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Brillo, J. und Brooks, R. und Egry, Ivan und Quested, P. (2008) Density and viscosity of liquid ternary Al-Cu-Ag alloys. High Temperatures-High Pressures, 37, Seiten 371-381.
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Kurzfassung
In this paper, we report on density and viscosity measurements of liquid Al-Cu-Ag alloys. The densities have been measured on electromagnetically levitated samples by a shadowgraph technique. The viscosities were obtained by means of an oscillating cup viscometer where a suspended crucible containing the liquid sample performs torsinal oscillations damped by the viscosity of the liquid. It was found that the density is a linear function of temperature for all investigated compositions. The concentration dependence of the molar volume exhibits a negative excess volume. The measured viscosities can be describes as a function of temperature by an Arrhenius law, yielding an activation energy for the viscous flow. The viscosity and its apparent activation energy exhibit both a maximum at a certain composition.
| elib-URL des Eintrags: | https://elib.dlr.de/57900/ | ||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||
| Titel: | Density and viscosity of liquid ternary Al-Cu-Ag alloys | ||||||||||||||||||||
| Autoren: |
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| Datum: | 2008 | ||||||||||||||||||||
| Erschienen in: | High Temperatures-High Pressures | ||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||
| In ISI Web of Science: | Ja | ||||||||||||||||||||
| Band: | 37 | ||||||||||||||||||||
| Seitenbereich: | Seiten 371-381 | ||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||
| Stichwörter: | Al-Cu-Ag alloys, Density, Electromagentic levitation, Excess volume, Viscosity, Oscillating cup viscometry | ||||||||||||||||||||
| 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 > Institut für Raumsimulation > Zentrum für die Erstarrung unterkühlter Schmelzen (ZEUS) | ||||||||||||||||||||
| Hinterlegt von: | Parpart, Ingeborg | ||||||||||||||||||||
| Hinterlegt am: | 26 Jan 2009 | ||||||||||||||||||||
| Letzte Änderung: | 21 Jun 2010 14:49 |
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