high-performance refractory insulation material, exhibits excellent performance under extreme temperature conditions due to its unique physical and chemical properties.
Aluminum silicate ceramic fiber cotton, as a common refractory insulation material, is composed of aluminum oxide (Al ₂ O3) and silicon dioxide (SiO ₂) as its basic components. The combination of these two components endows aluminum silicate fiber cotton with excellent high temperature resistance and good thermal stability. In order to further improve the temperature resistance of the material, researchers have introduced zirconia (ZrO ₂) as a key component.
Zirconia is a material with high melting point, high resistivity, high refractive index, and low thermal expansion coefficient, which makes it a treasure in the field of high-temperature resistant materials. When zirconia is added to aluminum silicate ceramic fiber cotton, it not only significantly improves the material’s upper temperature limit, but also enhances its thermal stability and thermal shock resistance.
Generally speaking, based on the different content of zirconia, zirconium containing aluminum silicate ceramic fiber cotton can be classified into multiple grades. For example, the zirconia content in zirconium aluminum ceramic fibers is usually between 5% and 7%, while the zirconia content in zirconium containing ceramic fibers is even higher, reaching 15% to 17%.
Zirconium containing aluminum silicate ceramic fiber cotton is widely used in various aspects of high-temperature industry due to its excellent high temperature resistance and good thermal stability. For example, zirconium containing ceramic fiber cotton plays an irreplaceable role in furnace lining, boiler insulation, heat treatment temperature control, and glass kiln roof insulation. In addition, it also has good fire resistance and insulation effects, low thermal conductivity, low heat capacity, and excellent mechanical processing performance, making construction operations more convenient and efficient.
In summary, the content of zirconia in zirconium containing aluminum silicate ceramic fiber cotton is one of the key factors affecting its temperature resistance. By adjusting the content of zirconia, zirconium containing ceramic fiber cotton products that meet different working conditions can be produced. These products not only have excellent high temperature resistance and good thermal stability, but also have excellent mechanical processing performance and broad application prospects.
