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International Journal of Fluid Mechanics Research

Published 6 issues per year

ISSN Print: 2152-5102

ISSN Online: 2152-5110

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: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 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: 0.0002 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: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

Indexed in

A Mathematical Model of Surface-Reaction Diffusion

Volume 27, Issue 2-4, 2000, pp. 312-319
DOI: 10.1615/InterJFluidMechRes.v27.i2-4.100
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ABSTRACT

Contact between two solid reagents, when the atoms of one of them exhibit high mobility over the surface of the other may result in a rapid surface diffusion penetration accompanied by a chemical reaction. In the case of reactions with participation of solid substances with low surface energy (tungsten, molybdenum and vanadium oxides) the diffusion was experimentally found to cease entirely when the visible boundary of the surface reaction moved through a certain, critical, not temperature dependent, distance. The article discusses a mathematical model of this phenomenon, constructed by subdividing the total reagent flux into the surface, intergranular and intragranular diffusion fluxes. The analytic solution was obtained on the assumption that the limiting factor of the process consists in slow motion of the front of chemical reaction into the grains of the substrate material. The model predicts stabilization of the surface concentration distribution of the reaction product. The analytic results were verified on the basis of experimental data for the CuO + MoO3 → CuMoO4 system. The temperature dependence of the characteristic time of stabilization of the length of the surface layer is described by the Arrhenius law, corresponding to the temperature variation of the chemical reaction constant.

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