Models of p-T diagrams for a ternary system with invariant equilibrium of three solid phases, liquid, and vapor

Abstract

A version of a model of the p-T diagram for a ternary system in which three solid phases, liquid, and vapor are in invariant five-phase equilibrium is developed. The phase equilibria and phase transitions in the isobaric T-x-y diagram are analyzed, and isothermal and polythermal sections are presented.