Abstract

The production technology of ceramic materials has a significant impact on the physical properties of the final products. This paper shows the differences in density and Young’s modulus of samples made by five different compression pressures. Due to the increasing compression pressure, the particles are closer to each other therefore the porosity of the material decreases, and the density increases. The influence of the firing temperature and compacting pressure on density and Young’s modulus of electroporcelain is studied after firing up to temperature 1200 °C with a heating rate of 5 °C/min for heating and cooling stage. The studied material is made from electroporcelain mixture. This mixture is often used in electotechnical industry for the production of high-voltage insulators. The samples are made under a pressure from 70 MPa up to 110 MPa.

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