Abstract
In the mixtures used to produce ceramic materials in Ocaña, Colombia, clays from the intrusive and extrusive igneous formation are used, to which grain size, chemical composition, and thermal conductivity are determined. Scanning electron microscopy tests at 700x magnification were applied to the prepared clay sample to find grain size and chemical composition. The results of the chemical composition of the clay indicate that the major component present is silicon with 27.96%, followed by 13.81% of aluminum, 3.29% of potassium and 58.95% of oxygen. Also, the grain size is in the range of 82701 nm to 96980 nm, density of 1.0705 g/cm3 and average thermal conductivity of 1.78 W/m×°C. The morphological and physical-ceramic properties of the clays are within the admissible ranges to be used in technological applications in the wastewater treatment plants, in designs of clay filters for water purification; they can also be used as refractory material for kiln walls in the ceramics sector.
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