical model. From the measured phase equilibrium data of these binary systems, a set of thermodynamic functions were optimized by using the CAL-PHAD technique. The enthalpy of mixing and the interaction parameter of the liquid phase were predicted from known data for the LaI3-MI systems.
LI Shaobo1，SUN Yimin2，SHAO Guoquan1，WANG Yu1，QIAO Zhiyu3
(1.Department of Chemistry and Materials Engineering,Hefei University,Hefei 230022,China;
2.Institute of Chemistry and Materials Science,Anhui Normal University,Wuhu 241000,China;
3.Department of Physical Chemistry,University of Science and Technology Beijing,Beifing 100083,China)
Abstract:The Gibbs energies of liquid phases in the LaI3-MI (M=Na, K, Cs) systems were described by the modified quasi-chemical model. From the measured phase equilibrium data of these binary systems, a set of thermodynamic functions were optimized by using the CAL-PHAD technique. The enthalpy of mixing and the interaction parameter of the liquid phase were predicted from known data for the LaI3-MI systems.
Key words:phase equilibria; LaI3-MI systems; CALPHAD technique; enthalpy of mixing; rare earths;
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