ALUMINUM ZIRCONATE

high fracture toughened ceramic material at room temp due to a dispersion of tetr ZrO2particles in an alumina matrix; can be prepared by plasma synthesis from the vapor phase by injecting mixtures of AlCl3 and ZrCl4 vapor in an argon–oxygen plasma, resulting in powder(s) consisting of a mixture of δ-Al2O3 and tetr ZrO2; reacted product, -100 mesh; 99% purity; reaction sintering with mullite in [DES91]; other references [CER91] [KOH88], wear coating [GEI92]