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本文阐述了相图计算的基本原理和确定体系中各相的全摩尔和偏摩尔过剩自由能的方法,特别是由二元系性质预示三元系性质的几何模型.在指出相图计算的意义和局限性的同时,阐明了理论计算和实验测定相结合是构筑熔盐相图的最佳方法及该方法的主要步骤.
In this paper, the basic principle of phase diagram calculation and the method of determining the total molar and partial excess free energy of each phase in the system are expounded, especially the geometric model predicting the ternary system by the properties of binary system. At the same time, it is clarified that the combination of theoretical calculation and experimental determination is the best method to construct molten salt phase diagram and the main steps of this method.