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Crazing is a spider web pattern of cracks penetrating the glaze. It is caused by tensile stresses greater than the glaze is able to withstand. [1] [2] Common reasons for such stresses are: a mismatch between the thermal expansions of glaze and body; from moisture expansion of the body; and in the case of glazed tiles fixed to a wall, movement of the wall or of the bonding material used to fix ...
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 .
In ceramics, craquelure in ceramic glazes, where it is often a desired effect, is called "crackle"; it is a characteristic of Chinese Ge ware in particular. This is usually differentiated from crazing , which is a glaze defect in firing, or the result of aging or damage.
Underglaze normally uses a transparent glaze, and therefore reveals the undecorated parts of the fired body. In porcelain these are white, but many of the imitative types, such as Delftware, have brownish earthenware bodies, which are given a white tin-glaze and either inglaze or overglaze decoration.
Hard-paste porcelain was invented in China, and it was also used in Japanese porcelain.Most of the finest quality porcelain wares are made of this material. The earliest European porcelains were produced at the Meissen factory in the early 18th century; they were formed from a paste composed of kaolin and alabaster and fired at temperatures up to 1,400 °C (2,552 °F) in a wood-fired kiln ...
Lacquerware is a longstanding tradition in Japan [6] [7] and, at some point, kintsugi may have been combined with maki-e as a replacement for other ceramic repair techniques. . While the process is associated with Japanese craftsmen, the technique was also applied to ceramic pieces of other origins including China, Vietnam, and Kor
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