News tagged with graphite

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Pencil drawing of a sensor actually is a sensor

Using graphite pencils to draw on regular paper, researchers can make some very inexpensive piezoresistive (PZR) sensors. Due to the piezoresistive effect, a sensor's resistance changes under an applied strain, ...

Feb 28, 2014 feature
4.4 / 5 (18) 2

Friction almost vanishes in microscale graphite

(Phys.org) -- In the phenomenon of superlubricity, two solid surfaces can slide past each other with almost no friction. The effect occurs when the solid surfaces have crystalline structures and their lattices ...

Jun 04, 2012 feature
5 / 5 (9) 9 | with audio podcast

Producing graphene layers using crystallization

(PhysOrg.com) -- Ever since it's relatively recent discovery, graphene has generated a great deal of interest. Graphene is extracted from graphite in many cases, and consists of a sheet of carbon atoms bound together in a ...

Mar 02, 2010 feature
4.7 / 5 (13) 1 | with audio podcast

How Perfect Can Graphene Be?

(PhysOrg.com) -- Physicists have investigated the purest graphene to date, and have found that the material possesses unprecedented high electronic quality. The discovery has raised the bar for this relatively ...

Oct 13, 2009 feature
4.5 / 5 (31) 4

New graphene-type material created

(Phys.org) —Scientists at the University of Liverpool have created a new material, related to graphene, which has the potential to improve transistors used in electronic devices.

May 22, 2014
4.5 / 5 (31) 0