Heterogeneous equilibria in a Ho-Mn-O system
Heterogeneous equilibria in a Ho-Mn-O system at low oxygen pressures were studied by a static method in combination with X-ray diffraction analysis of quenched solid phases. The sequence of phase equilibria upon the dissociation of HoMn2O5 and HoMnO3 was determined. A fragment of an isothermal section of the phase equilibrium diagram at 1173 K was constructed for a Ho-Mn-O system in the coordinates of composition and oxygen pressure.