There's a metal that melts in your hand and is safe to play with — here's how it works
There's a metal that melts in your hand and is safe to play with — he…
2017年10月11日
BUSINESS INSIDERDave Mosher, Shira Polan, Nicola Fernandez
Gallium has a cool and unusual characteristic that you can melt it with your body temperature. Holding onto a piece of gallium will cause it to melt. | Interesting Engineering
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Gallium has a cool and unusual characteristic that you can melt it …
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This Liquid Metal MELTS Laptops! Gallium makes aluminum brittle because it diffuses rapidly into the grain boundaries of aluminum and disrupts its metallic bonding. Aluminum normally has a ductile face-centered cubic structure, but when gallium infiltrates the grain boundaries, it prevents aluminum atoms from bonding properly across them. This weakens the structure in a process called liquid metal embrittlement, causing the metal to lose its ductility and fracture under small stresses. 📷 credit
This Liquid Metal MELTS Laptops! Gallium makes aluminum brittle b…
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