Alumina ceramics are widely used engineering ceramics with a series of excellent physical, chemical and mechanical properties: high hardness and wear resistance, high melting point (2072℃), good thermal stability, high insulation, corrosion resistance and good biocompatibility. Due to these characteristics, alumina ceramics are used to manufacture various industrial parts, such as components of cutting tools, pumps and valves, substrates of electronic devices, insulators and structural components, implants and artificial joints in the biomedical field, etc.
At the same time, the chemical stability and corrosion resistance of alumina ceramics also enable them to maintain a long service life in harsh environments.