ceramics
ceramics Objects made of moistened clay that are shaped and then baked. Earthenware, terracotta, brick, tile, faience, majolica, stoneware, and porcelain are all ceramics. Ceramic ware is ornamented by clay inlays, relief modelling on the surface, or by incised, stamped, or impressed designs. A creamy mixture of clay and water (slip) can be used to coat the ware. After drying, ceramic ware is baked in a kiln until it has hardened. Glaze, a silicate preparation applied to the clay surface and fused to it during firing, is used to make the pottery non-porous and to give it a smooth, colourful, decorative surface. In ancient Egypt they developed a faïence with a glaze. Mesopotamia and Persia used large architectural tiles with colourful glazes. In the 6th and 5th centuries bc, the Greeks developed red, black, and white glazed pottery with figures and scenes, while the Romans used relief decoration. Persian, Syrian and Turkish pottery made further improvements. In Spain, lustreware – the first sophisticated ceramic of the modern era – was produced by 9th-century Moors. Italian majolica, Dutch delft, German Meissen, and English Wedgewood were further refinements. Chinese porcelain dates from the T'ang dynasty, and Chinese stoneware goes back to c.3000 bc.
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ceramics