The word ceramic is derived from the Greek word κεραμικος (keramikos, "having to do with pottery"). The term covers inorganic non-metallic materials whose formation is due to the action of heat. Up until the 1950s or so, the most important of these were the traditional clays, made into pottery, bricks, tiles and the like, along with cements and glass. The traditional crafts are described in the article on pottery. A composite ma ...

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Ceramics - Classifications of technical ceramics
Ceramics - Examples of ceramic materials
Ceramics - Properties of ceramics
Ceramics - Mechanical properties Ceramics - Electrical properties
Ceramics - Processing of ceramic materials
Ceramics - In situ manufacturing Ceramics - Sintering-based methods
Ceramics - Other applications of ceramics

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Ceramic, Ceramic - Classifications of technical ceramics, Ceramic - Examples of ceramic materials, Ceramic - Properties of ceramics, Ceramic - Mechanical properties, Ceramic - Electrical properties, Ceramic - Processing of ceramic materials, Ceramic - In situ manufacturing, Ceramic - Sintering-based methods, Ceramic - Other applications of ceramics

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Technical Ceramics can also be classified into three distinct material categories: Oxides: Alumina, zirconia Non-oxides: Carbides, borides, nitrides, silicides Composites: Particulate reinforced, combinations of oxides and non-oxides. Each one of these classes can develop unique material properties Ceramic - Examples of ceramic materials. Barium strontium calcium copper oxide, a high-temperature superconductor Barium titanate (often mixed with str ...

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Ceramic, Ceramic - Classifications of technical ceramics, Ceramic - Examples of ceramic materials, Ceramic - Properties of ceramics, Ceramic - Mechanical properties, Ceramic - Electrical properties, Ceramic - Processing of ceramic materials, Ceramic - In situ manufacturing, Ceramic - Sintering-based methods, Ceramic - Other applications of ceramics

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Ceramic - Mechanical properties. Ceramic materials are usually ionic or covalently-bonded materials, and can be crystalline or amorphous. A material held together by either type of bond will tend to fracture before any plastic deformation takes place, which results in poor toughness in these materials. Additionally, because these materials tend to be porous, the pores and other microscopic imperfections act as stress concentrators, decreasing the toughness further, and reducing the tensile strength. These combine to give catastrophic failures, as opposed to the ...

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Ceramic, Ceramic - Classifications of technical ceramics, Ceramic - Examples of ceramic materials, Ceramic - Properties of ceramics, Ceramic - Mechanical properties, Ceramic - Electrical properties, Ceramic - Processing of ceramic materials, Ceramic - In situ manufacturing, Ceramic - Sintering-based methods, Ceramic - Other applications of ceramics

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A couple of decades ago, Toyota researched production of an adiabatic ceramic engine which can run at a temperature of over 6000 °F (3300 °C). Ceramic engines do not require a cooling system and hence allow a major weight reduction and therefore greater fuel efficiency. Fuel efficiency of the engine is also higher at high temperature. In a conventional metallic engine, much of the energy released from the fuel must be dissipated as waste ...

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Ceramic, Ceramic - Classifications of technical ceramics, Ceramic - Examples of ceramic materials, Ceramic - Properties of ceramics, Ceramic - Mechanical properties, Ceramic - Electrical properties, Ceramic - Processing of ceramic materials, Ceramic - In situ manufacturing, Ceramic - Sintering-based methods, Ceramic - Other applications of ceramics

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Non-crystalline ceramics, being glasses, tend to be formed from melts. The glass is shaped when either fully molten, by casting, or when in a state of toffee-like viscosity, by methods such as blowing to a mould. If later heat-treatments cause this class to become partly crystalline, the resulting material is known as a glass-ceramic. Crystalline ceramic materials are not amenable to a great range of processing. Methods for dealing with them tend to fall into one of two categories - either make the ceramic in the desired shape, by rea ...

