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Zhang, B. and Griesche, A. and Meyer, A. (2010) Diffusion in Al-Cu Melts Studied by Time-Resolved X-Ray Radiography. Physical Review Letters, 104, 035902. American Physical Society. doi: 10.1103/PhysRevLett.104.035902.
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Abstract
We use time-resolved x-ray radiography in order to monitor interdiffusion processes in situ in liquid alloys. We measure temperature and composition dependent interdiffusion coefficients (DAlCu) in Al-rich Al-Cu melts. At constant temperature, DAlCu only exhibits a weak dependence of the alloy composition. As compared to self-diffusion, interdiffusion is enhanced by a factor of about 3. Our results demonstrate that it is not possible to express interdiffusion in terms of self-diffusion and thermodynamic driving forces.
| Item URL in elib: | https://elib.dlr.de/62935/ | ||||||||||||||||
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| Document Type: | Article | ||||||||||||||||
| Title: | Diffusion in Al-Cu Melts Studied by Time-Resolved X-Ray Radiography | ||||||||||||||||
| Authors: |
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| Date: | 22 January 2010 | ||||||||||||||||
| Journal or Publication Title: | Physical Review Letters | ||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||
| Open Access: | No | ||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||
| Volume: | 104 | ||||||||||||||||
| DOI: | 10.1103/PhysRevLett.104.035902 | ||||||||||||||||
| Page Range: | 035902 | ||||||||||||||||
| Publisher: | American Physical Society | ||||||||||||||||
| Status: | Published | ||||||||||||||||
| Keywords: | PACS numbers: 66.10.cg, 61.25.Mv, 65.20.-w | ||||||||||||||||
| 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 09:11 | ||||||||||||||||
| Last Modified: | 30 May 2019 22:05 |
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