Underglaze Decoration
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Underglaze Decoration
Underglaze is a method of decorating pottery in which painted decoration is applied to the surface before it is covered with a transparent ceramic glaze and fired in a kiln. Because the glaze subsequently covers it, such decoration is completely durable, and it also allows the production of pottery with a surface that has a uniform sheen. Underglaze decoration uses pigments derived from oxides which fuse with the glaze when the piece is fired in a kiln. It is also a cheaper method, as only a single firing is needed, whereas overglaze decoration requires a second firing at a lower temperature. Many historical styles, for example Persian mina'i ware, Japanese Imari ware, Chinese doucai and wucai, combine the two types of decoration. In such cases the first firing for the body, underglaze decoration and glaze is followed by the second firing after the overglaze enamels have been applied. However, because the main or glost firing is at a higher temperature than used in overglaze dec ...
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Weight (noshi-osae) In The Form Of Chrysanthemums And Plum Blossoms LACMA M
In science and engineering, the weight of an object is a quantity associated with the gravitational force exerted on the object by other objects in its environment, although there is some variation and debate as to the exact definition. Some standard textbooks define weight as a vector quantity, the gravitational force acting on the object. Others define weight as a scalar quantity, the magnitude of the gravitational force. Yet others define it as the magnitude of the reaction force exerted on a body by mechanisms that counteract the effects of gravity: the weight is the quantity that is measured by, for example, a spring scale. Thus, in a state of free fall, the weight would be zero. In this sense of weight, terrestrial objects can be weightless: so if one ignores air resistance, one could say the legendary apple falling from the tree, on its way to meet the ground near Isaac Newton, was weightless. The unit of measurement for weight is that of force, which in the International ...
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Blue And White Porcelain
"Blue and white pottery" () covers a wide range of white pottery and porcelain decorated underglaze, under the glaze with a blue pigment, generally cobalt(II) oxide, cobalt oxide. The decoration was commonly applied by hand, originally by brush painting, but nowadays by stencilling or by transfer-printing, though other methods of application have also been used. The cobalt pigment is one of the very few that can withstand the highest firing temperatures that are required, in particular for porcelain, which partly accounts for its long-lasting popularity. Historically, many other colours required overglaze decoration and then a second firing at a lower temperature to fix that. The origin of the blue glazes is thought to lie in Iraq, when craftsmen in Basra sought to imitate imported white Chinese stoneware with their own tin-glazed, white pottery and added decorative motifs in blue glazes. Such Abbasid Caliphate, Abbasid-era pieces have been found in present-day Iraq dating to th ...
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Tongguan Subdistrict
Tongguan () is a subdistrict of Wangcheng district, Changsha, China. It is located on the eastern bank of Xiang river, the subdistrict is bordered by Dingziwan subdistrict to the south, Qiaoyi and Chating towns to the east and north, Jinggang Town and Gaotangling subdistrict across the Xiang river to the west. Tongguan has an area of with a population of 50 thousand, its administrative centre is at Huacheng village. the subdistrict has five residential communities and nine villages under its jurisdiction.translation according twangcheng.gov (2016-03-07)/ref> Tongguan is located on the eastern bank of Xiangjiang River in the northern part of Wangcheng District. It has one provincial-level cultural relic protection unit, one municipal-level cultural relic protection unit, four county-level cultural relic protection unit and two county-level cultural relic site. Tongguan has been known as "Town of Ceramics" and "Ancient Tongguan Town". Tongguan is a national famous tourism town w ...
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Tang Dynasty
The Tang dynasty (, ; zh, c=唐朝), or the Tang Empire, was an Dynasties of China, imperial dynasty of China that ruled from 618 to 907, with an Wu Zhou, interregnum between 690 and 705. It was preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdoms period. Historians generally regard the Tang as a high point in Chinese civilisation, and a Golden age (metaphor), golden age of cosmopolitan culture. Tang territory, acquired through the military campaigns of its early rulers, rivalled that of the Han dynasty. The House of Li, Li family founded the dynasty after taking advantage of a period of Sui decline and precipitating their final collapse, in turn inaugurating a period of progress and stability in the first half of the dynasty's rule. The dynasty was formally interrupted during 690–705 when Empress Wu Zetian seized the throne, proclaiming the Wu Zhou dynasty and becoming the only legitimate Chinese empress regnant. The An Lushan rebellion (755 ...
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Changsha Tongguan Kiln Site
The Tongguan Kiln (), also called the Changsha Kiln, is located in Wazhaping (), Tongguan Subdistrict, Changsha, Hunan, China. It is one of the major kiln sites in Tongguan to be protected at the national level. The place was a historical kiln site of potteries in the Tang (618–907 AD) and Five Dynasties periods (907–960 AD). The site covers about 68 hectares and found in 1956, it was the source place of underglaze by the Palace Museum The Palace Museum (), also known as the Beijing Palace Museum, is a large national museum complex housed in the Forbidden City at the core of Beijing, China. With , the museum inherited the imperial royal palaces from the Ming and Qing dynast ...'s identification in 1957. The place was published one of the Major Historical and Cultural Sites Protected at the National Level by the State Council in January 1988, and was classified as one of the 100 Great Sites Protection Plan from 2006.the 100 Great Sites Protection Plan of ChinaGreat ...
