Used as an abrasive in grinding and cutting tools due to its hardness. Common in sandpapers, grinding wheels, and polishing compounds. Serves as a refractory material in high-temperature applications like furnace linings. Acts as a catalyst support in chemical reactions. Found in ceramics and cutting tools for its wear resistance. Used in coatings to improve surface durability. Employed in medical applications such as prosthetics and dental implants because of its biocompatibility and strength. Also used in electronics as a substrate or insulating layer.