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Ceramics, Ceramics - Classifications of technical ceramics, Ceramics - Examples of ceramic materials, Ceramics - Properties of ceramics, Ceramics - Mechanical properties, Ceramics - Electrical properties, Ceramics - Processing of ceramic materials, Ceramics - In situ manufacturing, Ceramics - Sintering-based methods, Ceramics - Other applications of ceramics

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A cooking pot (saucepan in British English) is a large bowl that is heated in order to cook the food inside it. They can be made from either ceramics or metals, and have been used nearly everywhere in the world throughout human history. Cooking pot - Ceramic pots. The earliest cooking pots were made of clay or ceramics. Ceramics, such as stoneware or glass, are stable materials that conduct poorly, so these pots must cook over relatively low heats and over long periods of time. They are gener ...

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Cooking pot - Ceramic pots

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Ceramic Discharge Metal Halide lamps are a relativly new source of light that is a variation of the mercury-vapor lamp. There is a ceramic tube inside the lamp that heats a Mercury-Argon mixture creating a blueish light that is close to daylight with a CRI (color rendering index) of 96. They are five times brighter than comparable tungsten incandescent light bulbs. Applications for these lamps include television and film making as well as digital photography and architectural lighting. Natural/prehistoric light sources: ...

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Asbestos-Ceramic (ca 3900-1800 BP) refers to types of pottery manufactured with asbestos and clay with adiabatic behaviour in Finland, Karelia and Northern-Scandinavia. A further vessel-type does not contain any asbestos, but it has insulating properties and is therefore sometimes included under asbestos-ceramic. The most probable origin of this style of ware is the shores of lake Saimaa in Finland which is the only place for richer easily accessible natural deposits of asbestos in its area of distribution. Finds from in ...

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Technical Ceramics can also be classified into three distinct material categories: Oxides: Alumina, zirconia Non-oxides: Carbides, borides, nitrides, silicides Composites: Particulate reinforced, combinations of oxides and non-oxides. Each one of these classes can develop unique material properties Ceramics - Examples of ceramic materials. Barium strontium calcium copper oxide, a high-temperature superconductor Barium titanate (often mixed with st ...

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Ceramics, Ceramics - Classifications of technical ceramics, Ceramics - Examples of ceramic materials, Ceramics - Properties of ceramics, Ceramics - Mechanical properties, Ceramics - Electrical properties, Ceramics - Processing of ceramic materials, Ceramics - In situ manufacturing, Ceramics - Sintering-based methods, Ceramics - Other applications of ceramics

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A brick is a ceramic block made of kiln-fired material, usually clay or ground shale. Clay bricks are formed in a mould (the soft mud method), or more frequently in commercial mass production by extruding clay through a die and then wire-cutting them to the proper size (the stiff mud process). Brick made from dampened clay must be formed in molds with a great deal of pressure, usually applied by a hydraulic press. These bricks are known as hydraulic-pressed bricks, and have a dense surface which makes them highly resistant to weatheri ...

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Brick - History Brick - Construction and types
Brick - Proportions
Brick - Use

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About 150 arrangements of prehistoric circular ditches are known to archaeologists spread over Germany, Austria and Slovakia and the Czech Republic. Their diameters range from ca. 20 to ca. 130 m, and they date to the 5th millennium BC. Tools, bones, and some artefacts were found in their context. The largest of these arrangements to date was found in Leipzig in the 1990s. Another large find was at the nearby village of Aythra, outside of Leipzig. From finds in the context of these ditches, and associated settlements of longhouses, it ...

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Bone ash is the white, powdery ash left from the burning of bones. It is primarily composed of calcium phosphate. In contemporary times, bone ash is produced synthetically. It is commonly used in fertilizers, polishing compounds, and in making ceramics (such as bone china). Other related archivesash, bone china, calcium phosphate, ceramics, fertilizers, synthetically

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The traditional culture of Korea is shared by South Korea and North Korea, but there are regional differences. The political differences between the north and the south of the peninsula also mean that there is a different focus on specific aspects of Korean culture. Culture of Korea - Traditional Korean arts. Culture of Korea - Traditional music. The traditional music in Korea is based on the voice. It is thought that the voice is a distinctively Korean voice, reflecting the tem ...

