Phase transition alpha process of high-purity alumina

As is well known, temperature plays a crucial role in the phase transition process of high-purity alumina, and as temperature changes, it decomposes into different alpha structures. The specific content can be reviewed together with the editor.

The phase transition of high-purity alumina is a quantitative process, with decomposition still occurring at 205 ℃. Alpha alumina begins to appear above 900 ℃ and reaches an ideal state above 1200 ℃. The hexagonal crystal structure of high-purity alumina, alpha alumina, is the main component of corundum, which is generally referred to as corundum in nature.

Generally, it is divided into three types. One type is alpha alumina, which has stable properties and is acid and alkali resistant. Another type is beta alumina, which is a layered structure that allows ions to pass between layers. Another type is gamma alumina, which is easily soluble in acids and bases but has a large surface area and is generally used as an adsorbent or catalyst carrier.

Many of us only have a simple understanding of high-purity alumina and do not have a deep understanding of it. Today, we will briefly introduce its phase transition alpha process through the above content, which may be useful in our future use.