News tagged with graphite
Scientists shed light on magnetic mystery of graphite
The physical property of magnetism has historically been associated with metals such as iron, nickel and cobalt; however, graphite – an organic mineral made up of stacks of individual carbon sheets – has baffled ...
Jan 26, 2012 |
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Graphene enhances many materials, but leaves them wettable
Graphene is the thinnest material known to science. The nanomaterial is so thin, in fact, water often doesn't even know it's there.
Nanotechnology / Nanomaterials
Jan 23, 2012 |
4.8 / 5 (12) |
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Flaky graphene makes reliable chemical sensors
Scientists from the University of Illinois at Urbana-Champaign and the company Dioxide Materials have demonstrated that randomly stacked graphene flakes can make an effective chemical sensor.
Nanotechnology / Nanomaterials
Jan 17, 2012 |
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Lubricant in metal-on-metal hip implants found to be graphite, not proteins
A team of engineers and physicians have made a surprising discovery that offers a target for designing new materials for hip implants that are less susceptible to the joint's normal wear and tear.
Dec 22, 2011 |
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Graphene ink created for ink-jet printing of electronic components
(PhysOrg.com) -- A group of UK scientists has created a graphene ink that can be used to ink-jet print electronic devices such as thin film transistors.
Nanotechnology / Nanomaterials
Nov 25, 2011 |
4.8 / 5 (14) |
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Camera lets people shoot first, focus later
Startup Lytro unveiled a camera that lets people adjust the focus on photos after they take them.
Electronics / Consumer & Gadgets
Oct 20, 2011 |
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New form of superhard carbon observed
An amorphous diamond – one that lacks the crystalline structure of diamond, but is every bit as hard – has been created by a Stanford-led team of researchers.
Oct 11, 2011 |
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How diamonds emerge from graphite
Scientists have used a new method to precisely simulate the phase transition from graphite to diamond for the first time. Instead of happening concerted, all at once, the conversion evidently takes place in ...
Sep 21, 2011 |
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A simple slice of energy storage
Turning graphite oxide (GO) into full-fledged supercapacitors turns out to be simple. But until a laboratory at Rice University figured out how, it was anything but obvious.
Nanotechnology / Nanomaterials
Aug 01, 2011 |
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Graphite + water = the future of energy storage
A combination of two ordinary materials – graphite and water – could produce energy storage systems that perform on par with lithium ion batteries, but recharge in a matter of seconds and have an ...
Nanotechnology / Nanomaterials
Jul 15, 2011 |
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Korean researchers use graphene to create transparent loudspeakers
(PhysOrg.com) -- In yet another novel use for graphene, researchers from Seoul University have devised a method of creating transparent loudspeakers by printing them onto a special kind of plastic, using an ...
Nanotechnology / Nanomaterials
Jul 12, 2011 |
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Team calculates the electronic transport properties of graphene stacks
Anticipating forthcoming experiments, a CNST team has shown that few layer graphene stacks have favorable transport properties that could enable engineering of novel electronic devices.
Nanotechnology / Nanomaterials
Jun 23, 2011 |
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Seeing an atomic thickness
Scientists from NPL, in collaboration with Linkoping University, Sweden, have shown that regions of graphene of different thickness can be easily identified in ambient conditions using Electrostatic Force ...
May 19, 2011 |
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Single molecule electronics and 'chemical soldering'
(PhysOrg.com) -- Single molecule electronics is a division of nanotechnology utilizing single molecules as electronic components and its study has the ultimate goal of reducing the size of common electrical ...
Nanotechnology / Nanomaterials
May 13, 2011 |
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A breakthrough on paper that's stronger than steel
(PhysOrg.com) -- University of Technology, Sydney scientists have reported remarkable results in developing a composite material based on graphite that is a thin as paper and ten times stronger than steel.
Nanotechnology / Nanomaterials
Apr 20, 2011 |
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Graphite
The mineral graphite /ˈɡræfaɪt/ is one of the allotropes of carbon. It was named by Abraham Gottlob Werner in 1789 from the Ancient Greek γράφω (graphō), "to draw/write", for its use in pencils, where it is commonly called lead (not to be confused with the metallic element lead). Unlike diamond (another carbon allotrope), graphite is an electrical conductor, a semimetal. It is, consequently, useful in such applications as arc lamp electrodes. Graphite is the most stable form of carbon under standard conditions. Therefore, it is used in thermochemistry as the standard state for defining the heat of formation of carbon compounds. Graphite may be considered the highest grade of coal, just above anthracite and alternatively called meta-anthracite, although it is not normally used as fuel because it is difficult to ignite.
There are three principal types of natural graphite, each occurring in different types of ore deposit:
Highly ordered pyrolytic graphite or highly oriented pyrolytic graphite (HOPG) refers to graphite with an angular spread between the graphite sheets of less than 1°. This highest-quality synthetic form is used in scientific research. The name "graphite fiber" is also sometimes used to refer to carbon fiber or carbon fiber-reinforced polymer.
For more information about Graphite, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
