Aluminum oxide substrate is widely used in the electronics industry as a base material for thin-film circuits and semiconductor devices due to its excellent electrical insulation and thermal conductivity. It serves as a crucial component in the production of LED lighting, where it provides a stable and heat-resistant platform for mounting LED chips. In the field of catalysis, it acts as a support for catalysts in chemical reactions, enhancing their efficiency and stability. Additionally, it is employed in the manufacturing of sensors, particularly for gas detection, owing to its high sensitivity and durability. Its biocompatibility also makes it suitable for medical applications, such as coatings for implants and prosthetics, ensuring long-term performance in the human body.