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Interdiffusion and thermodynamic forces in binary liquid alloys

Griesche, A. and Zhang, B. and Horbach, J. and Meyer, A. (2010) Interdiffusion and thermodynamic forces in binary liquid alloys. Materials Science Forum, 649, p. 481. Trans Tech Publications. DOI: 141.63.130.86-26/01/10

Full text not available from this repository.

Abstract

A novel X-ray radiography method is used to measure chemical diffusion in a longcapillary in liquid Al95Ni5 at.-%. Molecular dynamics simulations provide interdiffusion coefficients and thermodynamic factors for the whole composition range in Al-Ni. The data are compared to literature data in Sb-Sn and Ag-Sn. The relation between interdiffusion coefficient and thermodynamic forces is discussed in the context of the Darken equation. In systems with common ordering tendency (Al-Ni, Sb-Sn) the thermodynamic factor is larger than one and enhances interdiffusion. In systems with common demixing tendency (Ag-Sn) the thermodynamic factor is smaller than one and reduces interdiffusion.

Item URL in elib:https://elib.dlr.de/62958/
Document Type:Article
Title:Interdiffusion and thermodynamic forces in binary liquid alloys
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Griesche, A.Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 51170 Köln, GermanyUNSPECIFIED
Zhang, B.Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 51170 Köln, GermanyUNSPECIFIED
Horbach, J.Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 51170 Köln, GermanyUNSPECIFIED
Meyer, A.Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 51170 Köln, GermanyUNSPECIFIED
Date:January 2010
Journal or Publication Title:Materials Science Forum
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:649
DOI :141.63.130.86-26/01/10
Page Range:p. 481
Publisher:Trans Tech Publications
Status:Published
Keywords:Interdiffusion, Self Diffusion, X-ray Radiography, Al-Alloys, Darken Equation
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
DLR - Research area:Space
DLR - Program:W FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):W - Vorhaben Materialwissenschaftliche Forschung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Meyer, Prof.Dr. Andreas
Deposited On:27 Jan 2010 08:49
Last Modified:06 Sep 2019 15:22

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