Features of Structure and Phase Formation during Synthesis of AIN–Al2O3–Y2O3 Composites in a Combustion Regime

Results are given for synthesis of AlN–Al2O3–Y2O3 composites in a combustion regime in an industrial reactor. The effect of synthesis temperature on formation of the microstructure, phase composition, and impurity oxygen content dissolved in the crystal lattice of aluminum nitride is studied. The optimum synthesis temperature is determined. Experimental batches of composite powders are produced for the manufacture of dielectric ceramics with high thermal conductivity.