Alumina is a very chemically ionized substance with a high melting point, hardness and high chemical stability, especially it can maintain high hardness and strength at high temperatures, and this AlO is widely used. Used in metallurgy, machinery, chemical industry, electronics, medicine, aviation and national defense. Due to the ultra-micronization of alumina powder, its surface electronic structure and crystal structure have changed, resulting in surface effects that macroscopic objects do not have. , Small size effect, quantum effect and macroscopic quantum tunneling effect.
The application of alpha alumina in new alumina ceramics
Although there are many varieties of new ceramic materials, they can be roughly divided into three categories according to their functions and uses functional ceramics (also known as electronic ceramics), structural ceramics (also known as engineering ceramics), and biological ceramics. It can be divided into oxide ceramics, nitride ceramics, boride
