News tagged with crystallinity

How affordable is alternative energy?

Alternative energy sources that are cost-competitive with fossil fuels may be closer than most people realize. Recent renewable energy research has shown that solar, hydropower, wind and other alternative sources are closing ...

Aug 01, 2012
4.7 / 5 (3) 16

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

An unlikely route to ferroelectricity

(Phys.org) -- Ferroelectricity, which was first observed in the 1940s, is an interesting phenomenon involving the spontaneous (non-induced) formation of charge polarization (separation of charge) in certain ...

May 18, 2012
4.3 / 5 (4) 7 | with audio podcast

Group uses controlled cracking for nanofabrication

(Phys.org) -- When creating nanomaterials, cracking is generally considered a problem; it usually means something has gone wrong and the result, as with other material making processes such as glass or ceramics, ...

May 10, 2012 report
5 / 5 (2) 0 | with audio podcast

Creating nanostructures from the bottom up

Microscopic particles are being coaxed by Duke University engineers to assemble themselves into larger crystalline structures by the use of varying concentrations of microscopic particles and magnetic fields.

Apr 24, 2012
5 / 5 (2) 0 | with audio podcast