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Ceramics: Products
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Architectural ceramics in the form of unglazed terracotta and glazed faience were used to decorate the interiors, façades and roofs of a wide range of buildings in the nineteenth and early twentieth centuries. In the first instance their use was functional, making the buildings weatherproof, fireproof and hygienic, but they could ... be very decorative. This book charts the history of architectural ceramics, focusing on practical and decorative applications, on architects, designers and manufacturers, and on styles and techniques of production and decoration.
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This brief listing serves to provide an indication of just how diverse the techniques employed to fire advanced ceramics are. Each ceramic type has its own special requirement in regard to firing rate, environmental condition and temperature. If these conditions are not met then the quality of the final product and even the formation of the final compounds and densities will not be achieved.
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In the ceramics industry, some lead glazes are still used to color or decorate and to smooth the surface of ceramic products. As long as the clay and glazes are compatible, and these glazes are properly fired (at a high enough temperature and for an appropriate amount of time), the lead is not likely to leach through the surface.
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