Phase diagram of the BaO-PbO-Fe2O3 system

The paper presents the results of BaO-PbO-Fe2O3 system investigation. According to the experimental data the self-consistent complexes of thermodynamic parameters have been selected and optimized. These data allow to model the phase equilibria realized in this system. A user database has been created. That allows to carry out calculations using the software package FactSage. With the help of the software package FactSage the phase diagram of the BaO-PbO-Fe2O3 system was calculated. The results of calculations are presented in the form of isothermal and polythermal sections of the phase diagram as well as the system liquidus surface. In some cases the diagrams show isobars of the lead oxide equilibrium partial pressures. The obtained results can be used for a rational choice of the growth parameters for hexagonal ferrites single crystals flux producing.