Controlling Combustion Wave Propagation for Transition Metal/Alloy/Cermet Foam Synthesis

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Abstract

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High-purity nickel, copper, cobalt and alloy foams are synthesized through combustion in an open container (i.e., in air at ambient pressure). This is achieved by varying the fuel/oxidizer ratio during the combustion of a metal nitrate–glycine mixture, a technique previously used for oxide powder formation. By tuning this experimental parameter, reaction propagation is controlled to enable particle agglomeration, leading to foam structures.

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