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Topic: Why does aluminum react exothermically with palladium?  (Read 3092 times)

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Offline BluRay

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Why does aluminum react exothermically with palladium?
« on: March 15, 2009, 09:59:01 AM »
Hello to everyone, I'm new into this forum.

Why does aluminum react exothermically with palladium?
http://en.wikipedia.org/wiki/Pyrotechnic_initiator
Quote
   Palladium-aluminium

    Palladium-clad aluminium wires can be used as a fuse wire, known as Pyrofuze. The reaction is initiated by heat, typically supplied by electric current pulse. The reaction begins at 600 °C, the melting point of aluminium, and proceeds violently to temperature of 2200-2800 °C. The reaction does not need presence of oxygen, and the wire is consumed.

There is also a video:
http://www.youtube.com/watch?v=uiLUjlvau38

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