The textbook outlines issues related to the thermodynamic description of equilibria in one-, two- and three-component systems. Mostly metal systems are considered as examples. Special attention is paid to the analytical representation of the concentration dependence of thermodynamic functions in binary liquid systems, the calculation of the thermodynamic properties of ternary systems based on data on boundary binary systems, and calculations of phase diagrams.

The textbook is intended for students of higher educational institutions studying in a master's program “Materials science of nanomaterials and components of electronic equipment” in the direction of master’s training in “Technical Physics”. It can also be used when teaching students in the areas of training “Materials Science and Technology of Materials”, “Metallurgy”, in advanced training systems, in institutions of additional professional education.

Recommended by the UMO for university polytechnic education as a teaching aid for university students studying in the master's program "Technical Physics".

ContentsUse the arrow to expand or collapse this sectionGeneral thermodynamic relationshipsBasic postulates and laws of chemical thermodynamics.Thermodynamic potentials and characteristic functions.General concepts of heterogeneous equilibria.Definitions .Chemical potential.Activity method. Selection of the standard state. Gibbs phase rule. Phase equilibrium in one-component systems. Basic elements of the phase diagram. Clapeyron-Clausius equation. Critical state of matter. Polymorphic transformations in solid phases. Phase transitions of the first and second order. Liquid crystalline state of matter. Equilibrium in two-component systems. Equilibrium in condensed systems with the participation of the solid phase. Liquid-liquid equilibrium in binary systems. Distribution of a component between two immiscible phases. Liquid-vapor equilibrium in two-component systems. Laws D.P. Konovalova. Laws of M.S. Vrevsky. Distillation processes. Analytical representation of the concentration dependence of thermodynamic functions in single-phase two-component systems. Equilibrium of phases in three-component systems. Methods of depicting the composition in three-component systems. Phase equilibria in the simplest three-component systems. Analytical representation of the concentration dependence of thermodynamic functions in liquid three-component systems.