Aluminium oxide, a type of mineral, is a white powder that resembles table salt. It is produced by smelting aluminum and is used for numerous purposes, ranging from insulators and ceramics to fire retardant.
The material is available in a wide variety of formulations. In addition to the acidic and neutral grades, it is also available in decolorization, flash grade, and super activated grade. Alumina is a preferred choice for many applications, including bionic implants, and is widely used in the manufacturing of aluminium metal and body armour.
When compared to other materials, alumina has many unique properties. These include a high melting point and good thermal conductivity.
Aluminium oxide is a very good electrical insulator. Its high thermal conductivity makes it a suitable material for building high-temperature appliances. This material is often used in the insulation of furnaces.
Aluminium oxide is often used as a substrate in integrated circuits. It is also a popular material for producing sapphires, gemstones, and abrasives.
Aluminium oxide is also found naturally in corundum. Corundum is known for its gem-quality forms, such as rubies. However, it is also used for a variety of other applications.
In addition to its electrical insulating properties, aluminium oxide is used in the manufacture of fire retardant and body armour. Additionally, it is commonly used in the manufacturing of abrasive tiles, heavy clayware, and piping components.
Aluminum oxide is available in various crystalline and non-crystalline forms. Among the crystalline forms, the most common are the alpha phase (AlO), the b-alumina (AlS), and the corundum.