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

年間 4 号発行

ISSN 印刷: 1093-3611

ISSN オンライン: 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

MEASUREMENT OF THE DISSOCIATION DEGREE OF OXYGEN IN AIR PLASMA-ARC-JETS

巻 5, 発行 2, 2001, 8 pages
DOI: 10.1615/HighTempMatProc.v5.i2.60
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要約

The dissociation degree of molecular oxygen in air is measured on the axis of a plasma arcjet thanks to the actinometry technique. For this purpose, a small amount of argon is introduced into the gas of interest, and two emission lines, one of atomic oxygen (777.3 nm) and one of argon (811.5 nm), are analyzed locally, together with the corresponding electron density and energy distribution. Then, provided that a number of assumptions are satisfied, the dissociation degree of oxygen is proportional to the ratio of the line intensities. It is found to decrease from 1 at the nozzle exit down to 0.3 at a distance of 10 cm and increase again where a shock wave is expected.

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