As long ago as the Wright Brothers’ first airplane engine, metallurgists were using nanoparticles to make strong aluminum alloys – although they didn’t realize it, because scientific understanding is only decades old. Researchers at Berkeley Lab’s National Center for Electron Microscopy have now solved the mystery of one of the most promising alloys ever for strength, hardness, lightness, and resistance to corrosion and heat, one that includes core-shell nanoparticles all nearly the same size.
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