Representation of phase equilibria in ternary oxide systems
The P-T-x diagram of the Yb-Mn-O system has been constructed by the static method for study of heterogeneous equilibria and the isothermal annealing method. The problems of representation of such diagrams of ternary oxide systems with one volatile component are discussed. The values of the thermodynamic functions are calculated for the reactions of dissociation of the YbMn2O5 and YbMnO3 compounds and their formation from elements.