Reasons for discoloration of alumina ceramics and production principles
Many people who have customized ceramic parts know that most of alumina ceramics are white, but after a long period of use, it will change from white ceramic parts to light yellow. Why does alumina ceramic change color? Is it because of the oxidation reaction?
The alumina ceramic parts gradually change from white to light yellow mainly due to two reasons.
On the one hand, due to changes in the external composition after sun exposure, this change is irreversible, so the color will change. On the other hand, alumina ceramics may be deliquescent, resulting in hydrated alumina.
In fact, not only ceramic products have such characteristics, but also other materials, so we can only overcome the discoloration of alumina ceramics by minimizing the influence of external factors.
Regarding alumina ceramics, in addition to understanding the reasons behind the discoloration of ceramics, you must also understand the basic principles of manufacturing ceramic parts and ensure that the ceramic products obtained meet the requirements and can be used normally.
Taking into account the particularity of special ceramic materials, alumina ceramic parts are designed and applied to reduce unnecessary damage. The main consideration is the type, size and assembly position of the assembled parts. Some ceramic parts need to consider a series of factors such as fixing method, load performance, type and size, ceramic shaft blank, manufacturing assembly and transportation process.