Title :
Theoretical and experimental study of the interaction of the vacuum arc macromacrodroplet fraction with plasma
Author :
Vershinin, D.S. ; Goncharenko, I.M. ; Grigoriev, S.V. ; Koval, N.N. ; Kozyrev, A.V. ; Lopatin, I.V. ; Schanin, P.M.
Author_Institution :
High Current Electron. Inst., Tomsk, Russia
fDate :
26 Jun-3 Jul 2001
Abstract :
This paper presents the results of theoretical and experimental investigations of the interaction of the macromacrodroplet fraction of a vacuum arc with plasma. The theoretical model proposed to interpret experimental data takes into account the charging of a macromacrodroplet in plasma, the energy exchange between the macromacrodroplet and the plasma, the breaking of a liquid macromacrodroplet due to its own excessive negative charge, and the reflection of a charged macromacrodroplet by the positive space charge layer, which appears near the negative electrode immersed in plasma. The model predicts a considerable decrease in the number of macrodroplets of size less than 1 μm with increasing the negative voltage applied to the substrate. The theoretical results obtained are in rather good agreement with the experimental data on the separation of a macrodroplet fraction by a space charge layer
Keywords :
plasma-wall interactions; space charge; vacuum arcs; energy exchange; macrodroplet fraction; negative electrode; plasma; positive space charge layer; space charge layer; vacuum arc; vacuum arc macromacrodroplet; Cathodes; Coatings; Electrodes; Fractals; Plasmas; Rough surfaces; Space charge; Surface discharges; Vacuum arcs; Voltage;
Conference_Titel :
Science and Technology, 2001. KORUS '01. Proceedings. The Fifth Russian-Korean International Symposium on
Conference_Location :
Tomsk
Print_ISBN :
0-7803-7008-2
DOI :
10.1109/KORUS.2001.975140