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Culture of Korea - Traditional Korean arts
Culture of Korea - Traditional music Culture of Korea - Traditional dance Culture of Korea - Folk games Culture of Korea - Korean paintings Culture of Korea - Korean crafts Culture of Korea - Ceramics
Culture of Korea - Traditional Korean lifestyle
Culture of Korea - Traditional houses Culture of Korea - Gardens Culture of Korea - Traditional dress Culture of Korea - Essential recipes Culture of Korea - The art of tea Culture of Korea - Festivals of the lunar calendar Culture of Korea - Board and card games
Culture of Korea - World Heritage sites of Korea
Culture of Korea - Jongmyo Shrine Culture of Korea - Changdeokgung Culture of Korea - Bulguksa Culture of Korea - Tripitaka Koreana and Haeinsa Culture of Korea - Hwaseong Culture of Korea - Sites of Gochang Hwasun and Ganghwa Culture of Korea - Gyeongju Area Culture of Korea - Complex of Goguryeo Tombs

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Clay is a generic term for an aggregate of hydrous silicate particles less than 4 μm (micrometres) in diameter. Clay consists of a variety of phyllosilicate minerals rich in silicon and aluminium oxides and hydroxides which include variable amounts of structural water. Clays are generally formed by the chemical weathering of silicate-bearing rocks by carbonic acid, but some are formed by hydrothermal activity. Clays are distinguished from other small parti ...

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Clay - Historical and modern uses of clay

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A bladed weapon is a weapon with a blade. Bladed weapons are made out of a variety of metals including: bronze, iron, and steel. Bladed weapons can also be made of stone, such as flintstone. Construction techniques using ceramics have been devloped recently, however, metal is often added to the ceramic to allow the weapon to be detected by security devices. A bladed weapon can be used as an all purpose tool or for fighting. See also. List of swords

Ceramics - Mechanical properties. Ceramic materials are usually ionic or covalently-bonded materials, and can be crystalline or amorphous. A material held together by either type of bond will tend to fracture before any plastic deformation takes place, which results in poor toughness in these materials. Additionally, because these materials tend to be porous, the pores and other microscopic imperfections act as stress concentrators, decreasing the toughness further, and reducing the tensile strength. These combine to give catastrophic failures, as opposed to the ...

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Ceramics, Ceramics - Classifications of technical ceramics, Ceramics - Examples of ceramic materials, Ceramics - Properties of ceramics, Ceramics - Mechanical properties, Ceramics - Electrical properties, Ceramics - Processing of ceramic materials, Ceramics - In situ manufacturing, Ceramics - Sintering-based methods, Ceramics - Other applications of ceramics

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Ferrites are ferromagnetic ceramic materials, compounds of iron, boron and barium or strontium or molybdenum. Ferrites have a high magnetic permeability, which allows them to store stronger magnetic fields than iron, and are known as ceramic magnets. They are the most common ordinary household magnets. The magnetic field B is about 0.35 tesla and the magnetic field strength H is about 30 to ...

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Ferrite magnet - Uses

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The Beaker culture (also Bell-Beaker culture, Beaker people, or Beaker folk, German Glockenbecherkultur), ca. 2600 — 1900 BC, is the term for a widely but spottily scattered archaeological culture of prehistoric western Europe starting in the late Neolithic (stone age) running into the early bronze age. Beaker culture - Extent. Its remains have been found in what is now Portugal, Spain, France (excluding the central massif), Great Britain and Ireland, the Low Countries, and Ger ...

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Beaker culture - Extent Beaker culture - Pottery Beaker culture - Origin Beaker culture - Interpretation Beaker culture - Sources

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A bullet-resistant vest (body armour or body armor (U.S.)) - is an article of protective clothing that works as a form of armour to minimize injury from projectiles fired from handguns, shotguns and rifles . They are commonly worn by police forces, the military, and private security and civilians where legal. However, they have sometimes been used by criminals. The term "bulletproof" is a misnomer since these vests (depending on their armor level, see below) may provide little or no protection against rifle ammuni ...

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Bulletproof vest - History Bulletproof vest - Performance standards Bulletproof vest - The Future of Bulletproof vests Bulletproof vest - Legality

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