Abstract
The glazes that cover the ceramic body with a thin layer and form a glassy structure, provide protective layer to the ceramic structure and affect the properties such as color, brightness and surface roughness of the product depending on the chemical composition and firing parameters of the glaze. One of the most important factors for ceramic glazes is color. Pigments, metal oxides or natural sources are used for the coloring of glazes. Nowadays, with the development of technology, the use of natural resources and waste materials as ceramic and glaze raw materials are increasing, and alternative glaze compositions are created with materials obtained from nature as well as the production of commercial glaze.
In this study, the use of sand obtained from the shore of Lake Simenit in Terme District of Samsun province as a new colorant source in transparent glaze was investigated. After grinding process of Simenite Lake Sand (SGK), XRD analysis was performed for phase analysis and XRF was used for determination of chemical composition. In order to determine thermal behavior, heat microscopy and TG/DTA analyses were performed. Then SGK was added to transparent glaze in different proportions and applied on ceramic bodies. Finally, coloring parameters of SGK added glazes were determined and the color transition from yellow to reddish-brown was observed.