Alumina Ceramic

Alumina ceramics have a very high temperature resistance and are able to remain intact and non-embrittlement at high temperatures. Therefore, alumina ceramics are often used in parts, electronic components, thermal components and other industries in high temperature environments.The hardness of alumina ceramics is very high, and can even reach the hardness level of quartz.

This makes alumina ceramics very wear-resistant and impact-resistant, and is widely used in protective materials, body ceramics and other fields.Due to the chemical stability of alumina, its ceramics can also have good corrosion resistance. Therefore, alumina ceramics are also widely used in chemical, pharmaceutical and other corrosive substance environment parts.

The Alumina ceramic plate is 99% pure alumina, which is chemically inert and dimensionally stable to 1800°C. Dense alumina ceramic plates have exceptional resistance to both oxidizing and reducing atmospheres at high temperatures and most corrosive environments and are normally used as hearth plates in rapid-heat electric furnaces.The alumina ceramic  plate is the best choice in the sintering process for Metal Injection Molding, there are there ceramic materials to choose from for the MIM setter plate.

Aluminum Oxide(Al2O3) ceramic plate: lower cost and is the most popular ceramic setter plate for Metal Injection Molding.

Alumina ceramic is made of aluminosilicate natural minerals as a main raw material, and is formed by a reaction sintering method in which a eucalyptus is synthesized in a sintering process or a mullite is first synthesized and then sintered.

Due to the low purity of raw materials and high impurity content, in addition to Al2O3 and SiO2, the components also contain impurities such as TiO2, Fe2O3, CaO, MgO, Na2O, K2O, etc., so that there are a considerable amount of glass phase in the product,resulting in mechanical and thermal properties. Poor, the excellent performance of mullite ceramics at high temperatures cannot befully utilized.

Therefore, ordinary mullite ceramics in the industry can only be used as a general refractory material in the case where the temperature and high temperature strength are not high.