Aluminum oxide plate is commonly used in high temperature environments. It has good corrosion and wear resistance. Aside from this, it also has high strength and chemical stability. In addition, it does not produce toxic gas. Therefore, it is suitable for use in curtain wall panels, electrical panels, and furniture panels.
The structure of aluminum oxide is characterized by the ABAB stacking of oxygen planes along the c-direction. There are vacancies in the octahedral interstitial positions, which are filled by Al ions. Depending on the number of oxygen atoms, it can be classified into two types: a-alumina and standard transition alumina.
A-alumina is the only stable alumina phase at all temperatures. According to the formula, it is composed of 90 mole percent or more of aluminum compound. This type is a trigonal lattice and possesses very high compressive strength. Moreover, it is ideal for insulating substrates.
Standard transition alumina is an amorphous crystal of aluminum oxide. XPS (X-ray photoelectron spectroscopy) survey spectrum shows that the proportions of four elements are particularly high.
Aside from the high compressive strength, alumina has high thermal conductivity. In addition, alumina has good insulating properties. It is especially suitable for the manufacture of complex components for the aerospace industry. Furthermore, alumina can be used in the production of wear liners, corrosion liners, and a wide range of commercial applications.
There are various types of anodised aluminum plates. They are available in different thicknesses. Anodised aluminum plates can be easily bent, but they are not brittle. However, they may lose their uniformity at the base. Also, they can be affected by hot water and high baking temperatures.