Zirconia fiber is a high-grade lightweight refractory fiber material that can be used for a long time in ultra-high temperature oxidation atmosphere above 1500 ° C.
In terms of composition and structure, zirconia fiber is a polycrystalline refractory fiber material composed of pure tetragonal / cubic ZrO2 nano ceramic grains. Due to the high melting point (2700 ℃), non oxidation and other high-temperature excellent characteristics of ZrO2 material, ZrO2 fiber has higher service temperature than other refractory fiber varieties (such as alumina fiber, mullite fiber, aluminum silicate fiber, etc.), and has stable high-temperature chemical properties, corrosion resistance, oxidation resistance, thermal shock resistance, nonvolatile and pollution-free, It is an excellent refractory fiber material in the world.
① The service temperature is high. The complete fiber shape can be maintained at high service temperature up to 2200 ° C or even 2500 ° C.
② Corrosion resistance is good. The acid and alkali corrosion resistance of ZrO2 is obviously better than that of SiO2 and Al2O3.
③ It is not volatile and pollution-free under high temperature. The high temperature vapor pressure of ZrO2 in all metal oxides is low, chemically inert, non-volatile and pollution-free at high temperature.
① As an ultra-high temperature thermal insulation and protection material and ceramic matrix composite reinforced zirconia fiber material, it is used in key technical fields such as aerospace, national defense and military industry, atomic energy and so on.
② It is used to make ultra-high temperature industrial kilns above 1500 ° C to 2200 ° C, ultra-high temperature experimental electric furnaces and other ultra-high temperature heating devices. It is used in many industrial and scientific research fields, such as ceramic sintering, metal smelting, high temperature decomposition, semiconductor manufacturing, quartz melting, crystal growth, experimental research and so on.
③ As a high-temperature filter material and high-temperature reaction catalyst carrier, it is used for the filtration and impurity removal of liquid or gas at high temperature, as well as the synthesis or cracking catalysis of high-temperature chemical reaction.