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Initiation of dusty structures in chain reactions under the action of gyrotron radiation on a mixture of metal and dielectric powders with an open boundary

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Abstract

A dusty plasma formed in chain exothermal reactions initiated by radiation of a high-power gyrotron in mixtures of metal and dielectric powders has been described. An oscillatory character of such chain reactions, as well as the appearance of dust particles at the first (explosive) stage, has been detected. The tracks, velocities, and sizes of dust particles have been measured. It has been revealed that ensembles of dust particles appear in a reactor after switching-off of the gyrotron against the background of development of chemical reactions. The time of existence of these ensembles is three or four orders of magnitude larger than the duration of a microwave radiation pulse. The quasistationary state of the low-temperature plasma with charged macroparticles appears because of both the chemical heating of the mixture in the reactor and thermophoresis. It has been shown that dust particles are necessary as crystallization nuclei for the creation (or deposition) of complex composites of nano- and micromaterials produced in secondary plasma chemical synthesis.

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Author information

Authors and Affiliations

  1. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, 119991, Russia

    N. N. Skvortsova, D. V. Malakhov, V. D. Stepakhin, S. A. Maiorov, G. M. Batanov, V. D. Borozosekov, E. M. Konchekov, L. V. Kolik, A. A. Letunov, E. A. Obraztsova, A. E. Petrov, K. A. Sarksyan & N. K. Kharchev

  2. Moscow Technological University (MIREA), Moscow, 119454, Russia

    N. N. Skvortsova, D. V. Malakhov, E. A. Obraztsova, D. O. Pozdnyakov & G. V. Ukryukov

  3. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow, 115409, Russia

    N. N. Skvortsova

  4. Pirogov Russian National Research Medical University, Moscow, 117997, Russia

    D. V. Malakhov, V. D. Stepakhin, V. D. Borozosekov, E. M. Konchekov & A. E. Petrov

  5. Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, 603950, Russia

    A. A. Sorokin

Authors
  1. N. N. Skvortsova
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  2. D. V. Malakhov
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  3. V. D. Stepakhin
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  4. S. A. Maiorov
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  5. G. M. Batanov
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  6. V. D. Borozosekov
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  7. E. M. Konchekov
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  8. L. V. Kolik
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  9. A. A. Letunov
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  10. E. A. Obraztsova
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  11. A. E. Petrov
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  12. D. O. Pozdnyakov
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  13. K. A. Sarksyan
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  14. A. A. Sorokin
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  15. G. V. Ukryukov
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  16. N. K. Kharchev
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Corresponding author

Correspondence to N. N. Skvortsova.

Additional information

Original Russian Text © N.N. Skvortsova, D.V. Malakhov, V.D. Stepakhin, S.A. Maiorov, G.M. Batanov, V.D. Borozosekov, E.M. Konchekov, L.V. Kolik, A.A. Letunov, E.A. Obraztsova, A.E. Petrov, D.O. Pozdnyakov, K.A. Sarksyan, A.A. Sorokin, G.V. Ukryukov, N.K. Kharchev, 2017, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2017, Vol. 106, No. 4, pp. 240–246.

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Skvortsova, N.N., Malakhov, D.V., Stepakhin, V.D. et al. Initiation of dusty structures in chain reactions under the action of gyrotron radiation on a mixture of metal and dielectric powders with an open boundary. Jetp Lett. 106, 262–267 (2017). https://doi.org/10.1134/S0021364017160135

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  • DOI: https://doi.org/10.1134/S0021364017160135

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