Structural ceramics are advanced ceramics with excellent mechanical, thermal and chemical properties, such as high temperature resistance, erosion resistance, corrosion resistance, high hardness, high strength, low creep rate and so on.Structural ceramics has the superior strength, hardness, insulation, thermal conductivity, high temperature resistance, oxidation resistance, corrosion resistance, abrasion resistance, high temperature strength and so on characteristics, therefore, in a very harsh environment or under the condition of engineering application, shows a high stability and excellent mechanical properties, have high-profile on material industry, the scope of its use is also growing.And the global and domestic industry for high precision, high wear resistance, high reliability mechanical components or electronic components increasingly stringent requirements, so the demand for ceramic products is very important, its market growth rate is considerable.