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Temperature-resistant toughness of alumina ceramics in the heat-treated state

Date:2024-10-25 Hits:32

Alumina ceramics is a high-performance material widely used in industry and scientific research. It is known for its excellent heat resistance, wear resistance and chemical stability. In the heat-treated state, alumina ceramics exhibit excellent temperature resistance. With a melting point as high as 2050°C, it is able to maintain stable physical and chemical properties at high temperatures and is not susceptible to thermal decomposition or softening. This high temperature resistance makes alumina ceramics have a wide range of applications in high-temperature furnaces, refractory materials and aerospace.


In addition, alumina ceramics also have good thermal shock stability, that is, in a short period of time when the rapid heating or cooling, can resist the temperature change caused by cracks and breakage. This property is mainly due to its uniform microstructure and good thermal conductivity, which helps to disperse and relieve thermal stress.


In terms of toughness, although alumina ceramics are brittle materials, their fracture toughness can be improved to a certain extent after they have been treated with special processes, such as the addition of toughening agents or the use of composite structure design. These improvements help to enhance the reliability and service life of alumina ceramics under complex working conditions.