Definition, Meaning, Synonyms & Anagrams | English word GRAPHITE

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Definitions of GRAPHITE

1. An allotrope of carbon, consisting of planes of carbon atoms arranged in hexagonal arrays with the planes stacked loosely, that is used as a dry lubricant, in "lead" pencils, and as a moderator in some nuclear reactors.
2. Short for graphite-reinforced plastic, a composite plastic made with graphite fibers noted for light weight strength and stiffness.
3. A grey colour, resembling graphite or the marks made with a graphite pencil.
4. (transitive) To apply graphite to.

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Examples of Using GRAPHITE in a Sentence

• For example, the allotropes of carbon include diamond (the carbon atoms are bonded together to form a cubic lattice of tetrahedra), graphite (the carbon atoms are bonded together in sheets of a hexagonal lattice), graphene (single sheets of graphite), and fullerenes (the carbon atoms are bonded together in spherical, tubular, or ellipsoidal formations).
• Graphite occurs naturally in ores that can be classified into one of two categories either amorphous (microcrystalline) or crystalline (flake or lump/chip) which is determined by the ore morphology, crystallinity, and grain size.
• The known inorganic chemistry of the allotropes of carbon (diamond, graphite, and the fullerenes) blossomed with the discovery of buckminsterfullerene in 1985, as additional fullerenes and their various derivatives were discovered.
• It is found in nature in meteorite debris; when meteors containing graphite strike the Earth, the immense heat and stress of the impact transforms the graphite into diamond, but retains graphite's hexagonal crystal lattice.
• Graphite pencils (traditionally known as "lead pencils") produce grey or black marks that are easily erased, but otherwise resistant to moisture, most solvents, ultraviolet radiation and natural aging.
• Rosalind Elsie Franklin (25 July 192016 April 1958) was a British chemist and X-ray crystallographer whose work was central to the understanding of the molecular structures of DNA (deoxyribonucleic acid), RNA (ribonucleic acid), viruses, coal, and graphite.
• He bought houses then idle at the local graphite mines in Clay County and hired neighbors in their spare time and built the hatchery and chicken houses and an extra tenant house on the farm, southeast of Ashland, Alabama, whose population of close to one thousand had grown considerably from two hundred in 1881.
• Natural resources in the Flowery Branch area include: gray marble, marble, clay, granite, graphite, limestone, iron ore, manganese, pegmatite, mica, beryl, quartzite, zircon, lead, copper, silver, and gold as known by the local Gold Hill Mine and regional popularity of The Hall County Gold Belt prospected during the Georgia Gold Rush.
• Although the plutonium production plants at Hanford would eventually use graphite as a "moderator" to slow and control the fission process, Manhattan Project officials also pursued heavy water as an alternative option.
• The Nipmuc had a written language, tools, a graphite mine at Sturbridge, and well-developed agriculture, including maize (a variant of corn), beans and squash.
• Over the next 100 years, the Mill was used at different times to process grains, plaster, talc and graphite.
• The iconic Dixon Ticonderoga pencil was named after the graphite that was mined and processed in Ticonderoga.
• The alloying elements determine the form in which its carbon appears: white cast iron has its carbon combined into an iron carbide named cementite, which is very hard, but brittle, as it allows cracks to pass straight through; grey cast iron has graphite flakes which deflect a passing crack and initiate countless new cracks as the material breaks, and ductile cast iron has spherical graphite "nodules" which stop the crack from further progressing.
• These are the second generation of British gas-cooled reactors, using graphite as the neutron moderator and carbon dioxide as coolant.
• This method involves ball milling of high-purity graphite powders down to an amorphous nanoscale size under an argon atmosphere.
• The coating was made from a mixture of glue and gesso, and modern-day experiments have shown that ink, graphite and silverpoint writing can be easily erased from the treated pages with the application of a wet sponge or fingertip.
• Graphite and heavy water are the most effective moderators, because they slow the neutrons through collisions without absorbing them.
• The speakers use a thin flat diaphragm usually consisting of a plastic sheet coated with a conductive material such as graphite sandwiched between two electrically conductive grids, with a small air gap between the diaphragm and grids.
• Brass rubbings are created by laying a sheet of paper on top of a brass (then called "latten" - a zinc-copper alloy produced via the obsolete calamine brass process) and rubbing the paper with graphite, wax, or chalk, a process similar to rubbing a pencil over a piece of paper placed on top of a coin.
• The high temperature required for this reaction is not practically achievable by traditional combustion, so the reaction is performed in an electric arc furnace with graphite electrodes.
• Two years later he published his doctoral dissertation, entitled "Om grafitens och chondroditens kristallformer" ("On the crystal forms of graphite and chondrodite").
• The rules permit the cars to be augmented with tungsten carbide weights up to the limit, and graphite axle lubricant.
• Another way to explain this would be that even though the conversion of diamond into graphite is thermodynamically feasible and spontaneous even at room temperature, the high activation energy of this reaction renders it unspontaneous.
• Steering during the launch phase was accomplished by four graphite rudders placed in the exhaust stream of the combustion chamber, as in the V-2, but once high airspeeds had been attained this was accomplished by four air rudders mounted on the rocket tail.
• Like most railroads, the SP painted most of its steam locomotives black during the 20th century, but after 1945 SP painted the front of the locomotive's smokebox silver (almost white in appearance), with graphite colored sides, for visibility.

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