Aluminium Oxide Powder

Aluminium oxide powder, also known as alumina powder, is a finely ground form of aluminium oxide, a compound formed by combining aluminum and oxygen. It is characterized by its white crystalline appearance and high melting point. The powder is manufactured through a precise process that involves crushing and grinding alumina crystals into a fine, consistent texture.

Properties and Characteristics

Aluminium oxide powder possesses several key properties that make it a valuable material in numerous industrial processes:

High Hardness: With a Mohs hardness of 9, aluminium oxide powder is exceptionally hard, second only to diamond. This property makes it ideal for applications that require abrasion resistance and durability.

Chemical Stability: Aluminium oxide powder exhibits excellent chemical stability, rendering it resistant to corrosion and able to withstand exposure to acidic and alkaline environments. This stability ensures its longevity and reliability in various industrial settings.

High Melting Point: With a melting point exceeding 2,000 degrees Celsius, aluminium oxide powder can withstand extreme temperatures, making it suitable for applications that involve high heat or thermal insulation requirements.

Applications of Aluminium Oxide Powder

The versatility of aluminium oxide powder enables its utilization in a wide range of industries and applications:

Abrasives: Due to its exceptional hardness, aluminium oxide powder is widely employed as an abrasive material. It serves as a key component in the production of grinding wheels, sandpaper, polishing compounds, and abrasive media used for surface finishing and material removal.

Refractories: Aluminium oxide powder plays a crucial role in the production of refractory products, which are essential in high-temperature applications such as furnace linings, kiln furniture, and crucibles. Its high melting point and chemical stability make it an ideal material for resisting heat and protecting against thermal shock.

Ceramics: As a raw material in ceramic manufacturing, aluminium oxide powder contributes to the production of ceramic tiles, porcelain, and sanitaryware. Its high hardness and chemical stability enhance the durability and strength of ceramic products, allowing them to withstand wear, chemicals, and environmental factors.

Electrical Insulation: Aluminium oxide powder finds application in the electrical and electronics industry as an insulating material. It is used in the manufacturing of electrical components, such as insulators and substrates, due to its excellent electrical insulation properties and resistance to high voltages.

Catalysts: Aluminium oxide powder serves as a catalyst support in various chemical reactions. Its large surface area provides a platform for catalysts to attach and promote desired chemical transformations. This application is crucial in industries such as petrochemicals, pharmaceuticals, and polymer production.