Abstract

Crystallograhic textures of phases in eutectics Al2O3 + ZrO2 (Y2O3) were investigated by means of X-ray diffraction. In all studied eutectic polycrystalls (grown from the melt by EFG technique) a preferred orientation [0001] of Al2O3 along the growth direction in all the samples was revealed for both initial orientations of Al2O3 seeding crystal: <0001> and <1011>. For a cubic ZrO2 there were two types of a preferred orientations: sharp ones, close to <123> with a 6-fold symmetry and more spread <110>. Such a 6-fold symmetry for a cubic phase appears in eutectic due to a joint crystallization.