Gallium v aluminium

Bringing gallium and aluminium together has some interesting and occasionally rather explosive results, as Dan found out in this tale from the prep room video.

Gallium is a metal which, due to its melting point of 29.76°C, will turn to liquid in your hand. And, unlike mercury, pure gallium is safe to handle.

Bringing gallium and aluminium together has some interesting and occasionally rather explosive results, as we discovered in this video.

Liquid metal embrittlement is a phenomenon where ductile metals, like aluminium, become brittle, when exposed to certain liquid metals, like gallium.

This doesn't happen through a chemical reaction, but is purely a physical one, where the liquid nature of gallium allows it to get into spaces within the aluminium structure.

This embrittlement of metals is real a hazard in manufacturing industries as well as other fields where ductile metals may come into contact with liquid metals.

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