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China Ceramic Plate With Special Design China Ceramic Plate, Ceramic
A ceramic is an inorganic, nonmetallic[a] solid 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 often completely amorphous (e.g., glasses). Varying crystallinity and electron usage in the ionic and covalent bonds cause most ceramic materials to be good thermal and electrical insulators (extensively investigated in ceramic anatomist). With such a sizable selection of possible options for the structure/structure of a ceramic (e.g. nearly all of the elements, all sorts of bonding practically, and all degrees of crystallinity), the breadth of the subject is huge, and identifiable qualities (e.g. hardness, toughness, electric powered conductivity, etc.) are hard to designate for the group all together. General properties such as high melting temperature, high hardness, poor conductivity, high moduli of elasticity, chemical resistance and low ductility are the norm,[1] with known exceptions to each one of these rules (e.g. piezoelectric ceramics, glass transition temperature, superconductive ceramics, etc.). Many composites, such as fiberglass and carbon fiber, while containing ceramic materials, are not considered to be area of the ceramic family.The indicated word "ceramic comes from the Greek phrase ????????? (keramikos), "of pottery" or "for pottery",[3] from ??????? (keramos), "potter's clay, tile, pottery".[4] The earliest known reference to the root "ceram-" is the Mycenaean Greek ke-ra-me-we, "workers of ceramics", written in Linear B syllabic script.[5] The term "ceramic" may be used as an adjective to describe a material, process or product, or it might be used as a noun, either singular, or, more commonly, as the plural noun "ceramics".The earliest ceramics made by humans were pottery objects, including 27,000-year-old figurines, made from clay, either alone or mixed with other materials like silica, hardened, sintered, in flame. Ceramics were glazed and fired to generate simple later, colored surfaces, lowering porosity by using glassy, amorphous ceramic coatings on top of the crystalline ceramic substrates.[7] Ceramics now include local, professional and building products, as well as a wide range of ceramic art. Inside the 20th century, new ceramic materials were developed for use in advanced ceramic anatomist, such as with semiconductors.Ceramic artifacts have an important role in archaeology for understanding the culture, technology and habit of peoples of the past. These are among the most common artifacts found at an archaeological site, generally in the form of small fragments of broken pottery called sherds. Handling of accumulated sherds can be steady with two main types of evaluation: complex and traditional.Traditional analysis requires sorting ceramic artifacts, sherds and much larger fragments into specific types predicated on style, composition, morphology and manufacturing. By creating these typologies it is possible to distinguish between different cultural styles, the goal of the ceramic and technological state of the people among other conclusions. In addition, by looking at stylistic changes of ceramics over time can you really separate (seriate) the ceramics into distinct diagnostic groups (assemblages). A comparison of ceramic artifacts with known dated assemblages allows for a chronological project of these pieces.[13]The technical method of ceramic analysis entails a finer study of the composition of ceramic artifacts and sherds to look for the source of the material and through this the possible processing site. Key criteria are the composition of the clay and the temper found in the produce of the article under research: temper is a materials put into the clay during the initial production level, and it is used to aid the subsequent drying out process. Types of temper include shell parts, granite fragments and earth sherd parts 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 the temper and clay compositions, and locating a region where both are recognized to occur, an task of the material source can be made. From the source project of the artifact further investigations can be made into the site of produce.
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A ceramic is an inorganic, nonmetallic[a] solid 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 often completely amorphous (e.g., glasses). Varying crystallinity and electron usage in the ionic and covalent bonds cause most ceramic materials to be good thermal and electrical insulators (extensively investigated in ceramic anatomist). With such a sizable selection of possible options for the structure/structure of a ceramic (e.g. nearly all of the elements, all sorts of bonding practically, and all degrees of crystallinity), the breadth of the subject is huge, and identifiable qualities (e.g. hardness, toughness, electric powered conductivity, etc.) are hard to designate for the group all together. General properties such as high melting temperature, high hardness, poor conductivity, high moduli of elasticity, chemical resistance and low ductility are the norm,[1] with known exceptions to each one of these rules (e.g. piezoelectric ceramics, glass transition temperature, superconductive ceramics, etc.). Many composites, such as fiberglass and carbon fiber, while containing ceramic materials, are not considered to be area of the ceramic family.
The indicated word "ceramic comes from the Greek phrase ????????? (keramikos), "of pottery" or "for pottery",[3] from ??????? (keramos), "potter's clay, tile, pottery".[4] The earliest known reference to the root "ceram-" is the Mycenaean Greek ke-ra-me-we, "workers of ceramics", written in Linear B syllabic script.[5] The term "ceramic" may be used as an adjective to describe a material, process or product, or it might be used as a noun, either singular, or, more commonly, as the plural noun "ceramics".
The earliest ceramics made by humans were pottery objects, including 27,000-year-old figurines, made from clay, either alone or mixed with other materials like silica, hardened, sintered, in flame. Ceramics were glazed and fired to generate simple later, colored surfaces, lowering porosity by using glassy, amorphous ceramic coatings on top of the crystalline ceramic substrates.[7] Ceramics now include local, professional and building products, as well as a wide range of ceramic art. Inside the 20th century, new ceramic materials were developed for use in advanced ceramic anatomist, such as with semiconductors.
Ceramic artifacts have an important role in archaeology for understanding the culture, technology and habit of peoples of the past. These are among the most common artifacts found at an archaeological site, generally in the form of small fragments of broken pottery called sherds. Handling of accumulated sherds can be steady with two main types of evaluation: complex and traditional.
Traditional analysis requires sorting ceramic artifacts, sherds and much larger fragments into specific types predicated on style, composition, morphology and manufacturing. By creating these typologies it is possible to distinguish between different cultural styles, the goal of the ceramic and technological state of the people among other conclusions. In addition, by looking at stylistic changes of ceramics over time can you really separate (seriate) the ceramics into distinct diagnostic groups (assemblages). A comparison of ceramic artifacts with known dated assemblages allows for a chronological project of these pieces.[13]The technical method of ceramic analysis entails a finer study of the composition of ceramic artifacts and sherds to look for the source of the material and through this the possible processing site. Key criteria are the composition of the clay and the temper found in the produce of the article under research: temper is a materials put into the clay during the initial production level, and it is used to aid the subsequent drying out process. Types of temper include shell parts, granite fragments and earth sherd parts 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 the temper and clay compositions, and locating a region where both are recognized to occur, an task of the material source can be made. From the source project of the artifact further investigations can be made into the site of produce.
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