News tagged with conductivity

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New materials for future green tech devices

From your hot car to your warm laptop, every machine and device in your life wastes a lot of energy through the loss of heat. But thermoelectric devices, which convert heat to electricity and vice versa, ...

Jul 15, 2014
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Super-stretchable yarn is made of graphene

(Phys.org) —A simple, scalable method of making strong, stretchable graphene oxide fibers that are easily scrolled into yarns and have strengths approaching that of Kevlar is possible, according to Penn ...

Jun 23, 2014
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Skin with high rust protection factor

In industrialized countries, corrosion guzzles up to 4 percent of economic performance annually. Substances that protect metals effectively from its ravages are often damaging to the environment or have other ...

Jun 04, 2014
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Nanoscale heat flow predictions

Physicists are now designing novel materials with physical properties tailored to meet specific energy consumption needs. Before these so-called materials-by-design can be applied, it is essential to understand their characteristics, ...

May 07, 2014
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New material for flat semiconductors

Researchers around the world have been working to harness the unusual properties of graphene, a two-dimensional sheet of carbon atoms. But graphene lacks one important characteristic that would make it even ...

Apr 30, 2014
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Solving a mystery of thermoelectrics

Materials that can be used for thermoelectric devices—those that turn a temperature difference into an electric voltage—have been known for decades. But until now there has been no good explanation for ...

Apr 29, 2014
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