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

Publicado 4 números por año

ISSN Imprimir: 1093-3611

ISSN En Línea: 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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RELATION BETWEEN THE FLOW REGIME OF A PLASMA TORCH AND ITS ACOUSTIC BEHAVIOR

Volumen 2, Edición 1, 1998, pp. 25-33
DOI: 10.1615/HighTempMatProc.v2.i1.30
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SINOPSIS

In order to characterize the working regime of an argon plasma torch we measured and analysed by fast Fourier transform (FFT) the four following parameters : torch voltage, torch current, net radiative power emitted by the plasma jet, and noise (acoustic pressure) emitted by the torch. At high flow rate we observed a turbulent behavior characterized by a high correlation voltage -acoustic pressure or at lower flow rate a broad band spectrum whose global amplitude decreases with flow rate. These behaviors are attributed to the fluctuations of the arc root position. At low flow rates we observed in the acoustic pressure spectrum a narrow peak whose frequency decreases with flow rate and whose maximum amplitude coincides with turbulent laminar transition. We suggest these acoustic pressure fluctuations could result from the electric self oscillations of the arc. We give some results for other types of gases.

CITADO POR
  1. Tu Xin, Yan Jianhua, Yu Liang, Cen Kefa, Chéron Bruno, The nature of fluctuations in a double arc argon-nitrogen plasma jet, Applied Physics Letters, 91, 13, 2007. Crossref

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