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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

Indexed in

IMPORTANCE OF THE CATALYCITY DURING AN ATMOSPHERIC RE-ENTRY PHASE OF AEROSPACE VEHICLES

Volumen 8, Edición 2, 2004, pp. 283-292
DOI: 10.1615/HighTempMatProc.v8.i2.120
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SINOPSIS

During the atmospheric re-entry phase of aerospace vehicles, the physico-chemical phenomena taking place on the hot parts (nose cap and wing leading edges) can lead to an important excess of heating and a damage of the protective materials. One aim of the researches undertaken at the PROMES-CNRS laboratory is the study of the catalytic recombination of atomic oxygen under conditions nearby Earth or Mars atmospheric re-entry. Four parameters allow to fully describe the catalycity phenomena: the recombination coefficient γ, the accommodation coefficient β, the catalycity rate kw linked to the apparent recombination coefficient γ' (equal to γ.β) and the recombination thermal flux transferred to the material. Experimental determination of these four parameters, simulation and modeling are presented according to a multi-scale approach: for the experimental part, microscopic scale for the recombination coefficient, mesoscopic scale for both the thermal flux of recombination and accommodation coefficient, and for the theoretical part, atomic scale for molecular dynamic simulation and macroscopic scale for kinetic modeling. Examples of results are given for silica and alumina ceramics in the temperature range 800-2300 K.

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