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high-temperature lubricant

См. также в других словарях:

  • Lubricant — A lubricant is a substance introduced to reduce friction between moving surfaces. It may also have the function of transporting foreign particles and of distributing heat. The property of reducing friction is known as lubricity. A good lubricant… …   Wikipedia

  • Dry lubricant — Dry lubricants or solid lubricants are materials which despite being in the solid phase, are able to reduce friction between two surfaces sliding against each other without the need for a liquid media. Such lubricants, including materials such as …   Wikipedia

  • Grease (lubricant) — Although the word grease originally described the rendered fat of animals, the term is now applied more broadly to mean a lubricant of higher initial viscosity than oil, consisting originally of a calcium, sodium or lithium soap jelly emulsified… …   Wikipedia

  • Ultra high vacuum — (UHV) is the vacuum regime characterised by pressures lower than about 10−7 pascal or 100 nanopascals ( 10−9 torr). UHV requires the use of special materials in creating the vacuum system, extreme cleanliness to maintain the vacuum system, and… …   Wikipedia

  • Graphite — For other uses, see Graphite (disambiguation). Graphite Graphite specimen General Category Native element mineral …   Wikipedia

  • chemical bonding — ▪ chemistry Introduction       any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …   Universalium

  • Tungsten — (pronEng|ˈtʌŋstən), also known as wolfram (IPA|/ˈwʊlfrəm/), is a chemical element that has the symbol W and atomic number 74.A steel gray metal, tungsten is found in several ores, including wolframite and scheelite. It is remarkable for its… …   Wikipedia

  • Lithium — (pronEng|ˈlɪθiəm) is a chemical element with the symbol Li and atomic number 3. It is a soft alkali metal with a silver white color. Under standard conditions, it is the lightest metal and the least dense solid element. Like all alkali metals,… …   Wikipedia

  • Nitride — In chemistry, a nitride is a compound of nitrogen where nitrogen has a formal oxidation state of −3. Nitrides are a large class of compounds with a wide range of properties and applications.[1] The nitride ion, N3–, is never encountered in… …   Wikipedia

  • Motor oil — For the TV documentary focused on the Edmonton Oilers of the National Hockey League, see Oil Change (TV Series). Motor oil sample Motor oil or engine oil is an oil used for lubrication of various internal combustion engines. The main function is… …   Wikipedia

  • Components of jet engines — Diagram of a typical gas turbine jet engine. Air is compressed by the fan blades as it enters the engine, and it is mixed and burned with fuel in the combustion section. The hot exhaust gases provide forward thrust and turn the turbines which… …   Wikipedia

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