ZrO2 has excellent heat resistance, insulation, and corrosion resistance. The density range of zirconium ceramics is 5.95-6.05g/cm3. Among the four spherical ceramic materials (Si3N4, SiC, Al2O3, ZrO2), zirconium has the highest strength, exceeding 8MPa · m1/2, and a thermal expansion coefficient of 10.5 × 10-6/° C, close to the thermal expansion coefficient of metal, very consistent with metal, but with significant changes in dimensional stability with temperature. The form of fatigue contact failure is destructive fragmentation, which is not as good as silicon nitride in certain critical situations. Stable Zirconia ceramics have self-lubricating properties, which can solve the pollution and inconvenience caused by adding lubricants. Good corrosion resistance, can also be used in medium acid, medium alkali, seawater and other media; High temperature resistant, zirconium ceramic, solid clay 2. Applicable fields 1.Semiconductors, LCD manufacturing equipment, electroplating equipment, synthetic fiber manufacturing equipment; 2.Optical film equipment, various heat treatment furnaces, vacuum equipment, etc.; 3.It can also be applied to composite bearings and cold working tools; 4.Different guide wheels, different valves, vacuum equipment and various harsh environments.