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Metal/Metal Exothermic Reactions Induced by Low Velocity Impact*

Published online by Cambridge University Press:  10 February 2011

Diana L. Woody ,
Jeffery J. Davis  and
Philip J. Miller
Diana L. Woody
Affiliation:
Naval Air Warfare Center Weapons Division, China Lake, California 93555-6001
Jeffery J. Davis
Affiliation:
Naval Air Warfare Center Weapons Division, China Lake, California 93555-6001
Philip J. Miller
Affiliation:
Naval Air Warfare Center Weapons Division, China Lake, California 93555-6001
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Abstract

This paper discusses experimental results from an effort conducted to discern the basic mechanism of reactions in porous metal/metal compositions under rapid plastic flow conditions. Small-scale impact tests were performed on various intermetallic mixtures: 3CuO + 2AI, Fe2O3 + 2AI, Ni + Al, and 5Ti + 3Si. The addition of polytetrafluoroethylene (Teflon) to the metal/metal mixtures has been demonstrated to affect the extent of the reactions. Real-time emissivity and species evolution measurements of the reacting materials were used to discern the chemical reactions occurring under rapid plastic flow conditions.

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