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Ceramic glaze, or simply glaze, is a glassy coating on ceramics. It is used for decoration, to ensure the item is impermeable to liquids and to minimize the adherence of pollutants. It is used for decoration, to ensure the item is impermeable to liquids and to minimize the adherence of pollutants.
Porcelain tiles or ceramic tiles are either tiles made of porcelain, or relatively tough ceramic tiles made with a variety of materials and methods, that are suitable for use as floor tiles, or for walls. They have a low water absorption rate, generally less than 0.5 percent. The clay used to build porcelain tiles is generally denser than ...
A porcelain tile has been defined as 'a ceramic mosaic tile or paver that is generally made by the dust-pressed method of a composition resulting in a tile that is dense, fine-grained, and smooth with sharply formed face, usually impervious and having colors of the porcelain type which are usually of a clear, luminous type or granular blend ...
Early 14th-century tile with inscription: letters in underglaze cobalt blue, the arabesque background in lustre. Probably Kashan . A large part of Persian lustreware production was in the form of tiles, usually star-shaped, with central animal or human figures, mostly single or in pairs, and ornament around the edges, and sometimes inscriptions.
Ceramic material is an inorganic, metallic oxide, nitride, or carbide material. Some elements, such as carbon or silicon, may be considered ceramics. Ceramic materials are brittle, hard, strong in compression, and weak in shearing and tension. They withstand the chemical erosion that occurs in other materials subjected to acidic or caustic ...
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The ISO 13006 defines a "porcelain tile" as a "fully vitrified tile with water absorption less than or equal to 0.5%, belonging to groups AIa and BIa (of ISO 13006).". [19] The ANSI defines as "a ceramic tile that has 'a water absorption of 0.5%' or less.” It is made generally by the pressed or extruded method."
Conservation and restoration of ceramic objects is a process dedicated to the preservation and protection of objects of historical and personal value made from ceramic. Typically, this activity of conservation-restoration is undertaken by a conservator-restorer , especially when dealing with an object of cultural heritage .