ISOTHERMAL SECTION OF THE Al₂O₃–TiO₂–Er₂O₃ PHASE DIAGRAM AT 1400 ºС

Abstract

The nature of phase equilibria in the Al₂O₃–TiO₂–Er₂O₃ system at 1400 ºC is estab-lished. It is shown on the isothermal section of the phase diagram at this temperature. The interaction in the system is determined by compound Er₂T₂O₇, which takes part in equilibria with most phases of the system and determines its triangulation. New phases and appreciable solubility regions based on components and binary compounds are not found in the system. Ternary eutectic points are expected in the three-phase regions and binary eutectic points in the quasibinary sections.