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

The main raw materials used in ceramic fiber production are alumina-silicate minerals, which include kaolin, alumina, and silica. These materials are combined with other components such as zircon, barium, or calcium compounds to enhance specific properties. The mixture is then heated to high temperatures, causing it to melt and then cool rapidly, forming the ceramic fibers. The specific composition can vary depending on the desired properties of the final product, such as high-temperature resistance, thermal insulation, and mechanical strength.