More than 60 years ago, the industrial application of zirconia ceramics was far from being developed. Around the 1970s, the world began to study the application of zirconia ceramics on a large scale because of its outstanding performance in engineering applications.

Zirconia ceramic belongs to a new type of ceramic, and its excellent physical and chemical properties have become a research hotspot in the field of scientific research, and have been widely used in industrial production. It is an important raw material for refractories, high-temperature structural materials and electronic materials. Among all kinds of metal oxide ceramic materials, zirconia has the best thermal stability and heat insulation performance at high temperature, and is the most suitable for ceramic coating and high temperature refractory products.

Zirconia - based ceramic pigment with zirconia ceramic as the main raw material is an important component of advanced glaze. The thermal conductivity of zirconia is the lowest among common ceramic materials, and the thermal expansion coefficient is close to that of metal materials. The special crystal structure makes it an important electronic material.

Zirconium oxide ceramics become the favorite of plastic ceramic materials due to its phase change and toughness. Good mechanical and thermal physical properties enable it to be an excellent reinforcing phase in metal matrix composites.

Since Gupta first reported the four-way zirconia ceramic TZP, the study of TZP materials has been in the ascendant. TZP ceramics have the highest mechanical properties at room temperature among zirconia toughened ceramics.

The strength and fracture toughness can be up to 1. 5 gpa and l 5 mpa/m2, the hardness, good wear resistance and chemical corrosion resistance and is often used in harsh environments and demanding load conditions, such as used for wire drawing die, bearings, seals, and replace bones, and the CAM engine piston top, valve body, glass fiber and tape cutter, etc.