Estimation of the AC electrical properties of some clay ceramic samples under different compositions and firing temperatures

Abstract

Clayey deposits' detailed mineralogical, electrical, and ceramic properties (El-Sheikh Fadl, El-Minya, Egypt) were determined to determine their potential use in the ceramic industry. The AC electrical properties of ceramic clay mineral mixtures change as their chemical composition (from clay to ceramic) and firing temperature change. The samples were electrically measured at room temperature as natural crude clay and then after firing at various temperatures (22, 1000, 1050, 1100, 1150, 1200 and 12500C). The measurements (electrical properties, X-ray, SEM, petrography, major and minor chemical characteristics, and chemical composition) show that the chemical composition (from clay to ceramic) and firing temperature have a significant impact on the mixture behavior and show how the properties of clay-ceramic products can be changed and improved. As temperature rises, so do conductivity and dielectric constant. Furthermore, water saturation (or humidity) affects the electrical properties significantly. Generally, the increase in ore mineral charges causes an increase in electrical properties. Excess ion exchange between grains, surface charge displacement, and diffusion polarization are all control mechanisms. The purpose of this research is to show how the electrical properties of ceramic clay mineral samples change with composition and temperature and to enhance the properties of the clay for industrial use.