Influence of gas flow on the performance of surface-wave discharges sustained in capillary tubes

The performance of argon surface-wave plasma columns generated at atmospheric pressure in capillary tubes has been tested under a wide range of total gas flow conditions, with special attention to column length and gas temperature as key parameters for the application of such discharges in material...

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Bibliographic Details
Published in:Plasma sources science & technology 2018-07, Vol.27 (7), p.77001
Main Authors: Martínez, Juana, Castaños-Martínez, Eduardo, González-Gago, Cristina, Rincón, Rocío, Calzada, María Dolores, Muñoz, José
Format: Article
Language:English
Subjects:
gas flow
gas temperature
plasma
Reynolds number
turbulence
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Summary:The performance of argon surface-wave plasma columns generated at atmospheric pressure in capillary tubes has been tested under a wide range of total gas flow conditions, with special attention to column length and gas temperature as key parameters for the application of such discharges in material synthesis and/or modification and chemical analysis. Varying the total gas flow allows significant control over the total column length and gas temperature, thus modulating both the residence time and the efficiency of chemical processes taking place within the discharge. Moreover, an important connection between the physical mechanisms responsible for discharge sustainment in SWDs and gas flow has been experimentally proven.
ISSN:0963-0252
1361-6595
1361-6595
DOI:10.1088/1361-6595/aace1b