A Comparison of Different Ni+Al Structural Energetic Materials

Abstract

A comparison of different Ni+Al reactive materials is conducted to elucidate the effects of microstructure morphology on performance. CTH, a multi-material Eulerian hydrocode, was utilized to study mesoscale deformation during simulated rod-on-anvil experiments. It is found that the cold sprayed Ni+Al, which has a more topologically connected nickel phase, is likely to be more reactive because of enhanced deformation in the Ni phase relative to explosively compacted Ni+Al, where the Ni phase undergoes less deformation. Rod-on-anvil impact tests verify that cold sprayed Ni+Al is indeed more reactive than explosively compacted Ni+Al when subject to impact.

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Aydelotte, B., Thadhani, N.N. A Comparison of Different Ni+Al Structural Energetic Materials. MRS Online Proceedings Library 1521, >1215210802 (2013). https://doi.org/10.1557/opl.2013.48

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