The Preparation and Properties of Semi-conductive Glaze for Electric Ceramics

Abstract With the continuous development of the types and properties of electric porcelain glazes, electric porcelain insulators have been widely used in the power grid industry. Electric porcelain semiconductive glaze is a type of glaze with conductive properties formed by adding semiconductor materials to ceramic glaze and processing it through special techniques. The purpose of this topic is to study and explore the preparation process and properties of electric ceramic semiconducting glaze, providing new ideas for the development of the ceramic glaze field. We used experimental methods to transform ZnO and SnO 2 powders into electrically conductive ceramic glaze by adding them to the glaze slurry. Conduct performance tests on the glaze and sintered glaze surface to study the changes in glaze properties under different raw materials, contents, and temperature treatments, in order to determine the optimal formula for the glaze. Through research, it has been found that with the increase of metal oxides, the various properties of the glaze are enhanced. Zinc oxide glaze has the best Vickers hardness at 1300 °C, while tin oxide glaze has the best hardness at 1250 °C, the Vickers hardness is 539HV.