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Electromagnetic Field Formed by Shock Compression of a Conducting Magnetic

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Combustion, Explosion and Shock Waves Aims and scope

Abstract

The structure of the electromagnetic field in a conducting magnetic compressed in a shock wave is analyzed. It is shown that compression of a magnetic material in an external magnetic field leads to origination of a system of two currents identical in magnitude but opposite in direction. One of them passes ahead of the shock front in the undisturbed substance, and the oppositely directed current passes over the shock‐compressed substance. As the shock wave moves further, the absolute value of current monotonically increases. The parameters determining the global electromagnetic pattern in the shock‐compressed magnetic are found. These parameters can be considered as the generalization of the governing parameters found previously by the authors for a nonmagnetic conductor. The formulated model offers a qualitative explanation for the results of dynamic experiments with an 80NKhS magnetic soft alloy. The voltage record on the specimen surface indicates effective shock‐induced demagnetization of the material.

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Authors and Affiliations

  1. Siberian Division, Russian Academy of Sciences, Lavrent'ev Institute of Hydrodynamics, Novosibirsk, 630090

    S. D. Gilev

  2. Novosibirsk State University, Novosibirsk, 630090

    T. Yu. Mikhailova

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  1. S. D. Gilev
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  2. T. Yu. Mikhailova
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Gilev, S.D., Mikhailova, T.Y. Electromagnetic Field Formed by Shock Compression of a Conducting Magnetic. Combustion, Explosion, and Shock Waves 39, 704–714 (2003). https://doi.org/10.1023/B:CESW.0000007685.61749.a9

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  • DOI: https://doi.org/10.1023/B:CESW.0000007685.61749.a9

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