High-purity Alumina Silicate Refractory Fibers
High-purity alumina silicate refractory fibers, also known as ceramic fibers, are man-made fibers made of high-purity alumina silicate as raw materials. They are crystalline fibers with large aspect ratio, excellent high temperature performance, heat insulation, sound insulation, strength and thermal shock resistance.
High-purity alumina silicate refractory fibers exhibit excellent high temperature performance due to the presence of numerous thin and uniform lamellar crystals. The crystal layer can maintain a high degree of mechanical strength and chemical stability up to a high operating temperature of 1000-1400°C. The crystalline lattice has the properties of slow heat conduction, heat insulation, and uniform thermal expansion, which makes it suitable for use in high-temperature heating and insulation applications.
High-purity alumina silicate refractory fibers are lightweight and have good forming ability, and can be processed into various shapes with traditional refractory materials such as boards, mats, blankets, modules, and bulk products. High-temperature resistance of these fibers can be determined by testing their softening point (TSP) and temperature limit (RTF)(1).
Due to the excellent properties of high-purity alumina silicate refractory fibers, they are used in a variety of applications in industries such as aerospace, petrochemical, power generation, military, and others. For example, they are used as refractory insulation and heat insulation materials in power plants and chemical plants. They are also used as components of fuel cells and thermal management systems.
High-purity alumina silicate refractory fibers also have some limitations. For example, when exposed to an oxidizing environment, their properties are degraded due to low boron content. In addition, these fibers are relatively fragile and may break during the operation or manufacturing process.
Despite these drawbacks, high-purity alumina silicate refractory fibers are gaining increasing popularity in various industries due to their excellent performance, high-temperature resistance, and low-cost fabrication process. Their use is expected to further increase as the industries become more conscious of environmental sustainability and energy efficiency.
High-purity alumina silicate refractory fibers are increasingly used in many different industries due to their distinct advantages, such as high temperature performance, heat insulation, sound insulation, strength, and thermal shock resistance. These fibers are often used as refractory insulation and heat insulation materials in power plants and chemical plants, as components of fuel cells, and as thermal management systems. Generally, these fibers perform well in high temperatures; however, their properties are degraded when exposed to an oxidizing environment due to their low boron content. High-purity alumina silicate refractory fibers may also be fragile and break during the manufacturing or operation process. Despite the drawbacks, the excellent performance and low-cost fabrication of these fibers are likely to make them increasingly popular in various industries in the future.
