Used as an abrasive in sandpapers and grinding wheels due to its hardness. Commonly found in cutting tools and polishing compounds. Serves as a catalyst support in chemical reactions. Applied as a protective coating on metals and optical surfaces for wear and corrosion resistance. Used in electronics as a dielectric material in integrated circuits. Found in biomedical applications such as implants due to its biocompatibility and wear resistance. Also used in filtration systems to remove moisture and impurities from gases.