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Aluminum micro-particles combustion ignited by underwater electrical wire explosion

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Abstract

The results of experiments on the ignition of aluminum micro-particles’ combustion by underwater electrical wire explosion (UEWE) are reported. A compact sub-microsecond timescale duration high-current (240 kA) pulsed power generator was used to explode copper and aluminum wires electrically in different aluminum powder suspensions. The combustion of the aluminum micro-particles was characterized by a target time-of-flight method and optical measurements of the exploding wire and aluminum suspension light emission. It was shown that, by using a proper solution and type of aluminum powder, this method allows aluminum micro-particle combustion in the estimated range of 32–79 % efficiency.

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Authors and Affiliations

  1. Physics Department, Technion, 32000, Haifa, Israel

    S. Efimov, L. Gilburd, A. Fedotov-Gefen, V. Tz. Gurovich, J. Felsteiner & Ya. E. Krasik

Authors
  1. S. Efimov
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  2. L. Gilburd
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  3. A. Fedotov-Gefen
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  4. V. Tz. Gurovich
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  5. J. Felsteiner
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  6. Ya. E. Krasik
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Corresponding author

Correspondence to Ya. E. Krasik.

Additional information

Communicated by F. Zhang.

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Efimov, S., Gilburd, L., Fedotov-Gefen, A. et al. Aluminum micro-particles combustion ignited by underwater electrical wire explosion. Shock Waves 22, 207–214 (2012). https://doi.org/10.1007/s00193-012-0361-3

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  • DOI: https://doi.org/10.1007/s00193-012-0361-3

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