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Plasma characteristics and electrical breakdown between metal and water electrodes

P. BRUGGEMAN1,* , E. RIBEŽL1, J. DEGROOTE2, J. VIERENDEELS2, C. LEYS1

Affiliation

  1. Department of Applied Physics, Faculty of Engineering, Ghent University, Jozef Plateaustraat 22, B-9000 Ghent, Belgium
  2. Department of Flow, Heat and Combustion Mechanics, Faculty of Engineering, Ghent University, Sint- Pietersnieuwstraat 41, B-9000 Ghent, Belgium

Abstract

Formation of plasma between a metallic pin and water electrode is investigated. A streamer to spark transition occurs when the pin is anode. The influence of the water surface deformation due to the ionic wind on the spark formation is discussed. High speed photography indicates that the streamers just before sparking are always branched near the water surface. Optical and electrical characteristics of a stable filamentary glow-like discharge regime, ignited after electrical breakdown with currents between 20 and 120 mA are studied..

Keywords

Plasma, Electrical breakdown, Glow-discharge, Water electrode.

Submitted at: March 1, 2008
Accepted at: July 10, 2008

Citation

P. BRUGGEMAN, E. RIBEŽL, J. DEGROOTE, J. VIERENDEELS, C. LEYS, Plasma characteristics and electrical breakdown between metal and water electrodes, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 8, pp. 1964-1967 (2008)