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

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ISSN Печать: 1093-3611

ISSN Онлайн: 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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MATHEMATICAL MODELING OF THE SUPERSONIC D.C. PLASMA SPRAY TORCH: INFLUENCE OF HYDROGEN AND CURRENT INTENSITY

Том 4, Выпуск 1, 2000, 26 pages
DOI: 10.1615/HighTempMatProc.v4.i1.30
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The effects of current intensity and hydrogen on argon supersonic plasma flow inside a d.c. torch are investigated in order to gain insight of the flow structure and transfer mechanisms inside the torch. A two-dimensional axisymmetric model and a non-equilibrium cathode sheath model are used for this purpose. The model is validated by comparison with published experiments and good agreement is found between the model and the measurements. The study describes the aerodynamic, thermal and electrical fields inside the nozzle. It reveals that the presence of hydrogen changes considerably the plasma features. The study of the current intensity influence gives the trend and values of the operating conditions for the optimal use of the system for spraying applications. This study shows that the effect of the current intensity on the flow is different from the subsonic cases. It also indicates that a maximum current exists, beyond which the flow at the exit is not completely supersonic.

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