What are the defects on the surface of alumina ceramics?

Alumina ceramics is a kind of ceramic material with Al2O3 as the main raw material. It has many advantages, such as high mechanical strength, high hardness, and low dielectric loss at high frequencies, so it is widely used in the fields of electronics, electrical appliances, machinery, textiles, and aerospace. But do you know what is its defect?

Alumina ceramics have a series of production processes. During the process, materials will come into contact with machinery, equipment, tools, utensils, and the environment. Therefore, there are many factors that cause pollution and quality problems in ceramic parts. In general, the common quality problems related to color after sintering of alumina ceramics are:

(1) There are spots on the surface, such as black spots, brown spots, and red spots;

(2) There are plaques on the surface, such as dark plaques, black plaques, bright plaques, etc.;

(3) Ceramic parts have chromatic aberration, such as overall yellowing or graying;

Innovacera has extensive experience in the manufacture of alumina ceramics and we have a lot of solutions to avoid the above issue.