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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

Publication de 4  numéros par an

ISSN Imprimer: 1093-3611

ISSN En ligne: 1940-4360

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00005 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.07 SJR: 0.198 SNIP: 0.48 CiteScore™:: 1.1 H-Index: 20

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ELECTRODE PHENOMENA IN DC ARCS AND THEIR INFLUENCE ON PLASMA TORCH DESIGN

Volume 6, Numéro 3, 2002, 18 pages
DOI: 10.1615/HighTempMatProc.v6.i3.60
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RÉSUMÉ

Control over the physical phenomena, which characterize the arc — electrode interaction strongly, influences plasma torch design. Arc cathodes are characterized by their electron emission mechanism as thermionic (hot) cathodes or as cold cathodes with an explosive or evaporative emission, and by their geometrical configuration as rod, button or well type cathodes. The anode is, in most cases, a passive component of the electrical circuit, collecting electrons from the arc, and the characterization of this current transfer is intimately coupled with the thermal and flow fields in the anode region, i.e. the anode boundary layer. The anode surface can be perpendicular or parallel to the arc axis and the flow. Since the arc electrode surface is necessarily in contact with the high temperature plasma, cooling is necessary and some erosion usually unavoidable. Means for controlling the arc - electrode interaction will be discussed concentrating on the use of fluid dynamics to influence the boundary layers. Recent theoretical and experimental results will be presented, which demonstrate the effectiveness of such approaches.

CITÉ PAR
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