A ceramic material and a processing method thereof

Abstract

The invention discloses a ceramic material, which has the following components in weight percent: 77.5-95.0 wt% of α-alumina, 2.5-7.5 wt% of ferric oxide, and 2.0-10.0 wt% of zinc dioxide %, zinc oxide 0.5~5.0wt%. The invention also discloses a processing method of the ceramic material. By mixing ferric oxide, zinc dioxide, zinc oxide and α-alumina according to the designed ratio, the consistency of the inside and outside of the ceramic material is greatly improved, and it is pure black. And the product after sintering has low shrinkage and good consistency.

Description

technical field [0001] The invention relates to the technical field of electronic ceramics, in particular to a ceramic material and a processing method thereof. Background technique [0002] Ceramics that can use electricity and magnetic properties in the electronics industry are called electronic ceramics. Electronic ceramics are ceramics with new functions obtained through the control of surface, grain boundary and size structure. It can be widely used in energy, household appliances, automobiles, etc. [0003] At present, black electronic ceramic materials are usually mixed and finely ground by iron, manganese, chromium + α-alumina ball mills, then made into wax cakes, and then made into products. The appearance of its products is: coffee black, while the inside is iron red and black. In addition, a large amount of cobalt dioxide is also added on this basis, so that the price of cobalt is quite expensive, and the cost is greatly increased. Although the color is better ...

AI Technical Summary

Problems solved by technology

In addition, a large amount of cobalt dioxide is also added on this basis, so that the price of cobalt is quite expensive, and the cost is greatly increased. Although the color is better than the original, it is blue-black, and the inside and outside are still inconsistent.

There are also some companies that directly purchase the black color base and add α-alumina to make products after grinding and mixing. The blackness of the product has improved, but it is not pure black, and the inside and outside are still inconsistent.