The new generation of ZTA zirconium aluminum composite ceramic products combines the hardness and high wear resistance of 99 alumina corundum ceramics with the toughness and strength of 3Y zirconia ceramics. From the perspective of product performance, it is the best material for preparing high-end grinding media and lining brick products that are "wear-resistant, impact resistant, and consistent inside and outside". From the perspective of product application fields, ZTA ceramic products not only have their own advantages in the field of structural ceramics, but also can replace zirconia ceramic products at a lower price, and can also replace them in existing alumina applications to meet the needs of high-strength impact application environments and the improvement of high-purity ultrafine product quality. This substitution has already begun, and its trend will continue to accelerate.