Bioceramics refers to a class of ceramic materials used for specific biological or physiological functions, that is, biological, medical, biochemical and other ceramic materials directly used in the human body or directly related to the human body. Alumina ceramics as bioceramics

Materials, the conditions that need to be met are as follows: biocompatibility, mechanical compatibility. It also has excellent affinity with biological tissues, antithrombotic, sterilization and excellent physical and chemical stability.

Bioceramics not only have the characteristics of stainless steel plastics, but also have hydrophilicity and good affinity with biological tissues such as cells. In addition to being used for measurement, diagnosis and treatment, etc., bioceramics are mainly used as substitute materials for biological hard tissue, and can be used in orthopedics, plastic surgery, dentistry, oral surgery, cardiovascular surgery, ophthalmology, ENT and general surgery. .

The biological hard tissue substitute materials include body bone and animal bone, and later developed to use stainless steel and plastic. Due to the use of these biological materials in living organisms, stainless steel has problems of dissolution, corrosion and fatigue, and plastic has problems of poor stability and low strength. Therefore, bioceramics have broad prospects for development, and countries around the world have successively developed bioceramic materials.