The application of alumina ceramics in the current society has completely exceeded our imagination. It not only meets our daily use, but also meets various special requirements. Since alumina ceramics are so widely used, let's focus on the hardness of alumina ceramics!
In fact, the hardness of alumina ceramics is extremely high. Whether it is polycrystalline alumina ceramics or single-crystal alumina ceramics, they have higher stainless steel hardness performance, because the hardness of ceramics in the bracket can reach more than nine times that of stainless steel and enamel. Therefore, when our teeth come into contact with the ceramic bracket, the enamel will be worn away in a very short time.
So what factors will affect the wear of alumina ceramics?
1. First of all, the environment and time of the workpiece;
2. Secondly, the external force on the alumina ceramics, such as working pressure and impact pressure;
3. Third, the pressure on the wear-resistant material, the common ones are specific gravity and related coefficients;
4. Finally, the medium, such as particle size, temperature, flow rate and specific gravity.