Used as a high-performance reinforcing agent in composite materials, especially in friction products like brake pads and clutch linings, where it improves heat resistance and wear properties. Commonly serves as a substitute for asbestos due to its excellent mechanical strength and thermal stability. Enhances the performance of plastics, ceramics, and coatings by increasing tensile strength, stiffness, and resistance to high temperatures. Also applied in electronic materials and catalyst supports due to its unique fibrous structure and chemical durability.