graphite

Definitions

  • WordNet 3.6
    • n graphite used as a lubricant and as a moderator in nuclear reactors
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Webster's Revised Unabridged Dictionary
    • n Graphite (Min) Native carbon in hexagonal crystals, also foliated or granular massive, of black color and metallic luster, and so soft as to leave a trace on paper. It is used for pencils (improperly called lead pencils), for crucibles, and as a lubricator, etc. Often called plumbago or black lead.
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Century Dictionary and Cyclopedia
    • n graphite One of the forms under which carbon occurs in nature (see carbon), also known as plumbago and black-lead. It has an iron-gray color and metallic luster, and occurs in foliated masses and embedded scales. It is soft and unctuous to the touch, makes a black shining streak on paper, and is used chiefly in the manufacture of pencils, crucibles, and portable furnaces, for burnishing iron to protect it from rust, and for counteracting friction between the rubbing surfaces of wood or metal in machinery. It is a conductor of electricity, and in the form of a powder is used for coating the non-conducting surfaces of molds in making electrotypes. The most important regions supplying graphite are the Alibert mine in Siberia, which furnishes the best material for lead-pencils, and Ceylon, whence comes a large part of the coarser material used for stove-polish and for lubrication. There are also extensive mines of graphite near Lake Champlain.
    • n graphite Same as graffito. See the extract.
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Chambers's Twentieth Century Dictionary
    • Graphite a mineral, commonly called blacklead or plumbago (though containing no lead), largely used in making pencils
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Etymology

Webster's Revised Unabridged Dictionary
Gr. gra`fein to write: cf. F. graphite,. See Graphic
Chambers's Twentieth Century Dictionary
Gr. graphē, a writing—graphein, to write.

Usage

In literature:

The Madagascar graphite, in the shape and size of the flakes, is more like the American domestic graphite than the Ceylon product.
"The Economic Aspect of Geology" by C. K. Leith
The "lead" is all graphite, or plumbago.
"Makers of Many Things" by Eva March Tappan
In the oldest of the rocks there are beds of graphite, from which lead pencils are made.
"The Meaning of Evolution" by Samuel Christian Schmucker
He unrolled the tight package of cloth to find a small can of black graphite lubricant done up in a jacket and blouse.
"The Finding of Haldgren" by Charles Willard Diffin
Close to the filament is a graphite disk which serves as one of the electrodes.
"The Automobile Storage Battery" by O. A. Witte
Graphite is not porous, but this charcoal is very porous.
"The Story of a Tinder-box" by Charles Meymott Tidy
What you call the "lead" of the pencil is really graphite, a form of carbon.
"Common Science" by Carleton W. Washburne
These pencils were made of wood and strips of natural graphite.
"Books Before Typography" by Frederick W. Hamilton
The densest anthracite is often of a semi-metallic lustre, resembling somewhat that of graphite.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5" by Various
Lignite, copper, graphite and silver are also found.
"Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3" by Various
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In news:

With its graphite and aluminum construction and adjustable design, the TGR Sinister sure looks like a mean micro machine to us.
A lead pencil has graphite in it, but no lead.
The final result is a composite graphite base.
Aldila's RIP collection includes some of the most recognizable graphite shafts on the PGA Tour, including (from top): the RIP'd NV, the RIP BETA, the RIP ALPHA and the RIP PHENOM.
Katherine Patterson’s CatSnake, graphite on paper.
Appsecute, Garantia Data and Hosted Graphite add-on s are now available.
AppFog, the leading cloud-based platform-as-a-service (PaaS), today announced that Appsecute, Garantia Data and Hosted Graphite have joined its growing add-on program of third-party service providers.
This new buggy features lightweight drivetrain gears, graphite steering knuckle arms, CVD boots, and big bore threaded aluminum shocks.
It seems that every year we are bombarded with ads for the newest, lightest, fastest graphite rods ever made.
No longer did she need to polish her stove regularly with black graphite.
299 (MSRP) Diablo Octane (standard) Loft: 9.5 Shaft: Project X graphite S-flex.
9.5 Shaft: Project X graphite, S-flex.
From Golf Magazine (May 2011) Category: Fairway Woods We tested: 15°, 19° with Diablo Octane Fairway graphite shaft.
"Wall Pocket ," 2003-04 Cedar and graphite, 162 x 72 x 65 inches.
In her poems "Under the Graphite Sky" and "Strange How You Stay," Orcas Island poet Dorothy Trogdon gives us a uniquely Pacific Northwestern view of winter.
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In science:

Keywords: Atom-solid interactions, scattering, diffraction; surface phonons; graphite; xenon monolayers.
Diffraction of He atoms from Xe monolayer adsorbed on the graphite (0001) revisited: The importance of multiple scattering processes
The well depth D of the He-Xe/graphite potential is known with high precision from the studies reported in Refs. 17 and 18 and amounts to D = 7.4 meV, and hence the He atoms scattered into the (50) and (60) channels (c.f.
Diffraction of He atoms from Xe monolayer adsorbed on the graphite (0001) revisited: The importance of multiple scattering processes
In particular it is seen that the small radius of the molecule substantially increases the electron-phonon coupling with respect to the case of the unrolled graphite layer10.
Superconductivity from doping boron icosahedra
The origin of this 2175 ˚A feature is generally interpreted as due to the graphite grains component of the interstellar dust (Mathis 1990).
Absorption in Gamma Ray Burst afterglows
For the SMC extinction curve, the absence of the 2175 ˚A hump was explained by a different relative abundances of graphite and silicate grains (Pei 1992).
Absorption in Gamma Ray Burst afterglows
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