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Ultra rapid heating by spontaneous mixing reactions in metal-metal multilayer composites

Published online by Cambridge University Press:  31 January 2011

F. Bordeaux  and
A. R. Yavari
F. Bordeaux
Affiliation:
LTPCM (CNRS UA29), Institut National Polytechnique de Grenoble, BP 75, 38402 Saint Martin d'Hères Cédex, France
A. R. Yavari
Affiliation:
LTPCM (CNRS UA29), Institut National Polytechnique de Grenoble, BP 75, 38402 Saint Martin d'Hères Cédex, France
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Abstract

The mixing of multilayers of two pure metals or alloys A and B with strong negative heat of mixing ΔHm can result in rapid heat release provided that the mixing time is short compared to the time to dissipate ΔHm in the environment, which is the case for sufficiently thin layers. The mixing reaction sets off the heat release when the composite is heated up to temperatures near or equal to the melting temperature of the metal layer with the lower melting point. Experimental results are given for the mechanisms and for the kinetics of the exothermic reaction. Possible applications of these materials are given.

Type
Articles
Information
Journal of Materials Research , Volume 5 , Issue 8 , August 1990 , pp. 1656 - 1661
Copyright
Copyright © Materials Research Society 1990

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