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Pulsed heating of thin powder layers by intense microwaves

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Abstract

Thin (0.05 cm) layers of mechanical mixtures of conductive and insulating powders are heated by microwave pulses with an intensity of about 10 kW/cm2. For mW-power microwaves, the absorption thickness in the mixtures is found to be on the order of 1 cm. For intensities of 10 kW/cm2 and above, pulse durations of 5–8 ms, and the number of pulses in a train of 5 or less, the powder layer melts and the characteristic spatial scale of absorption decreases to ≈0.05 cm. The reflection factor drops during a microwave pulse. Ways of improving the absorption efficiency by initiating surface breakdowns and plasma formation in pores between coarse grains in the bulk of the powders are considered.

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References

  1. D. J. Agrawal, J. Mater. Educ. 19, 49 (1999).

    Google Scholar 

  2. Yu. V. Bykov and A. G. Eremeev, in High-Frequency Discharge in Wave Fields (Inst. Prikl. Fiz., Gorki, 1988), pp. 265–289.

    Google Scholar 

  3. Yu. N. Kovneristyi, I. N. Lazareva, and A. A. Ravaev, Microwave Radiation Absorbents (Nauka, Moscow, 1982).

    Google Scholar 

  4. G. M. Batanov, E. F. Bol’shakov, A. A. Dorofeyuk, et al., J. Phys. D 29, 1641 (1996).

    Article  ADS  Google Scholar 

  5. L. D. Landau and E. M. Lifshitz, in Course of Theoretical Physics, Vol. 8: Electrodynamics of Continuous Media (Nauka, Moscow, 1982; Pergamon, New York, 1984), Parag. 93, 92.

    Google Scholar 

  6. E. A. Galstyan and A. V. Ravaev, Izv. Vyssh. Uchebn. Zaved., Radiofiz. 30, 1243 (1987).

    ADS  Google Scholar 

  7. S. I. Gritsinan, A. A. Dorofeyuk, I. A. Kossyi, and A. N. Magunov, Teplofiz. Vys. Temp. 25, 1068 (1987).

    Google Scholar 

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Authors and Affiliations

  1. General Physics Institute, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 117942, Russia

    G. M. Batanov, N. K. Berezhetskaya, I. A. Kossyi, A. N. Magunov & V. P. Silakov

Authors
  1. G. M. Batanov
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  2. N. K. Berezhetskaya
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  3. I. A. Kossyi
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  4. A. N. Magunov
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  5. V. P. Silakov
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Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 71, No. 7, 2001, pp. 119–123.

Original Russian Text Copyright © 2001 by Batanov, Berezhetskaya, Kossy\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\), Magunov, Silakov.

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Batanov, G.M., Berezhetskaya, N.K., Kossyi, I.A. et al. Pulsed heating of thin powder layers by intense microwaves. Tech. Phys. 46, 905–909 (2001). https://doi.org/10.1134/1.1387555

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  • DOI: https://doi.org/10.1134/1.1387555

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