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本文将文献[3]所导出的对应关系定理应用于温度T、压强P和组成x_i均可独立交化的多元相图,得到适用于这类相图的六条推论,讨论了这类相图中两个紧邻相区中的不同相的总数Φ、紧邻相区的相边界的维数R_1以及两个紧邻相区中共同具有的相的数目△Φ的变化范围和规律。同时又讨论了这类相图中两个紧邻相区的边界的维数R_1~′和Ri、△Φ的关系。根据所有这些规律和关系具体地分析了二元和三元体系的P-T-x相图中紧邻相区及其边界的关系。
In this paper, we apply the corresponding relation theorem derived in [3] to the multiphase plots which can be independently transformed with temperature T, pressure P and composition x_i, and get six corollaries suitable for such phase diagrams. The total number of different phases in two adjacent phase regions Φ, the dimension R_1 of the phase boundary in the immediate vicinity of the phase region, and the range and regularity of the number of phases ΔΦ in common in the two adjacent phase regions. At the same time, the relationship between the dimension R_1 ~ ’and Ri, △ Φ of two adjacent phase boundaries in this kind of phase diagram is also discussed. Based on all these laws and relations, the relations between the immediate neighbor regions and their boundaries in P-T-x phase diagrams of binary and ternary systems are analyzed in detail.