Griesche, A. und Zhang, B. und Horbach, J. und Meyer, A. (2010) Interdiffusion and thermodynamic forces in binary liquid alloys. Materials Science Forum, 649, Seite 481. Trans Tech Publications. doi: 10.4028/www.scientific.net/MSF.649.481.
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Kurzfassung
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.
| elib-URL des Eintrags: | https://elib.dlr.de/62958/ | ||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||
| Titel: | Interdiffusion and thermodynamic forces in binary liquid alloys | ||||||||||||||||||||
| Autoren: |
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| Datum: | Januar 2010 | ||||||||||||||||||||
| Erschienen in: | Materials Science Forum | ||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||
| Band: | 649 | ||||||||||||||||||||
| DOI: | 10.4028/www.scientific.net/MSF.649.481 | ||||||||||||||||||||
| Seitenbereich: | Seite 481 | ||||||||||||||||||||
| Verlag: | Trans Tech Publications | ||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||
| Stichwörter: | Interdiffusion, Self Diffusion, X-ray Radiography, Al-Alloys, Darken Equation | ||||||||||||||||||||
| HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||||||||||
| HGF - Programm: | Weltraum (alt) | ||||||||||||||||||||
| HGF - Programmthema: | W FR - Forschung unter Weltraumbedingungen (alt) | ||||||||||||||||||||
| DLR - Schwerpunkt: | Weltraum | ||||||||||||||||||||
| DLR - Forschungsgebiet: | W FR - Forschung unter Weltraumbedingungen | ||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | W - Vorhaben Materialwissenschaftliche Forschung (alt) | ||||||||||||||||||||
| Standort: | Köln-Porz | ||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Materialphysik im Weltraum | ||||||||||||||||||||
| Hinterlegt von: | Meyer, Prof.Dr. Andreas | ||||||||||||||||||||
| Hinterlegt am: | 27 Jan 2010 08:49 | ||||||||||||||||||||
| Letzte Änderung: | 14 Mär 2024 15:34 |
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