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

Publicou 4 edições por ano

ISSN Imprimir: 1093-3611

ISSN On-line: 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

Indexed in

OSCILLATIONS IN DC PLASMA JET AT REDUCED PRESSURES

Volume 11, Edição 2, 2007, pp. 175-180
DOI: 10.1615/HighTempMatProc.v11.i2.20
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RESUMO

The oscillations of dc plasma jet generated by the hybrid water/argon plasma torch with external anode were studied at different ambient pressures. Fluctuations of plasma radiation from jet were recorded using system of photo-diodes with high frequency response. The frequency and the phase velocity of plasma flow oscillations were determined for various arc currents and argon flows and various ambient pressures. Two main types of oscillations were observed. The first type of perturbations is connected with a movement of an anode attachment and the second type of oscillations arises from plasma boundary instability. Frequencies of this two types oscillations approach each other when the pressure is reduced and the expansion zone was formed. In this case frequencies of these oscillations were equal to 200−350 kHz and their phase velocities were close to thousand meters per second.

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