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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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Modelling of plasma dynamics in coaxial IPD accelerator

Том 6, Выпуск 1, 2002, 7 pages
DOI: 10.1615/HighTempMatProc.v6.i1.50
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Краткое описание

This paper presents the results of physico-mathematical modelling of plasma dynamics in a coaxial accelerator for IPD (Impulse Plasma Deposition) process. Metallic plasma is generated within the working gas due to electric discharge, ignited within inter-electrode region. Plasma spreads out in the form of a dynamically moving electric current sheet which is accelerated by the Lorentz force. Conditions favourable for evaluation of the Rayleigh-Taylor instability on the current sheet surface have been found during the computational studies of plasma movement. Appearance of this phenomenon explains non-uniform phase composition and morphology of coatings. By modifying the design of the plasma accelerator, we succeeded in reducing substantially R-T instability and in obtaining alpha-Al2O3 coatings instead of common gamma-Al2O3.
Proposed model, which is still being modified, does not yet take into account the effect of plasma being enriched with the products of the electrodes erosion. Nevertheless preliminary results have been obtained, accounting for the influence of eroded material on the dynamics of the discharge. Even at this stage the results of computer simulation are in semi-quantitative agreement with experimental observations.

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