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Evaluation of Molar Volume Effect for Calculation of Diffusion in Binary Systems
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SYSNO ASEP 0388529 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Evaluation of Molar Volume Effect for Calculation of Diffusion in Binary Systems Author(s) Vach, Marek (GLU-S) RID, SAI
Svojtka, Martin (GLU-S) SAI, RID, ORCIDSource Title Metallurgical and Materials Transactions B, Process Metallurgy and Materials Processing Science. - : Springer - ISSN 1073-5615
Roč. 43, č. 6 (2012), s. 1446-1453Number of pages 8 s. Publication form WWW - WWW Language eng - English Country US - United States Keywords difussion profile ; molar efect ; regression function Subject RIV DB - Geology ; Mineralogy R&D Projects IAA3013006 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) Institutional support GLU-S - RVO:67985831 UT WOS 000312342900022 EID SCOPUS 84864827509 DOI 10.1007/s11663-012-9705-8 Annotation This article relates the theoretical evaluation of the effect of a molar volume change in the diffusion profile of a binary system. This study is based on the regression fit of a diffusion profile using a selected function in an inverse form. For the calculation of concentration-dependent diffusivity according to the Sauer and Freise (and Wagner) treatment of the Boltzmann-Matano relation, this inverse regression function is further modified by the inclusion of molar volume, which is dependent on the molar composition of a diffusing two-component mixture. Following the conversion of the initial relation to the form that enables the direct integration of the used inverse function, which fits the diffusion profile, the formulas for the analytical calculation of diffusivity are obtained. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Year of Publishing 2013
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