Abstract

A data base is being developed for calculation of quasi-binary and quasi-ternary phase diagrams of ceramic systems. The initial segment of this base covers combinations of Cr 2O 3, MgO, Al 2O 3, Fe 2O 3, Fe 3O 4and “FeO”. Lattice Stability, Solution and Compound Phase Parameters are presented covering the liquid, spinel, periclase and corundum phases in systems composed of these oxides. These parameters permit calculation of the thermochemical properties and phase diagrams of combinations of these oxides in good agreement with limited experimental data. Twelve calculated quasi-binary phase diagrams and three calculated quasi-ternary phase diagrams are presented illustrating the applicability of the data base.

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