Nanomaterials

Chalcogenide phase-change memory materials for high-speed, low-power data storage

By Eileen De Guire / June 6, 2011

Ohio University graduate student, Chandrasiri Ihalawela discusses his work on telluride-base phase change memory materials with SVRNL’s Kevin Fox. Last week the University of California, San Diego announced that a…

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Transformed aerogels: From amorphous carbon to nanocrystalline diamond

By Eileen De Guire / June 1, 2011

Laser-heated diamond anvil cell allows very large hydrostatic pressure to be applied to amorphous carbon aerogels. Cavity dimensions are approximately 100–170 μm wide by 35 μm thick. Credit: LLNL. While…

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Nanoscale intergranular films shed light on grain boundary behavior

By Eileen De Guire / May 26, 2011

During one of their studies, grain boundary researchers began with gold films broken into particles (via annealing) dispersed across a sapphire substrate. Credit: Baram, et al; Technion. Materials scientists have long recognized that grain boundaries…

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Energy Frontier Research Centers to showcase work on ‘grand challenges’

By / May 24, 2011

Credit: DOE The next few days should be fun for materials scientists and engineers. Tomorrow (May 25) begins the start of a three-day meeting where participants in the DOE’s 46…

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TAMU group’s ultrathin polymer–clay coating creates flexible, transparent gas barrier

By / May 9, 2011

The clay–polymer layer-by-layer process (a) and an illustration of the quadlayer nano brick wall structure of PEI (blue), PAA (green), PEI and MMT clay (red). Credit: M.A. Priolo, et al;…

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Materials stories that may also be of interest

By / May 9, 2011

Schematic showing the architecture of the sensor developed at Princeton. Credit Stephen Y. Chou; Princeton. Check ’em out: Princeton engineers make breakthrough in ultrasensitive Raman-based sensor Princeton researchers have invented…

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NIST news on glass transition, double graphene layers, magnet shape effects, new manufacturing blog and favored PV technologies

By / April 28, 2011

NIST measurements show that interactions of the graphene layers with the insulating substrate material causes electrons (red, down arrow) and electron holes (blue, up arrow) to collect in “puddles”. The…

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Super-small erasable SketchSET transistor, ‘artificial atom’ could lead to super-big payoff

By Eileen De Guire / April 27, 2011

An atomic-scale depiction of the SketchSET shows three wires (green bars) converging on the central island (center green area), which can house up to two electrons. Electrons tunnel from one…

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Materials stories that may also be of interest

By / April 22, 2011

Check ’em out: Toyota Announces finalists in ‘Ideas For Good’ challenge ‘Solar group buy’ program launched in California Novel bulk metallic glass nanowires boost fuel cell efficiency NC State researchers…

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Advanced materials opportunity: ARPA-E offers new $130M round of high-risk, high-reward funding

By / April 20, 2011

One of the projects ARPA-E is seeking to fund are alternatives to five key at-risk rare earth elements. Credit: DOE, “Critical Materials Strategy.” The DOE announced today that it is…

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