Scientists stretch metal to make it stronger
1:25
EngadgetJon Fingas
Scientists stretch metal to make it stronger
You'd think that stretching metal would make it weaker, but just the opposite is true... on a very small scale. Researchers have developed a technique that pulls nanoscopic metal crystals to eliminate defects. By gently and repeatedly stretching the crystal, scientists move "dislocations" (rows of atom-level defects) to free surfaces, where ...
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