Aluminum oxide substrate is widely used in the electronics industry as a key material for manufacturing thin-film circuits and hybrid microelectronics. Its excellent thermal conductivity and electrical insulation properties make it ideal for creating substrates that support high-performance electronic components, ensuring efficient heat dissipation and reliable operation. In the field of catalysis, it serves as a support material for catalysts in chemical reactions, particularly in processes like petroleum refining and environmental cleanup, due to its high surface area and stability. Additionally, it is utilized in the production of abrasive materials, such as grinding wheels and sandpapers, owing to its hardness and durability. In optics, aluminum oxide substrates are employed for creating transparent ceramics and coatings, which are used in laser systems and protective layers for sensitive optical components. Its biocompatibility also makes it suitable for medical applications, including implants and prosthetics, where it provides strength and resistance to wear.