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A ceramic is an inorganic, nonmetallic[a] sound material comprising metal, nonmetal or metalloid atoms held in ionic and covalent bonds primarily. The crystallinity of ceramic materials ranges from oriented to semi-crystalline highly, and frequently completely amorphous (e.g., spectacles). Differing crystallinity and electron utilization in the ionic and covalent bonds cause most ceramic materials to be good thermal and electric insulators (thoroughly investigated in ceramic anatomist). With such a big selection of possible options for the composition/structure of any ceramic (e.g. all of the elements nearly, all types of bonding almost, and all degrees of crystallinity), the breadth of the subject is great, and identifiable characteristics (e.g. hardness, toughness, electric conductivity, etc.) are hard to specify for the combined group as a whole. General properties such as high melting temperature, high hardness, poor conductivity, high moduli of elasticity, chemical resistance and low ductility will be the norm,[1] with known exceptions to each one of these rules (e.g. piezoelectric ceramics, goblet transition heat range, superconductive ceramics, etc.). Many composites, such as fiberglass and carbon fiber content, while made up of ceramic materials, aren't regarded as part of the ceramic family.The term "ceramic originates from the Greek term ????????? (keramikos), "of pottery" or "for pottery",[3] from ??????? (keramos), "potter's clay, tile, pottery".[4] The initial known reference to the main "ceram-" is the Mycenaean Greek ke-ra-me-we, "personnel of ceramics", written in Linear B syllabic script.[5] The term "ceramic" can be utilized as an adjective to spell it out a material, process or product, or it may be used as a noun, either singular, or, more commonly, as the plural noun "ceramics".The initial ceramics made by humans were pottery items, including 27,000-year-old figurines, made from clay, either by itself or mixed with other materials like silica, hardened, sintered, in fireplace. Later ceramics were glazed and fired to produce clean, colored surfaces, lessening porosity through the use of glassy, amorphous ceramic coatings together with the crystalline ceramic substrates.[7] Ceramics now include domestic, commercial and building products, as well as a variety of ceramic art. Within the 20th hundred years, new ceramic materials were developed for use in advanced ceramic anatomist, such such as semiconductors.Ceramic artifacts own an important role in archaeology for understanding the culture, tendencies and technology of peoples of the past. They can be among the most common artifacts found at an archaeological site, generally by means of small fragments of broken pottery called sherds. Processing of accumulated sherds can be constant with two main types of analysis: specialized and traditional.Traditional analysis consists of sorting ceramic artifacts, sherds and greater fragments into specific types predicated on style, composition, morphology and manufacturing. By creating these typologies you'll be able to distinguish between different cultural styles, the purpose of the ceramic and technological state of people among other conclusions. In addition, by looking at stylistic changes of ceramics over time is it possible to separate (seriate) the ceramics into distinct diagnostic groups (assemblages). An evaluation of ceramic artifacts with known dated assemblages permits a chronological task of these portions.[13]The technical method of ceramic analysis includes a finer study of the structure of ceramic artifacts and sherds to determine the source of the material and through this the possible creation site. Key standards are the composition of the clay and the temper found in the produce of this article under study: temper is a materials added to the clay during the initial production level, and it is used to aid the next drying process. Types of temper include shell portions, granite fragments and ground sherd items called 'grog'. Temper is usually discovered by microscopic examination of the temper material. Clay identification depends upon an activity of refiring the ceramic, and assigning a color to it using Munsell Soil Color notation. By estimating both temper and clay compositions, and locating a region where both are recognized to occur, an assignment of the material source can be produced. From the source project of the artifact further investigations can be produced in to the site of make.
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China Ceramic Plate China Ceramic Plate Item, Ceramic Plate Gift
Ceramics Plates, Flower Design, Blue Flower, Decor Plates
Home Page / Iznik Ceramics / Iznik Ceramic Plates
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A ceramic is an inorganic, nonmetallic[a] sound material comprising metal, nonmetal or metalloid atoms held in ionic and covalent bonds primarily. The crystallinity of ceramic materials ranges from oriented to semi-crystalline highly, and frequently completely amorphous (e.g., spectacles). Differing crystallinity and electron utilization in the ionic and covalent bonds cause most ceramic materials to be good thermal and electric insulators (thoroughly investigated in ceramic anatomist). With such a big selection of possible options for the composition/structure of any ceramic (e.g. all of the elements nearly, all types of bonding almost, and all degrees of crystallinity), the breadth of the subject is great, and identifiable characteristics (e.g. hardness, toughness, electric conductivity, etc.) are hard to specify for the combined group as a whole. General properties such as high melting temperature, high hardness, poor conductivity, high moduli of elasticity, chemical resistance and low ductility will be the norm,[1] with known exceptions to each one of these rules (e.g. piezoelectric ceramics, goblet transition heat range, superconductive ceramics, etc.). Many composites, such as fiberglass and carbon fiber content, while made up of ceramic materials, aren't regarded as part of the ceramic family.
The term "ceramic originates from the Greek term ????????? (keramikos), "of pottery" or "for pottery",[3] from ??????? (keramos), "potter's clay, tile, pottery".[4] The initial known reference to the main "ceram-" is the Mycenaean Greek ke-ra-me-we, "personnel of ceramics", written in Linear B syllabic script.[5] The term "ceramic" can be utilized as an adjective to spell it out a material, process or product, or it may be used as a noun, either singular, or, more commonly, as the plural noun "ceramics".
The initial ceramics made by humans were pottery items, including 27,000-year-old figurines, made from clay, either by itself or mixed with other materials like silica, hardened, sintered, in fireplace. Later ceramics were glazed and fired to produce clean, colored surfaces, lessening porosity through the use of glassy, amorphous ceramic coatings together with the crystalline ceramic substrates.[7] Ceramics now include domestic, commercial and building products, as well as a variety of ceramic art. Within the 20th hundred years, new ceramic materials were developed for use in advanced ceramic anatomist, such such as semiconductors.
Ceramic artifacts own an important role in archaeology for understanding the culture, tendencies and technology of peoples of the past. They can be among the most common artifacts found at an archaeological site, generally by means of small fragments of broken pottery called sherds. Processing of accumulated sherds can be constant with two main types of analysis: specialized and traditional.
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