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A ceramic can be an inorganic, nonmetallic[a] sound material comprising metal, nonmetal or metalloid atoms primarily held in ionic and covalent bonds. The crystallinity of ceramic materials ranges from oriented to semi-crystalline highly, and often completely amorphous (e.g., spectacles). Varying crystallinity and electron utilization in the ionic and covalent bonds cause most ceramic materials to be good thermal and electrical power insulators (thoroughly explored in ceramic executive). With such a sizable range of possible options for the composition/structure of the ceramic (e.g. every one of the elements practically, all types of bonding nearly, and all degrees of crystallinity), the breadth of the subject is vast, and identifiable characteristics (e.g. hardness, toughness, electrical power conductivity, etc.) are hard to specify for the 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 of these rules (e.g. piezoelectric ceramics, wine glass transition temps, superconductive ceramics, etc.). Many composites, such as carbon and fiberglass fiber content, while including ceramic materials, aren't regarded as area of the ceramic family.The portrayed phrase "ceramic comes from the Greek word ????????? (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 word "ceramic" may be used as an adjective to spell it out a material, product or process, or it could be used as a noun, either singular, or, additionally, as the plural noun "ceramics".The initial 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, solidified, sintered, in hearth. Ceramics were glazed and terminated to generate even later, colored surfaces, reducing 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. Inside the 20th hundred years, new ceramic materials were developed for use in advanced ceramic executive, such as with semiconductors.Ceramic artifacts offer an important role in archaeology for understanding the culture, patterns and technology of individuals of days gone by. These are among the most common artifacts to be found at an archaeological site, generally in the form of small fragments of broken pottery called sherds. Processing of collected sherds can be consistent with two main types of research: specialized and traditional.Traditional analysis consists of sorting ceramic artifacts, sherds and larger fragments into specific types based 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 scientific status of the public people among other conclusions. Furthermore, by looking at stylistic changes of ceramics as time passes is it possible to 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 portions.[13]The technical approach to ceramic analysis consists of a finer study of the composition of ceramic artifacts and sherds to look for the source of the materials and through this the possible developing site. Key standards are the composition of the clay and the temper found in the production of the article under review: temper is a materials put into the clay during the initial production stage, and it is utilized to aid the next drying process. Types of temper include shell portions, granite fragments and surface sherd parts called 'grog'. Temper is usually discovered by microscopic examination of the temper material. 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 clay and temper compositions, and locating a region where both are known to occur, an project of the materials source can be made. From the source project of the artifact further investigations can be made into the site of produce.
Home Page / Iznik Ceramics / Iznik Ceramic Plates
Home Page / Iznik Ceramics / Iznik Ceramic Plates
Home Page / Iznik Ceramics / Iznik Ceramic Plates
Home Page / Iznik Ceramics / Iznik Ceramic Plates
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A ceramic can be an inorganic, nonmetallic[a] sound material comprising metal, nonmetal or metalloid atoms primarily held in ionic and covalent bonds. The crystallinity of ceramic materials ranges from oriented to semi-crystalline highly, and often completely amorphous (e.g., spectacles). Varying crystallinity and electron utilization in the ionic and covalent bonds cause most ceramic materials to be good thermal and electrical power insulators (thoroughly explored in ceramic executive). With such a sizable range of possible options for the composition/structure of the ceramic (e.g. every one of the elements practically, all types of bonding nearly, and all degrees of crystallinity), the breadth of the subject is vast, and identifiable characteristics (e.g. hardness, toughness, electrical power conductivity, etc.) are hard to specify for the 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 of these rules (e.g. piezoelectric ceramics, wine glass transition temps, superconductive ceramics, etc.). Many composites, such as carbon and fiberglass fiber content, while including ceramic materials, aren't regarded as area of the ceramic family.
The portrayed phrase "ceramic comes from the Greek word ????????? (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 word "ceramic" may be used as an adjective to spell it out a material, product or process, or it could be used as a noun, either singular, or, additionally, as the plural noun "ceramics".
The initial 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, solidified, sintered, in hearth. Ceramics were glazed and terminated to generate even later, colored surfaces, reducing 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. Inside the 20th hundred years, new ceramic materials were developed for use in advanced ceramic executive, such as with semiconductors.
Traditional analysis consists of sorting ceramic artifacts, sherds and larger fragments into specific types based 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 scientific status of the public people among other conclusions. Furthermore, by looking at stylistic changes of ceramics as time passes is it possible to 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 portions.[13]The technical approach to ceramic analysis consists of a finer study of the composition of ceramic artifacts and sherds to look for the source of the materials and through this the possible developing site. Key standards are the composition of the clay and the temper found in the production of the article under review: temper is a materials put into the clay during the initial production stage, and it is utilized to aid the next drying process. Types of temper include shell portions, granite fragments and surface sherd parts called 'grog'. Temper is usually discovered by microscopic examination of the temper material. 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 clay and temper compositions, and locating a region where both are known to occur, an project of the materials 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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