\(\mu\)s and ns twin surface dielectric barrier discharges operated in air

  • Electrode erosion through continual long-timescale operation (60 min) of identical twin surface dielectric barrier discharges (twin SDBDs) powered either by a microsecond (\(\mu\)s) or a nanosecond timescale (ns) voltage source is investigated. The twin SDBDs are characterized using current–voltage measurements, optical emission spectroscopy, and phase integrated ICCD imaging. The temporally and spatially averaged gas temperature, consumed electric power, and effective discharge parameters (reduced electric field, and electron density) are measured. The μ\(\mu\)s twin SDBD is shown to operate in a filamentary mode while the ns twin SDBD is shown to operate in a more homogeneous mode (i.e. non filamentary). Despite a similarity of the effective discharge parameters in both the μs and ns twin SDBD, erosion of the nickel coated electrodes caused by operation of the twin SDBD differs strongly. Only the formation of a moderate number of nickel oxide species is observed on the surface of the ns twin SDBD electrodes. In contrast, the nickel coated electrodes are locally melted and considerably higher densities of oxides are observed around the eroded areas of the μs twin SDBD, due to the filamentary nature of the discharge.

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Author:Ryan Thomas Nguyen-SmithORCiDGND, Alexander BöddeckerORCiDGND, Lars SchückeORCiDGND, Nikita BibinovGND, Ihor KorolovORCiDGND, Quan-Zhi ZhangORCiDGND, Thomas MussenbrockORCiDGND, Peter AwakowiczORCiDGND, Julian SchulzeORCiDGND
Parent Title (English):Plasma sources science and technology
Subtitle (English):from electrode erosion to plasma characteristics
Publisher:IOP Publishing
Place of publication:Bristol, Vereinigtes Königreich
Document Type:Article
Date of Publication (online):2024/02/16
Date of first Publication:2022/03/09
Publishing Institution:Ruhr-Universität Bochum, Universitätsbibliothek
Tag:SDBD; atmospheric pressure air plasma; electrode erosion; filamentary DBD; ns pulse; optical emission spectroscopy; uniform DBD
Issue:3, Artikel 035008
First Page:035008-1
Last Page:035008-17
Institutes/Facilities:Lehrstuhl für Allgemeine Elektrotechnik und Plasmatechnik
Dewey Decimal Classification:Technik, Medizin, angewandte Wissenschaften / Elektrotechnik, Elektronik
open_access (DINI-Set):open_access
faculties:Fakultät für Elektrotechnik und Informationstechnik
Licence (English):License LogoCreative Commons - CC BY 4.0 - Attribution 4.0 International