Effects of cathode surface properties on glow-to-arc transition in a short positive corona gap in ambient air

M. Cernak, E.M. Veldhuizen, van, I. Morva, W.R. Rutgers

Research output: Contribution to journalArticleAcademicpeer-review

18 Citations (Scopus)

Abstract

Measurements were made of current growth waveforms corresponding to the glow-to-arc transition in a 1 cm positive point-to-plane gap in conditions similar to those in pulsed corona devices used for flue gas cleaning. The glow-to-arc transition was significantly accelerated using a freshly polished unconditioned cathode surface. A duration of glow-to-arc transition as short as 25 ns was observed using a graphite-coated cathode. A possible explanation in terms of the cathode sheath break-ups is presented.
Original languageEnglish
Pages (from-to)1126-1132
Number of pages7
JournalJournal of Physics D: Applied Physics
Volume28
Issue number6
DOIs
Publication statusPublished - 1995

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