Phase equilibria in the Co-Mn-Ti-O system over wide ranges of temperature and oxygen pressures

摘要

The available information on the Mn-Ti-O, Mn-Co-O, Co-Ti-O, and Co-Mn-Ti-O systems is summarized and evaluated. The phase-diagram data are analyzed in terms of unified po_2-T-x phase diagrams. The phase diagrams of these systems in equilibrium with air are presented, and the evolution of the phase equi- Libria is followed as a function of temperature and oxygen pressure.