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A model for the prediction of liquid–liquid interfacial energies

Brillo, Jürgen and Schmid-Fetzer, Rainer (2014) A model for the prediction of liquid–liquid interfacial energies. Journal of Materials Science, 49, pp. 3674-3680. Springer. doi: 10.1007/s10853-014-8074-x. ISSN 0022-2461.

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A model for the calculation of liquid–liquid interfacial energies is presented. It is based on the assumption that the interface can be treated as a separate thermodynamic phase. Its derivation has been performed in an analogous way as the derivation of the Butler equation for the surface tension of liquid alloys. It requires as input parameters the excess free energy and the compositions of the bulk phases as functions of temperature. In addition, it also requires the partial molar volumes of the components. Comparison with existing experimental data for Al–Pb, Al–In, and Cu–Co in a non-equilibrium state shows very good agreements. For Al–Bi, the experimental data are either over or underestimated by a factor of 1.7, depending on which of the two thermodynamic assessments is used. For the Al-based systems, the calculated Almole fraction in the interface layer is close to the arithmetic average of the Al-mole fractions of the bulk phases.

Item URL in elib:https://elib.dlr.de/88599/
Document Type:Article
Title:A model for the prediction of liquid–liquid interfacial energies
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schmid-Fetzer, RainerTU-ClausthalUNSPECIFIED
Journal or Publication Title:Journal of Materials Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1007/s10853-014-8074-x
Page Range:pp. 3674-3680
Keywords:Butler equation Demixing Liquid alloys Liquid-Liquid interfacial energy Surface tension Thermodynamic model
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Research under Space Conditions
DLR - Research theme (Project):R - Vorhaben Materialforschung unter Mikro-g (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space > Scientific Experiments MP
Deposited By: Brillo, Dr.rer.nat. Jürgen
Deposited On:25 Mar 2014 09:43
Last Modified:06 Sep 2019 15:27

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