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Surface treatment of metals in the plasma of a nanosecond diffuse discharge at atmospheric pressure

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Abstract

The paper presents experimental results on surface treatment of metals in the plasma of a runaway electron preionized diffuse discharge (REP DD) in atmospheric pressure nitrogen. The parameters under study are the elemental composition, the nanohardness, the surface free energy (SFE) and the surface roughness of metals before and after plasma treatment. The study shows that REP DD plasma treatment with 105 discharge pulses provides ultrafine surface cleaning of the treated metals from carbon and increases their surface free energy up to 3 times, whereas the surface nanohardness and roughness of the treated metals remain almost unchanged.

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Authors and Affiliations

  1. Institute of High Current Electronics, 2/3 Akademichesky Ave., 634055, Tomsk, Russia

    Mikhail Erofeev, Vasilii Ripenko, Mikhail Shulepov & Victor Tarasenko

  2. National Research Tomsk Polytechnic University, 30 Lenin Ave., 634050, Tomsk, Russia

    Mikhail Erofeev & Victor Tarasenko

Authors
  1. Mikhail Erofeev
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  2. Vasilii Ripenko
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  3. Mikhail Shulepov
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  4. Victor Tarasenko
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Corresponding author

Correspondence to Mikhail Erofeev.

Additional information

Contribution to the Topical Issue “Physics of Ionized Gases (SPIG 2016)”, edited by Goran Poparic, Bratislav Obradovic, Dragana Maric and Aleksandar Milosavljevic.

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Erofeev, M., Ripenko, V., Shulepov, M. et al. Surface treatment of metals in the plasma of a nanosecond diffuse discharge at atmospheric pressure. Eur. Phys. J. D 71, 117 (2017). https://doi.org/10.1140/epjd/e2017-70636-6

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  • DOI: https://doi.org/10.1140/epjd/e2017-70636-6

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