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

Published 4 issues per year

ISSN Print: 1093-3611

ISSN Online: 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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FORECAST OF THE CHEMICAL AND TRANSPORT PROPERTIES OF A CARBON-OXYGEN PLASMA IN ISOCHORIC CONDITIONS

Volume 15, Issue 2, 2011, pp. 115-122
DOI: 10.1615/HighTempMatProc.v15.i2.40
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ABSTRACT

The composition and transport properties of CO2, CO, CH4, CO + Ar, CO + Fe have been calculated at constant volume. Except at low temperature (T < 3,000 K) with the formation of condensed species or more complex molecules, pressure increases with temperature at constant volume. For example, 1 mole of CH4 starting at 0.1 MPa and 298 K can reach 35 MPa at 20,000 K. The net result is a shift to a higher temperature of dissociation and ionization. The electrical conductivity ae at constant volume increases drastically relatively to that obtained at 0.1 MPa over 15,000 K, in spite of the decrease of the electron density ne. The decrease is due to the increase of neutral species ni with a much lower electron-neutral species collision cross section σeie is increased proportionally to the inverse of niei). The viscosity always exhibits a maximum when the ionization degree reaches 3% but this maximum is shifted to a higher temperature and its peak value is higher. The thermal conductivity peak due to dissociation is shifted to higher temperature and its value is reduced while the conductivity peak due to ionization, again being shifted to higher temperature, is increased in its value.

REFERENCES
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  5. Pateyron, B., Elchinger, M. F., Delluc, G., and Fauchais, P., Thermodynamic and transport properties of Ar-H<sub>2</sub> and Ar-He plasma gases used for spraying at atmospheric pressure. I: Properties of the mixtures.

  6. Elchinger, M. F., Pateyron, B., Delluc, G., and Fauchais, P., Calculs des propretes thermo-dynamiques et de transport des plasmas Ar-N<sub>2</sub> et Ar-NH<sub>3</sub> a la pression atmospherique.

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