In ceramic industry, the development is getting faster and faster, and many enterprises are becoming larger and the quality of their products is also getting better due to the production of ceramics. Aluminum oxide ceramics have become increasingly mature in manufacturing technology. They can actually be divided into two categories. One is ceramics with very pure aluminum oxide content, whose sintering temperature can reach 1800 ℃. The material made in this way can even replace platinum and be used as insulation material.

And the other type is the ordinary type, which is classified according to the content of alumina, mainly used in our daily life, such as making high-temperature resistant crucibles, making ceramic valve plates, bearings, etc. The density of alumina ceramics is affected by the properties of alumina itself.

After the formation of alumina ceramiclining plate, the step of high purification begins, but the density always fails to meet the requirements. At this time, it can be considered whether it is a problem with the original powder and formula. If there is no problem at the root, methods such as increasing pressure and sintering temperature can be used. However, during high purification, do not extend the insulation time, as it may cause deformation of the grains inside the alumina. In theory, it is required that the grains be uniform so that its structural composition is good enough.