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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.
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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/ | |||||||||||||||
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| Document Type: | Article | |||||||||||||||
| Title: | Interdiffusion and thermodynamic forces in binary liquid alloys | |||||||||||||||
| Authors: |
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| 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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