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Influence of the Amount of Fe2O3Modifier on the Oxidation Rate of ASD-4 Micron-Sized Powder

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Combustion, Explosion, and Shock Waves Aims and scope

Abstract

The effect of the modification of ASD-4 micron-sized aluminum powder by iron oxide on its oxidation in air was investigated. The metal particle surface was modified by coating with a gel based on Fe(OH)(HCOO)2 and ethylene glycol monomethyl ether, CH3OC2H4OH, with subsequent heat treatment in air. It was found that the presence of iron oxide generally had a positive effect on the oxidation dynamics of ASD-4 powder under heating in air. The oxidation rate of modified powders increases with increasing content of iron oxide in them. X-ray diffraction analysis using a synchrotron radiation source under heating to 1000°C showed the presence of only the basic phases of \(\gamma\)-Al2O3and \(\alpha\)-Al2O3, \(\gamma\)-Fe2O3, and \(\alpha\)-Fe2O3in the samples, and other iron oxides or intermetallic compounds were not detected. At a mass concentration of 10% Fe, an earlier appearance of the \(\alpha\)-Al2O3phase was observed and the exothermic heat release peak was shifted to lower temperatures (893°C) compared to the unmodified ASD-4 powder (1045°C).

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Authors and Affiliations

  1. Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, 620990, Ekaterinburg, Russia

    V. G. Shevchenko, V. N. Krasil’nikov, D. A. Eselevich & A. V. Konyukova

  2. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

    Z. S. Vinokurov

  3. Novosibirsk State University, 630090, Novosibirsk, Russia

    Z. S. Vinokurov & A. I. Ancharov

  4. Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

    A. I. Ancharov & B. P. Tolochko

  5. Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, 630128, Novosibirsk, Russia

    B. P. Tolochko

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  1. V. G. Shevchenko
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  2. V. N. Krasil’nikov
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  3. D. A. Eselevich
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  4. A. V. Konyukova
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  5. Z. S. Vinokurov
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  6. A. I. Ancharov
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  7. B. P. Tolochko
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Correspondence to V. G. Shevchenko.

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Shevchenko, V.G., Krasil’nikov, V.N., Eselevich, D.A. et al. Influence of the Amount of Fe2O3Modifier on the Oxidation Rate of ASD-4 Micron-Sized Powder. Combust Explos Shock Waves 56, 156–162 (2020). https://doi.org/10.1134/S0010508220020069

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  • DOI: https://doi.org/10.1134/S0010508220020069

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