Ceramics are compound of metallic and non-metallic materials. It has properties of high compressive strength, low thermal expansion, high elasticity, high hardness, high wear resistance, and low electrical and thermal conductivity. Ceramics are used for tiles, pottery, and sanitary wares (porcelain). The raw materials used for ceramics are clay having fine sheet like structure, kaolin (silicate of aluminium) used as clay, flint, and feldspar.
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