Development of surface discharge along a dielectric with large dielectric constant in gas in the nanosecond range

B. M. Koval'chuk, V. V. Kremnev, G. A. Mesyats, Ya Ya Yurike

    Research output: Contribution to journalArticle

    Abstract

    The discharge from a metallic edge along the surface of a dielectric with dielectric constant of the order of 100 or larger is investigated. The dependences of the rate of expansion of the discharge, the time lag, and the volt-ampere characteristics are obtained for exposure times of the order of 10-9 sec for plates made of barium titanate, titanium dioxide, and steatite ceramicwith thickness of the order of 1 mm or less at voltages up to 1.5 kV of different polarity. The average rate of expansion of the figure of luminosity after a time of ≤3 nsec is equal to 106 cm/sec in order of magnitude. It is shown that from a negative point the discharge is initiated by the self-electron emission current, while from a positive point it is initiated by the self-ionization current. The basic equations are given for a commutator utilizing surface discharge from a large number of points.

    Original languageEnglish
    Pages (from-to)39-44
    Number of pages6
    JournalJournal of Applied Mechanics and Technical Physics
    Volume14
    Issue number1
    DOIs
    Publication statusPublished - 1975

    Fingerprint

    Surface discharges
    Steatite
    Permittivity
    permittivity
    Electric commutators
    Barium titanate
    Electron emission
    Gases
    gases
    Discharge (fluid mechanics)
    Titanium dioxide
    Ionization
    Luminance
    volt-ampere characteristics
    talc
    expansion
    commutators
    Electric potential
    titanium oxides
    electron emission

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)
    • Engineering(all)

    Cite this

    Development of surface discharge along a dielectric with large dielectric constant in gas in the nanosecond range. / Koval'chuk, B. M.; Kremnev, V. V.; Mesyats, G. A.; Yurike, Ya Ya.

    In: Journal of Applied Mechanics and Technical Physics, Vol. 14, No. 1, 1975, p. 39-44.

    Research output: Contribution to journalArticle

    Koval'chuk, B. M. ; Kremnev, V. V. ; Mesyats, G. A. ; Yurike, Ya Ya. / Development of surface discharge along a dielectric with large dielectric constant in gas in the nanosecond range. In: Journal of Applied Mechanics and Technical Physics. 1975 ; Vol. 14, No. 1. pp. 39-44.
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