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Page "Armour" ¶ 23
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ceramic and metal
The culture is characterised by a high degree of sophistication in the production of metal and ceramic artefacts, as well as of uniformity over a vast area.
* Advanced composite ceramic and metal matrices have been designed for most modern armoured fighting vehicles because they offer superior penetrating resistance against shaped charges such as high explosive antitank ( HEAT ) rounds and kinetic energy penetrators.
The expected increase of fuel efficiency of the engine ( caused by the higher temperature, as shown by Carnot's theorem ) could not be verified experimentally ; it was found that the heat transfer on the hot ceramic cylinder walls is higher than the transfer to a cooler metal wall.
Work is being done to make strong, fully dense nano crystalline hydroxyapatite ceramic materials for orthopedic weight bearing devices, replacing foreign metal and plastic orthopedic materials with a synthetic, but naturally occurring, bone mineral.
Research to address this “ carbon coking ” issue at the University of Pennsylvania has shown that the use of copper-based cermet ( heat-resistant materials made of ceramic and metal ) can reduce coking and the loss of performance.
Each unit is constructed of a ceramic or glass disc with a metal cap and pin cemented to opposite sides.
However, it is disadvantaged by it being necessary for the base metal ( or ceramic ) having to undergo some wear first to generate sufficient oxide debris.
The tube is made entirely of metal and ceramic.
Glass Moonshine slides are made of glass, but have a porous ceramic interior that helps prevent slipping ; other slides have been designed to reduce the weight of brass or porcelain slides by using a lightweight interior, while still others are made of glass on the front and of metal on the back to allow easy switching.
Sometimes manufacturers or retailers refer to tungsten carbide as a metal, but it is a ceramic.
Most tubes have glass envelopes, though ceramic and metal envelopes ( atop insulating bases ) have been used.
The mirrors can be made of ceramic or metal foil.
The diffusion of both movable-type systems was, however, limited: They were expensive, and required an enormous amount of labour involved in manipulating the thousands of ceramic tablets, or in the case of Korea, metal tablets required for scripts based on the Chinese writing system, which have thousands of characters.
These components usually have a base of ceramic, metal, glass or plastic, which makes an electrical connection in the socket of a light fixture.
Left item: A Northern Song qingbai-ware vase with a transparent blue-toned ceramic glaze, from Jingdezhen, 11th century ; Center item: A Northern or Southern Song qingbai-ware bowl with incised Nelumbo nucifera | lotus decorations, a metal rim, and a transparent blue-toned glaze, from Jingdezhen, 12th or 13th century ; Right item: A Southern Song scale model | miniature model of a granary with removable top lid and doorway, qingbai porcelain with transparent blue-toned glaze, Jingdezhen, 13th century.
* 1992-94 a team at Nela Parc, Cleveland, GE, with Jack Strok creates ceramic metal halide lamps ( CMH ).
Other materials used include resistance wire, carbon particles in plastic, and a ceramic / metal mixture called cermet.
High speed photography showed that the ceramic material shatters as the HEAT round penetrates, the highly energetic fragments destroying the geometry of the metal jet generated by the hollow shaped charge, greatly diminishing the penetration.
Focus is 32. 768 kHz SMD and through hole crystals in miniature metal and ceramic package.
The Centre Refreshment Room 1865 – 77 was designed in a Renaissance style by James Gamble, the walls and even the Ionic columns are covered in decorative and moulded ceramic tile, the ceiling consists of elaborate designs on enamelled metal sheets and matching stained glass windows, the marble fireplace was designed and sculpted by Alfred Stevens and was removed from Dorchester House prior to that building's demolition in 1929.
The other material may be a different metal or another material, such as a ceramic or organic compound.
A vacuum is generated by the vertical travel of a metal or ceramic piston within an airtight sleeve.
This contains a ceramic mass of zinc oxide grains, in a matrix of other metal oxides ( such as small amounts of bismuth, cobalt, manganese ) sandwiched between two metal plates ( the electrodes ).

ceramic and plates
Chobham sandwiches a layer of ceramic between two plates of steel armour, which was shown to dramatically increase the resistance to HEAT rounds, even in comparison to other composite armour designs.
Metal or ceramic plates can be used with a soft vest, providing additional protection from rifle rounds, and metallic components or tightly woven fiber layers can give soft armor resistance to stab and slash attacks from knives and similar close-quarter weapons.
Textile vests may be augmented with metal ( steel or titanium ), ceramic or polyethylene plates that provide extra protection to vital areas.
Developed by Natick Laboratories and introduced in 1967, T65-2 plate carriers were the first vests designed to hold hard ceramic plates, making them capable of stopping 7 mm rifle rounds.
Hard ceramic plates such as the Small Arms Protective Insert as used with Interceptor Body Armor, are worn to protect the vital organs from higher level threats.
Boron carbide composites are today favoured for ceramic plates protecting against smaller projectiles, such as used in body armour and armoured helicopters ; this was in fact in the early sixties the first general application of ceramic armour.
The first ceramic plates found application in the aerospace sector: in 1965, the helicopter UH-1 Huey was modified with HFC ( Hard-Faced-Composite ) around the seats of pilot and copilot, protecting them against small arms fire.
In air-insulated and miniature breakers an arc chute structure consisting ( often ) of metal plates or ceramic ridges cools the arc, and magnetic blowout coils deflect the arc into the arc chute.
The earliest plates were made out of porcelain baked onto iron or ceramic with no backing, which made them fragile and impractical.
Caldas da Rainha's pottery falls into two main categories: utilitarian housewares, such as plates, bowls, platters, mugs, and tureens ; and purely decorative items, such as caricature figurines and ceramic phalluses of various sizes.
Semi-active baffle plates and ceramic layers with high tensile proprieties are employed in T-90 base Armour.
Eventually ceramic plates made from aluminium oxide and silicon carbide were introduced as well.
Second, kitchen sinks were usually made of hard ceramic ; any contact between the sink and plates was likely to cause chips, but a tub could be made of more forgiving material.
The items included many bowls, plates, vases, bones of animals, ceramic figurines of a jaguar head and monkey wearing a headdress, and musical instruments.
Naturally, Jinx uses this to his advantage, and begins tossing wine glasses, ceramic plates, teapots, and any and everything fragile, so that Jasper will be thrown outside.
Some advances in DMFC have been: bringing down the fuel crossover, miniaturizing the cell for consumer and military products, ceramic plates, carbon nanotubes, porous silicon layers and oxidation reduction.
In the 1980s, Schnabel received international media attention for his " plate paintings "— large-scale paintings set on broken ceramic plates.
His now famous " plate paintings "— large-scale paintings set on broken ceramic plates — received a boisterous and critical reception from the art world.
According to the manga, the jacket is actually a combination of Moose Leather, chain-mail and ceramic plates.
Informally, flak jacket may refer to a ballistic vest, particularly Type III and above, which is reinforced with either steel, titanium, ceramic, or polyethylene plates.
The ozone generators which are subject to this ban use ceramic Mica plates that produce 300 – 400 mg / h of ozone and are intended to be used indoors in occupied rooms.
Soldiers use metal or ceramic plates in their battledress, providing additional protection from rifle rounds.

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