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Scientists do glass a solid

New theory on how it transitions from a liquid

27-11-2014

How does glass transition from a liquid to its familiar solid state? How does this common material transport heat and sound? And what microscopic changes occur when a glass gains rigidity as it cools? A team of researchers at NYU's Center for Soft Matter Research offers a theoretical explanation ...

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Discovery sheds light on nuclear reactor fuel behavior during a severe event

New discovery about melted UO2 structure will enhance understanding of reactor safety during meltdown scenario

24-11-2014

A new discovery about the atomic structure of uranium dioxide will help scientists select the best computational model to simulate severe nuclear reactor accidents. Using the Advanced Photon Source (APS), a Department of Energy (DOE) Office of Science User Facility, researchers from DOE's Argonne ...

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NRL scientists discover novel metamaterial properties within hexagonal boron nitride

24-11-2014

U.S. Naval Research Laboratory (NRL) scientists, in collaboration with researchers from the University of Manchester, U.K.; Imperial College, London; University of California San Diego; and the National Institute of Material Science (NIMS), Japan, have demonstrated that confined surface phonon ...

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Scientists get to the heart of fool's gold as a solar material

20-11-2014

As the installation of photovoltaic solar cells continues to accelerate, scientists are looking for inexpensive materials beyond the traditional silicon that can efficiently convert sunlight into electricity. Theoretically, iron pyrite - a cheap compound that makes a common mineral known as ...

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'Topological insulators' promising for spintronics, quantum computers

18-11-2014

Researches have uncovered "smoking-gun" evidence to confirm the workings of an emerging class of materials that could make possible "spintronic" devices and practical quantum computers far more powerful than today's technologies. The materials are called "topological insulators." Unlike ordinary ...

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Major class of fracking chemicals no more toxic than common household substances

18-11-2014

The "surfactant" chemicals found in samples of fracking fluid collected in five states were no more toxic than substances commonly found in homes, according to a first-of-its-kind analysis by researchers at the University of Colorado Boulder. Fracking fluid is largely comprised of water and sand, ...

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UH chemists develop porous molecules that bind greenhouse gases

17-11-2014

A team of University of Houston (UH) chemistry researchers have developed a molecule that assembles spontaneously into a lightweight structure with microscopic pores capable of binding large quantities of several potent greenhouse gases. "Greenhouse gases, such a carbon dioxide, have received ...

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Bending - but not breaking - in search of new materials

Drexel engineers improve strength and flexibility of atom-thick films

13-11-2014

Making a paper airplane in school used to mean trouble. Today it signals a promising discovery in materials science research that could help next-generation technology - like wearable energy storage devices - get off the ground. Researchers at Drexel University and Dalian University of Technology ...

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A billion holes can make a battery

12-11-2014

Researchers at the University of Maryland have invented a single tiny structure that includes all the components of a battery that they say could bring about the ultimate miniaturization of energy storage components. The structure is called a nanopore: a tiny hole in a ceramic sheet that holds ...

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Good vibrations give electrons excitations that rock an insulator to go metallic

12-11-2014

For more than 50 years, scientists have debated what turns particular oxide insulators, in which electrons barely move, into metals, in which electrons flow freely. Some scientists sided with Nobel Prize-winning physicist Nevill Mott in thinking direct interactions between electrons were the key. ...

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