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Vojtech, D. und Holecek, S. und Barta, C. und Barta, C. jr. und Otto, G. und Görler, G. und Wittmann, K. und Röstel, R. (1997) The Influence of Convection on Non-Equilibrium Solidification of Silver-Germanium Alloys. In: 9th Proceedings of the International Metallurgy and Materials Congress, Volume II, Seiten 1525-1530. 9th Intern. Metallurgy and Materials Congress, June 11-15, 1997, Istanbul.
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Kurzfassung
The hypo- und hypereutectic alloys of typical anomalous silver-germanium eutectic system have been solidified under both terrestrial and space conditions with the goal to create distinct convective flow levels in system. A special arangement during crystallization has been used to decrease the influence of oxide particles in the melt on nucleation process. The convection has been found to affect strongly nucleation and growth processes of both primary crystals and eutectic. Significant differences hav e been observed in morphology and in solute segregation in microstructural components. The obtained results show much greater departure of solidifying system from equilibrium in the limited mobility of components (limited convection). In this way, the space conditions provide valuable environment to understand processes between equilibrium solidification of alloys and their transition into glassy state.
| elib-URL des Eintrags: | https://elib.dlr.de/15216/ | ||||||||||||||||||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Paper) | ||||||||||||||||||||||||||||||||||||
| Zusätzliche Informationen: | LIDO-Berichtsjahr=1999, monograph_id=33, | ||||||||||||||||||||||||||||||||||||
| Titel: | The Influence of Convection on Non-Equilibrium Solidification of Silver-Germanium Alloys | ||||||||||||||||||||||||||||||||||||
| Autoren: |
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| Datum: | 1997 | ||||||||||||||||||||||||||||||||||||
| Erschienen in: | 9th Proceedings of the International Metallurgy and Materials Congress | ||||||||||||||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||||||||||
| Band: | Volume II | ||||||||||||||||||||||||||||||||||||
| Seitenbereich: | Seiten 1525-1530 | ||||||||||||||||||||||||||||||||||||
| Herausgeber: |
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| Status: | veröffentlicht | ||||||||||||||||||||||||||||||||||||
| Stichwörter: | Solidification, Eutectic Solidification, Convection, Microgravity, Silver, Germanium | ||||||||||||||||||||||||||||||||||||
| Veranstaltungstitel: | 9th Intern. Metallurgy and Materials Congress, June 11-15, 1997, Istanbul | ||||||||||||||||||||||||||||||||||||
| Veranstalter : | Union of Chambers of Turkish Engineers and Architects | ||||||||||||||||||||||||||||||||||||
| HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||||||||||||||||||||||||||
| HGF - Programm: | Weltraum (alt) | ||||||||||||||||||||||||||||||||||||
| HGF - Programmthema: | W EO - Erdbeobachtung | ||||||||||||||||||||||||||||||||||||
| DLR - Schwerpunkt: | Weltraum | ||||||||||||||||||||||||||||||||||||
| DLR - Forschungsgebiet: | W EO - Erdbeobachtung | ||||||||||||||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | NICHT SPEZIFIZIERT | ||||||||||||||||||||||||||||||||||||
| Standort: | Köln-Porz | ||||||||||||||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Materialphysik im Weltraum > Institut für Raumsimulation | ||||||||||||||||||||||||||||||||||||
| Hinterlegt von: | DLR-Beauftragter, elib | ||||||||||||||||||||||||||||||||||||
| Hinterlegt am: | 16 Sep 2005 | ||||||||||||||||||||||||||||||||||||
| Letzte Änderung: | 14 Jan 2010 13:32 |
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