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Sır, seramik bünyeyi ince bir tabaka halinde kaplayarak onun üzerinde ergiyen cam veya camsı oluşumdur. Seramik sırlarında aranan en büyük özellik, üzerine çekildikleri bünyeyle normal koşullarda fiziksel ve kimyasal bağlar kurmalarıdır. Sırlar ortak karakteristiklerine göre değerlendirilerek çeşitli sınıflandırmalara tabi tutulmuşlardır (bileşimlerine göre firitli ve firitsiz optik özelliklerine göre saydam (şeffaf), örtücü (opak), kristal yüzey özelliklerine göre parlak, mat, krakle (çatlaklı), toplanmalı, akıcı, kristalin, aventurin, redüksiyon sırları gibi). Bu makalede kristalin sır grubuna ait, yüksek alkalili ve kuvarslı sırların demir, bakır ya da krom oksit ile doyurulmaları sonucu elde edilen aventurin sırlardan bahsedilmektedir.
The secret is the formation of a glass or cams that erge on it by covering the ceramic body in a thin layer. The greatest feature that is sought in ceramic secrets is that they establish physical and chemical connections with the body they are drawn on in normal conditions. The secrets are classified according to their common characteristics and are subject to various classifications (frameful and unframeful according to their compositions; optical according to their characteristics, shrimp (transparent), covering (optical), crystal; according to their surface characteristics; bright, mat, crackle (cratched), collective, fluid, crystalline, aventurine, reduction secrets). In this article, the secret group of crystals, high alkaline and quarry secrets are talked about the secrets of aventurine obtained as a result of saturation with iron, copper or chromium oxide.
Glaze is a glassy layer covering ceramic substrates as a thin film (approx. 100 micro meter). The most desired property seeked for in ceramic glazes is to form physical and chemical bonds with substrates onto which they are applied under normal conditions. Glazes can be classified according to common characteristics (depending on composition: fritted and fritless; in terms of optical properties: transparent, opaque, crystalline; with surface properties: glossy, crackle, fluid, matte, crystalline, aventurine, reduction glazes etc.). In the present paper it will be mentioned about aventurine glazes belonging to crystalline glaze group and formed as a result of saturation of high alkali and quartz based glazes with iron, copper or chromium oxides.
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