In an other article, we explained other two products of traditional ceramics which are abrasives and bricks, tiles. Also there are other very important applications of traditional ceramics. These are tablewares and refractories. In this article, we explained these two applications of traditional ceramic materials.
In industry, refractoriness of some materials and parts is very important in such crucibles, furnaces etc. For example at casting of iron, temperatures high as 1600 celsius degrees. A refractory material has property of high temperature resistance, thermal insulation and resistance to chemical reaction. The most important traditional ceramic material that is used for refractory purpose is alumina. Alumina is used with silica to obtain very efficient refractory material. highest firing temperature to obtain finer products. Magnesium oxide and Calcium oxide materials are also very important materials for recfractoriness. In general applications, refractory lining has two layers. The first layer has more porous structure, which increases thermal insulation properties.
As you know from basic history knowledges, pottery has very long history especially in China. General pottery products that produced from traditional ceramic materials; earthenware, stoneware and china. Earhenware is the most porous one and generally glazed. Glazing is a special coating application. Stoneware is less porous one and obtained with higher firing applications. Porcelain is like china and obtained with firing of clay, silica and feldspar. Porcelain has also very important applications in engineering such as electrical insulation. The structure and properties of china is also like porcelain.
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