What are the main raw materials used in the production of ceramic fiber products?

The main raw materials used in the production of ceramic fiber products are alumina and silica, which are derived from natural minerals such as kaolin, alumina trihydrate, and silica sand. These materials are combined with other additives to form a slurry, which is then extruded, spun, or blown to create the fibers. The fibers are subsequently heat-treated to achieve the desired properties, such as high temperature resistance and low thermal conductivity.