Why can copper oxide be used as a ceramic colorant?

The advent of ceramics has a long history and is very collectible. It can be used as ornaments, containers, vases, etc., and is also widely used in people's lives.
The colors of ceramics are also very rich. Blue, red, green, etc. are all common colors. How are these colorful ceramics made? I believe that everyone is very interested in discussing this issue. In fact, the coloring of ceramics is inseparable from it-copper oxide. Why can copper oxide be used as a ceramic colorant? This is inseparable from the properties of copper oxide. At the same time, the particle size and dispersibility of copper oxide have an impact on its coloring effect.
Copper oxide has excellent coloring and stability, so it is often used in ceramic coloring. It can be made into pigments of different colors, such as green, blue, purple, etc. Green should be the most common one, and it can get different colors and texture effects through different processing methods. In the manufacture of high-temperature ceramics, copper oxide can be used to enhance the high-temperature resistance of ceramics; in the ceramic manufacturing process, copper oxide can also be added to ceramic materials as an additive to enhance its hardness and strength. In the manufacture of traditional Chinese blue and white porcelain, copper oxide has played a very large value and has become an indispensable part of blue and white porcelain coloring!
Copper oxide is so excellent, so what should be paid attention to during use?
First of all, the amount of copper oxide added needs to be determined by experiment. Excessive addition will affect the quality of ceramic products; secondly, copper oxide powder is easy to suspend in the air, and protective measures need to be taken when using it; copper oxide is easy to decompose at high temperatures, so pay attention to controlling its ambient temperature during use.

author:Hazel
date:2025-07-23