Introduction：Zirconia is a material with high mechanical strength and fracture toughness at room temperature. Our zirconia (ZrO2) is partially stabilized zirconia (PSZ) with 3mol% Y2O3 added. Due to the small particle diameter of PSZ material, high-precision machining can be achieved, and its application in precision machining parts such as molds is expanding. In addition, it can also be used as a medium for industrial cutting tools, optical connector components, and crushing equipment. The high fracture toughness of PSZ can be used to make special springs, which are also widely used in household ceramic knives, slicers and other components.