ELECTROTECHNICAL PORCELAIN BASED ON RAW MATERIALS OF UZBEKISTAN

Abstract

The paper presents the results of the research on the production of electrical porcelain on the basis of available traditional raw materials of Uzbekistan. It is shown that in conditions of a shortage of high-grade mineral raw materials for the production of electrical porcelain, it is advisable to add about half of the kaolin in the pre-fired state to the batch. At the same time, the products of firing at 1350 ?С of primary and secondary Angren kaolins allow us to consider them as a mullite-containing component, which further provides high physical, mechanical and dielectric properties of the porcelain material. The phase composition of the obtained porcelain is mainly represented by new crystalline components such as mullite and cristobalite, which gives the right to relate it to the mullite type of electro porcelain.