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27 matches found for "polycrystalline material"
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Smart memory foam made smarter
Researchers from Northwestern University and Boise State University have figured out how to produce a less expensive shape-shifting "memory" foam, which could lead to more widespread applica...
Materials Sciences |
Read moreFaster computers, electronic devices possible after scientists create large-area graphene on copper
Their work titled "Large-Area Synthesis of High-Quality and Uniform Graphene Films on Copper Foils" was published today online in Science Express in advance of its print publication in the j...
Power and Electrical Engineering | Read moreMathematics and Climate Change
In 1994, University of Utah mathematician Ken Golden went to the Eastern Weddell Sea for the Antarctic Zone Flux Experiment. The sea's surface is normally covered with sea ice, the comple...
Earth Sciences | Read moreNew Generator Produces AC Current by Stretching Wires
The new “flexible charge pump” generator is the fourth generation of devices designed to produce electrical current by using the piezoelectric properties of zinc oxide structures to harvest mechanical...
Power and Electrical Engineering | Read moreJust Scratching the Surface: New Technique Maps Nanomaterials as They Grow
“Since we discovered this technique, we have been trying to get the word out to the nanoscience and nanotechnology research community,” said professor and head of physics, applied physics, and astrono...
Materials Sciences | Read moreNew Research Shows Why Metal Alloys Degrade
Metal alloys are solids made from at least two different metallic elements. The elements are often mixed together as liquid, and when they "freeze," into solids, tiny grains of crystal form ...
Materials Sciences | Read moreMystery of earth’s innermost core solved
The findings were attained by a team of Swedish and Russian researchers, who used advanced simulations on Swedish supercomputers. This new knowledge explains some of the seismic data-signals from ear...
Earth Sciences | Read morePlatinum nanocrystals boost catalytic activity for fuel oxidation, hydrogen production
The new platinum nanocrystals, whose "tetrahexahedral" structure had not previously been reported in the metal, could improve the efficiency of chemical processes such as those used to catal...
Materials Sciences | Read moreSolar Panel Payback Time
Solar and wind power, and other renewable sources, such as wave and tidal power, represent an energy source that could underpin a sustainable energy policy by minimizing our reliance on fossil fuels a...
Studies and Analyses | Read moreNew nanoscale engineering breakthrough points to hydrogen-powered vehicles
The results of their findings identify a clear trend in the behavior of extended and nanoscale surfaces of platinum-bimetallic alloy. Additionally, the techniques and concepts derived from the researc...
Automotive Engineering | Read moreButterfly wing scales provide template for complex photonic structures
Using a low-temperature atomic layer deposition (ALD) process, materials scientists at the Georgia Institute of Technology produced aluminum oxide (alumina) replicas of wing scales from a Morpho pelei...
Materials Sciences | Read more'World's smallest controlled heat source' studies explosives at the nanoscale
Using the "world's smallest controlled heat source" – a tiny atomic-force microscope (AFM) cantilever – scientists from the Georgia Institute of Technology and Texas Tech University hav...
Physics and Astronomy | Read moreRooftop PV data for better energy prediction models
At its new Roof Photovoltaic Test Facility, NIST is monitoring the electrical performance and thermal performance of seven different residential systems designed for sloped roofs and two commercial bu...
Power and Electrical Engineering | Read moreNanohelix structure provides new building block for nanoscale piezoelectric devices
Based on superlattice nanobelts A previously-unknown zinc oxide nanostructure that resembles the helical configuration of DNA could provide engineers with a new building ...
Materials Sciences | Read moreNovel material may demonstrate long-sought ’liquid’ magnetic state
A novel material that may demonstrate a highly unusual "liquid" magnetic state at extremely low temperatures has been discovered by a team of Japanese and U.S. researchers, according to tom...
Materials Sciences | Read more
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