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Excavation (archaeology)
In archaeology, excavation is the exposure, processing and recording of archaeological remains. An excavation site or "dig" is the area being studied. These locations range from one to several areas at a time during a project and can be conducted over a few weeks to several years. Excavation involves the recovery of several types of data from a site. This data includes artifacts (portable objects made or modified by humans), features (non-portable modifications to the site itself such as post molds, burials, and hearths), ecofacts (evidence of human activity through organic remains such as animal bones, pollen, or charcoal), and archaeological context (relationships among the other types of data).Kelly&Thomas (2011). ''Archaeology: down to earth'' (4th ed.). Belmont, Calif.: Wadsworth, Cengage Learning. Before excavating, the presence or absence of archaeological remains can often be suggested by, non-intrusive remote sensing, such as ground-penetrating radar. Basic inf ...
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Delftware
Delftware or Delft pottery, also known as Delft Blue () or as delf, is a general term now used for Dutch tin-glazed earthenware, a form of faience. Most of it is blue and white pottery, and the city of Delft in the Netherlands was the major centre of production, but the term covers wares with other colours, and made elsewhere. It is also used for similar pottery, English delftware. Delftware is one of the types of tin-glazed pottery or faience in which a white glaze is applied, usually decorated with metal oxides, in particular the cobalt oxide that gives the usual blue, and can withstand high firing temperatures, allowing it to be applied under the glaze. Delftware forms part of the worldwide family of blue and white pottery, using variations of the plant-based decoration first developed in 14th-century Chinese porcelain, and in great demand in Europe. Delftware includes pottery objects of all descriptions, such as plates, vases, figurines and other ornamental forms and ...
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Egyptian Faience
Egyptian faience is a sintered-quartz ceramic material from Ancient Egypt. The sintering process "covered [the material] with a true vitreous coating" as the quartz underwent vitrification, creating a bright lustre of various colours "usually in a transparent blue or green isotropic glass". Its name in the Ancient Egyptian language was , and modern archeological terms for it include sintered quartz, glazed frit, and glazed composition. is distinct from the crystalline pigment Egyptian blue, for which it has sometimes incorrectly been used as a synonym. It is not faience in the usual sense of tin-glazed pottery, and is different from the enormous range of clay-based Ancient Egyptian pottery, from which utilitarian vessels were made. It is similar to later Islamic stonepaste (or "fritware") from the Middle East, although that generally includes more clay. Egyptian faience is considerably more porous than glass proper. It can be cast in molds to create small vessels, jewelry and d ...
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Maiolica
Maiolica is tin-glazed pottery decorated in colours on a white background. The most renowned Italian maiolica is from the Renaissance period. These works were known as ''istoriato'' wares ("painted with stories") when depicting historical and mythical scenes. By the late 15th century, multiple locations,L. Arnoux, 1877, British Manufacturing Industries – Pottery "Most of the Italian towns had their manufactory, each of them possessing a style of its own. Beginning at Caffagiolo and Deruta, they extended rapidly to Gubbio, Ferrara, and Ravenna, to be continued to Casteldurante, Rimini, Urbino, Florence, Venice, and many other places." mainly in northern and central Italy, were producing sophisticated pieces for a luxury market in Italy and beyond. In France, maiolica developed as faience, in the Netherlands and England as delftware, and in Spain as talavera. In English, the spelling was anglicised to ''majolica'' (). Name The name is thought to come from the medieval Ital ...
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Tin-glazed Pottery
Tin-glazed pottery is earthenware covered in lead glaze with added tin oxide which is white, shiny and opaque (see tin-glazing for the chemistry); usually this provides a background for brightly painted decoration. It has been important in Islamic and European pottery, but very little used in East Asia. The pottery body is usually made of red or buff-colored earthenware and the white glaze imitated Chinese porcelain. The decoration on tin-glazed pottery is usually applied to the unfired glaze surface by brush with metallic oxides, commonly cobalt oxide, copper oxide, iron oxide, manganese dioxide and antimony oxide. The makers of Italian tin-glazed pottery from the late Renaissance blended oxides to produce detailed and realistic polychrome paintings. The earliest tin-glazed pottery appears to have been made in Iraq in the 9th century, the oldest fragments having been excavated during the First World War from the palace of Samarra about fifty miles north of Baghdad.Caiger ...
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Blue And White Pottery
"Blue and white pottery" () covers a wide range of white pottery and porcelain decorated under the glaze with a blue pigment, generally cobalt oxide. The decoration was commonly applied by hand, originally by brush painting, but nowadays by stencilling or by transfer-printing, though other methods of application have also been used. The cobalt pigment is one of the very few that can withstand the highest firing temperatures that are required, in particular for porcelain, which partly accounts for its long-lasting popularity. Historically, many other colours required overglaze decoration and then a second firing at a lower temperature to fix that. The origin of the blue glazes is thought to lie in Iraq, when craftsmen in Basra sought to imitate imported white Chinese stoneware with their own tin-glazed, white pottery and added decorative motifs in blue glazes. Such Abbasid-era pieces have been found in present-day Iraq dating to the 9th century AD, decades after the opening o ...
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