Used as an abrasive in grinding wheels, cutting tools, and sandblasting due to its hardness and durability. Commonly found in refractory linings for high-temperature furnaces because it resists thermal shock and chemical attack. Employed in semiconductor devices, especially in high-temperature, high-voltage, and high-frequency electronics like power modules and LED substrates. Utilized in automotive components such as ceramic brake discs and diesel particulate filters for its wear resistance and thermal stability. Also used in armor materials for lightweight ballistic protection.