(Phys.org) —A key to understanding Earth's evolution is to look deep into the lower mantle—a region some 400 to 1,800 miles (660 to 2,900 kilometers) below the surface, just above the core. Data have suggested that deep, ...
Earth Sciences
Nov 13, 2014
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Heat-assisted magnetic recording (HAMR) is a new process that realizes the three goals of magnetic recording—readability, writeability and stability. A*STAR researchers have now succeeded in improving its writeability by ...
General Physics
Oct 22, 2014
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(Phys.org) —Graphene, a one-atom-thick form of the carbon material graphite, has been hailed as a wonder material—strong, light, nearly transparent, and an excellent conductor of electricity and heat. But a number of ...
Nanomaterials
May 6, 2014
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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 why just a few ...
Materials Science
Apr 29, 2014
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Graphene, a one-atom-thick form of the carbon material graphite, has been hailed as a wonder material—strong, light, nearly transparent and an excellent conductor of electricity and heat—and it very well may be. But a ...
Nanophysics
Apr 24, 2014
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(Phys.org) —A mixture of diamond nanoparticles and mineral oil easily outperforms other types of fluid created for heat-transfer applications, according to new research by Rice University.
Nanomaterials
Mar 28, 2014
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When engineers design devices, they must often join together two materials that expand and contract at different rates as temperatures change. Such thermal differences can cause problems if, for instance, a semiconductor ...
Nanomaterials
Dec 2, 2013
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Gallium nitride (GaN) is an important material for the semiconductor industry. It features a wide band gap and high thermal conductivity at room temperature, which make it a good material for optoelectronic devices and high-performance ...
Materials Science
Nov 7, 2013
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A new study has found that "waviness" in forests of vertically-aligned carbon nanotubes dramatically reduces their stiffness, answering a long-standing question surrounding the tiny structures.
Nanomaterials
Oct 1, 2013
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Thermoelectric generators can make better use of the excess heat generated by machines by converting temperature differences directly back into electricity. Now, Masaki Takata from the RIKEN SPring-8 Center, Harima, working ...
Condensed Matter
Oct 12, 2012
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