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Palladium-aluminiumPalladium-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 isconsumed. 
The reaction does not need presence of oxygen
a thin surface layer of aluminium oxide that forms when the metal is exposed to air