KINIK VE AVANOS KIRMIZI ÇÖMLEK KİLLERİNİN SERAMİK HAM SIR BİLEŞİMİNDE YARATTIĞI DEĞİŞİKLİKLERİN İNCELENMESİ
AN EXAMINATION OF THE CHANGES ON THE RAW GLAZE COMPOSITIONS AFTER THE ADDITION OF AVANOS AND KINIK CLAYS

Summary/Abstract: Avanos, as a town located in Nevşehir and Kınık village in Pazaryeri, Bilecik, are among the most prominent well-known red clay deposits in Turkey. The common characteristic specific to these both sites is the fact that the percentage of iron oxide (%Fe2O3) in clays extracted from Avanos and Kınık deposits is above 7 (seven). Within this study, it was aimed to examine the changes and artistic effects occurring after the red clays from Avanos and Kınık deposits were added to glaze as colorant, in the absence of pure kaolin. Along with this aim, Avanos and Kınık clays were added to raw glaze compositions, and this blend was applied to tablets made through the proportioned mixture of chamotte clay (fireclay), red earth pottery clay and casting clay. In addition to that, pure Avanos kaolin was added at the same amount to raw glaze composition instead of Avanos and Kınık clays and this composition was applied to the tablets as well, produced through the use of same clays in order to obtain comparative results. Furthermore, additional tests were conducted by adding Avanos and Kınık clays as iron-oxide source to the blend of aventurine glaze, glossy crackle glaze and transparent glaze. Glaze compositions applied to tabled were fired at 1050 Celsius degrees, and the effects were examined carefully in terms of glaze fit, compatibility between glaze and clay body, glaze colours, the degree of being matte and glossy and aesthetics. The results indicated that Avanos and Kınık clays, used as the pottery clay in the absence of pure kaolin, could be utilized as substitute of kaolin, and the addition of these clays to glaze compositions lead to small-scale colour changes and artistic effects.

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