АL₂О₃-ZrO₂-Yb₂О₃, PHASE DIAGRAM. II.LIQUIDUS SURFACE

Abstract

The liquidus surface for the АL₂О₃-ZrO₂-Yb₂О₃ phase diagram is constructed for the first time. No ternary compounds are found in the system. The liquidus surface is completed by seven primary crystallization fields. Two four-phase invariant eutectic equilibria, two four-phase invariant transition equilibria, and one three-phase invariant eutectic equilibrium are found in the ternary system. Since ZrO₂ interacts with other phases eutectically, compos¬ite materials can combine the unique properties of ZrO₂ -based T- and F-phases with the properties of other phases of the АL₂О₃-ZrO₂-Yb₂О₃ system.