Application scope

Refractory materials

Zirconia fiber is a polycrystalline refractory fiber material. Due to the high melting point, non oxidation and other high temperature characteristics of ZrO2 material, ZrO2 fiber has a higher service temperature than alumina fiber, mullite fiber, Aluminium silicate fiber and other refractory fiber varieties. Zirconia fiber can be used for a long time in an ultra-high temperature oxidation atmosphere above 1500 ℃, with a maximum usage temperature of up to 2200 ℃, and even up to 2500 ℃, it can still maintain its complete fiber shape. Moreover, it has stable high-temperature chemical properties, corrosion resistance, oxidation resistance, thermal shock resistance, non volatilization, and no pollution. It is currently the top refractory fiber material in the world. The acid and alkali corrosion resistance of ZrO2 is significantly stronger than that of SiO2 and Al2O3. Insoluble in water, soluble in sulfuric acid and hydrofluoric acid; Slightly soluble in hydrochloric acid and nitric acid. It can co melt with alkali to form zirconate. [4]

gas turbine

Thermal spraying Zirconium dioxide Thermal barrier coating has made great progress in the application of aviation and industrial gas turbines, and has been used in the turbine part of gas turbines to a certain extent. Due to the fact that this coating can reduce the temperature of air-cooled high-temperature components by 50-200 ℃, it can significantly improve the durability of high-temperature components, or allow for an increase in gas temperature or a reduction in the demand for cooling gas while maintaining the temperature sustained by high-temperature components, thereby improving engine efficiency. [5]

ceramic material

Due to its high refractive index, high melting point, and strong corrosion resistance, zirconia is used as a raw material in the kiln industry. Piezoelectric ceramic products include filters, speakers, ultrasonic underwater sound detectors, etc. There are also daily ceramics (industrial ceramic glaze), zirconium bricks and zirconium pipes used for melting precious metals. Nanoscale zirconia can also be used as a matrix material for polishing agents, abrasive particles, piezoelectric ceramics, precision ceramics, ceramic glazes, and high-temperature pigments.