Structural Vacancies in Nonstoichiometric Compounds at High Pressure. Thermodynamic Model

A thermodynamic model is proposed which describes the effect of high pressure on the equilibrium structural vacancy concentration of nonstoichiometric compounds possessing wide regions of homogeneity. The implicit pressure and temperature dependence of the equilibrium structural vacancy concentration is found in general form for any nonequivalent crystal sublattice of a compound. [Russian Text Ignored].