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Effect of Impurity Gases on the Combustion of a Mechanically Activated Ni + Al Mixture

  • COMBUSTION, EXPLOSION, AND SHOCK WAVES
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Russian Journal of Physical Chemistry B Aims and scope Submit manuscript

Abstract

In this study, we compare the combustion of nonactivated and mechanically activated Ni + Al mixtures. The combustion of compacted specimens and specimens of bulk density is studied. The combustion rate, relative elongation of samples, initial density and density of combustion products, and the microstructure and phase composition of the initial mixtures and reaction products are investigated. It is found that mechanical activation (MA) leads to a significant increase in the burning rate and elongation of the pressed samples, while the bulk density samples retain their length during combustion.

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ACKNOWLEDGMENTS

The authors thank I.D. Kovalev for the X-ray phase study of the mixtures and their synthesis products, N.V. Sachkova for obtaining photographs of the microstructure of the samples, M.L. Busurina for measuring the particle size distribution, and R.A. Kochetkov for conducting experiments on the combustion of bulk density mixtures.

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  1. Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka, Russia

    N. A. Kochetov & B. S. Seplyarsky

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  1. N. A. Kochetov
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  2. B. S. Seplyarsky
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Correspondence to N. A. Kochetov.

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Kochetov, N.A., Seplyarsky, B.S. Effect of Impurity Gases on the Combustion of a Mechanically Activated Ni + Al Mixture. Russ. J. Phys. Chem. B 16, 66–71 (2022). https://doi.org/10.1134/S1990793122010079

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  • DOI: https://doi.org/10.1134/S1990793122010079

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