Transient processes during formation of a steady-state glow discharge in air

Yury D. Korolev, Oleg B. Frants, Vladimir G. Geyman, Vladimir S. Kasyanov, Nikolay V. Landl

    Research output: Contribution to journalArticlepeer-review

    34 Citations (Scopus)

    Abstract

    This paper describes the investigation of an atmospheric-pressure glow discharge in air at a current of 0.05-0.3 A. Before the glow discharge is established, a preliminary nonsteady temporal stage is available in the gap. The principal process, which governs with the nonsteady-state discharge behavior, is the glow-to-spark transition phenomenon. The transition is initiated due to the explosive emission instability in the near-cathode layer of glow-type discharge that results in a microexplosion of the cathode surface and appearing of a spark cathode spot. At a low current, the spot is extinguished, so that the discharge starts burning again in one of the glow modes. After that, a new act of transition occurs and so on. The preliminary nonsteady-state stage ensures two prerequisites. First, an effective gas pressure decreases to a low value. Second, due to microexplosions, conditioning of the cathode surface is provided. Both factors facilitate establishing the normal glow discharge.

    Original languageEnglish
    Article number6275499
    Pages (from-to)2951-2960
    Number of pages10
    JournalIEEE Transactions on Plasma Science
    Volume40
    Issue number11 PART1
    DOIs
    Publication statusPublished - 27 Aug 2012

    Keywords

    • Atmospheric-pressure plasma jets
    • glow-to-spark transition
    • high-pressure glow discharge

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics
    • Condensed Matter Physics

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