METHOD FOR PREPARING ALUMINA-BASED SOLID SOLUTION CERAMIC POWDER BY USING ALUMINUM OXYGEN COMBUSTION SYNTHESIS WATER MIST PROCESS

摘要

Disclosed is a method for preparing an alumina-based solid solution ceramic powder by an aluminum-oxygen combustion synthesis and spraying-in-water process, which comprises the following steps: drying raw materials and then mixing uniformly to obtain a mixture; loading the mixture into a high-pressure reactor, igniting in an oxygen-containing atmosphere, carrying out a high-temperature combustion synthesis reaction to form a high-temperature melt and then maintaining the temperature for 1 - 60 s; then turning on a nozzle, spraying out the high-temperature melt through the nozzle and rapidly cooling by a liquid phase, so that the alumina-based solid solution ceramic powder is obtained.