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Latest National Center for Electron Microscopy Stories

ca06cca5dacd5fb3895765a4914180db
2011-08-08 14:27:16

Scientists at Berkeley Lab find nanoparticle size is readily controlled to make stronger aluminum alloys Long before they knew they were doing it "“ as long ago as the Wright Brother's first airplane engine "“ metallurgists were incorporating nanoparticles in aluminum to make a strong, hard, heat-resistant alloy. The process is called solid-state precipitation, in which, after the melt has been quickly cooled, atoms of alloying metals migrate through a solid matrix and gather...

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2009-04-01 09:09:03

Science fiction fans still have another two months of waiting for the new Star Trek movie, but fans of actual science can feast their eyes now on the first movie ever of carbon atoms moving along the edge of a graphene crystal. Given that graphene "“ single-layered sheets of carbon atoms arranged like chicken wire "“ may hold the key to the future of the electronics industry, the audience for this new science movie might also reach blockbuster proportions. Researchers with the...

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2008-10-20 14:00:00

Because they are riddled with defects, bulk crystalline materials never achieve their ideal strength; nanocrystals, on the other hand, are so small there's no room for defects. ("Nano" is short for nanometer, a billionth of a meter.) Yet while nanocrystalline materials may approach ideal strength in their resistance to stress, most nanostructures have shown only a limited ability to withstand large internal strains before they fail. Overcoming this limitation could lead to great advances in...


Word of the Day
mallemaroking
  • Nautical, the visiting and carousing of sailors in the Greenland ships.
This word is apparently from a confusion of two similar Dutch words: 'mallemerok,' a foolish woman, and 'mallemok,' a name for some persons among the crew of a whaling vessel.