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1000 images about Pottery Ideas on Pinterest Pottery, Handmade
A ceramic can be an inorganic, nonmetallic[a] solid material comprising metal, nonmetal or metalloid atoms mainly held in ionic and covalent bonds. The crystallinity of ceramic materials ranges from oriented to semi-crystalline highly, and frequently completely amorphous (e.g., spectacles). Varying crystallinity and electron ingestion in the ionic and covalent bonds cause most ceramic materials to be good thermal and electrical insulators (extensively explored in ceramic engineering). With such a sizable selection of possible options for the composition/structure of any ceramic (e.g. all the elements almost, all types of bonding almost, and all levels of crystallinity), the breadth of the subject is vast, and identifiable features (e.g. hardness, toughness, electrical power conductivity, etc.) are hard to designate 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 are the norm,[1] with known exceptions to each one of these rules (e.g. piezoelectric ceramics, cup transition heat range, superconductive ceramics, etc.). Many composites, such as carbon and fiberglass dietary fiber, while made up of ceramic materials, are not considered to be area of the ceramic family.The expressed word "ceramic comes from the Greek phrase ????????? (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, "individuals of ceramics", written in Linear B syllabic script.[5] The word "ceramic" can be utilized as an adjective to describe a material, product or process, or it might be used as a noun, either singular, or, additionally, as the plural noun "ceramics".The earliest ceramics created by humans were pottery items, including 27,000-year-old figurines, made from clay, either alone or mixed with other materials like silica, solidified, sintered, in flames. Ceramics were glazed and terminated to generate easy later, colored surfaces, decreasing porosity by using glassy, amorphous ceramic coatings on top of the crystalline ceramic substrates.[7] Ceramics now include domestic, commercial and building products, as well as an array of ceramic art. Within the 20th hundred years, new ceramic materials were developed for use in advanced ceramic engineering, such just as semiconductors.Ceramic artifacts offer an important role in archaeology for understanding the culture, technology and action of peoples of days gone by. They are among the most typical artifacts to be found at an archaeological site, generally by means of small fragments of broken pottery called sherds. Handling of gathered sherds can be regular with two main types of research: technological and traditional.Traditional analysis consists of sorting ceramic artifacts, sherds and greater fragments into specific types predicated on style, composition, manufacturing and morphology. By creating these typologies you'll be able to distinguish between different cultural styles, the purpose of the ceramic and technological state of the public people among other conclusions. Furthermore, by looking at stylistic changes of ceramics over time is it possible to separate (seriate) the ceramics into distinct diagnostic groups (assemblages). A comparison of ceramic artifacts with known dated assemblages permits a chronological project of these items.[13]The technical approach to ceramic analysis will involve a finer examination of the structure of ceramic artifacts and sherds to determine the way to obtain the materials and through this the possible processing site. Key standards are the structure of the clay and the temper used in the produce of the article under research: temper is a materials added to the clay during the initial production level, and it is employed to aid the subsequent drying process. Types of temper include shell pieces, granite fragments and surface sherd portions called 'grog'. Temper is identified by microscopic examination of the temper material usually. Clay identification is determined by 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 an area where both are known to occur, an task of the materials source can be made. From the source task of the artifact further investigations can be produced in to the site of manufacture.
Winemaker Ron Brown used copper pipe insulation with Bird of Paradise
A ceramic can be an inorganic, nonmetallic[a] solid material comprising metal, nonmetal or metalloid atoms mainly held in ionic and covalent bonds. The crystallinity of ceramic materials ranges from oriented to semi-crystalline highly, and frequently completely amorphous (e.g., spectacles). Varying crystallinity and electron ingestion in the ionic and covalent bonds cause most ceramic materials to be good thermal and electrical insulators (extensively explored in ceramic engineering). With such a sizable selection of possible options for the composition/structure of any ceramic (e.g. all the elements almost, all types of bonding almost, and all levels of crystallinity), the breadth of the subject is vast, and identifiable features (e.g. hardness, toughness, electrical power conductivity, etc.) are hard to designate 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 are the norm,[1] with known exceptions to each one of these rules (e.g. piezoelectric ceramics, cup transition heat range, superconductive ceramics, etc.). Many composites, such as carbon and fiberglass dietary fiber, while made up of ceramic materials, are not considered to be area of the ceramic family.
The expressed word "ceramic comes from the Greek phrase ????????? (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, "individuals of ceramics", written in Linear B syllabic script.[5] The word "ceramic" can be utilized as an adjective to describe a material, product or process, or it might be used as a noun, either singular, or, additionally, as the plural noun "ceramics".
The earliest ceramics created by humans were pottery items, including 27,000-year-old figurines, made from clay, either alone or mixed with other materials like silica, solidified, sintered, in flames. Ceramics were glazed and terminated to generate easy later, colored surfaces, decreasing porosity by using glassy, amorphous ceramic coatings on top of the crystalline ceramic substrates.[7] Ceramics now include domestic, commercial and building products, as well as an array of ceramic art. Within the 20th hundred years, new ceramic materials were developed for use in advanced ceramic engineering, such just as semiconductors.
Ceramic artifacts offer an important role in archaeology for understanding the culture, technology and action of peoples of days gone by. They are among the most typical artifacts to be found at an archaeological site, generally by means of small fragments of broken pottery called sherds. Handling of gathered sherds can be regular with two main types of research: technological and traditional.
Traditional analysis consists of sorting ceramic artifacts, sherds and greater fragments into specific types predicated on style, composition, manufacturing and morphology. By creating these typologies you'll be able to distinguish between different cultural styles, the purpose of the ceramic and technological state of the public people among other conclusions. Furthermore, by looking at stylistic changes of ceramics over time is it possible to separate (seriate) the ceramics into distinct diagnostic groups (assemblages). A comparison of ceramic artifacts with known dated assemblages permits a chronological project of these items.[13]The technical approach to ceramic analysis will involve a finer examination of the structure of ceramic artifacts and sherds to determine the way to obtain the materials and through this the possible processing site. Key standards are the structure of the clay and the temper used in the produce of the article under research: temper is a materials added to the clay during the initial production level, and it is employed to aid the subsequent drying process. Types of temper include shell pieces, granite fragments and surface sherd portions called 'grog'. Temper is identified by microscopic examination of the temper material usually. Clay identification is determined by 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 an area where both are known to occur, an task of the materials source can be made. From the source task of the artifact further investigations can be produced in to the site of manufacture.
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