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Gao, J. R. und Volkmann, T. und Yang, S. und Reutzel, S. und Herlach, D. M. und Song, X. P. (2007) Crystallization of Nd<sub>2</sub>Fe<sub>17</sub>B<sub>x</sub> from its stoichiometric melt composition. Journal of Alloys and Compounds, 433, Seiten 356-362. Elsevier. doi: 10.1016/j.jallcom.2006.06.090.
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Kurzfassung
Containerless solidification of gas-atomized Nd<sub>10</sub>Fe<sub>85</sub>B<sub>5</sub> melt droplets was carried out using the drop tube technique. The phase constituents and microstructure of the solidified samples were investigated by means of powder X-ray diffraction analysis, thermomagnetic analysis, and scanning electron microscopy. Besides <font face="symbol">g</font>-Fe and Nd<sub>2</sub>Fe<sub>14</sub>B, non-equilibrium phases such as Nd<sub>2</sub>Fe<sub>17</sub>B<sub>x</sub>, <font face="symbol">e</font>-Nd, and Nd<sub>1.1</sub>Fe<sub>4</sub>B<sub>4</sub> were identified. The microstructure of the samples was categorized into three types, including a quasi-single phase one that consists mainly of Nd<sub>2</sub>Fe<sub>17</sub>B<sub>x</sub> dendrites. The lattice parameters and Curie temperature of Nd<sub>2</sub>Fe<sub>17</sub>B<sub>x</sub> were determined, and compared with those of the same type phase crystallized in Nd-rich Nd-Fe-B melt compositions. The results were discussed with respect to the stoichiometry, formation as well as potential applications of Nd<sub>2</sub>Fe<sub>17</sub>B<sub>x</sub>.
| elib-URL des Eintrags: | https://elib.dlr.de/44067/ | ||||||||||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||
| Titel: | Crystallization of Nd<sub>2</sub>Fe<sub>17</sub>B<sub>x</sub> from its stoichiometric melt composition | ||||||||||||||||||||||||||||
| Autoren: |
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| Datum: | 2007 | ||||||||||||||||||||||||||||
| Erschienen in: | Journal of Alloys and Compounds | ||||||||||||||||||||||||||||
| Open Access: | Ja | ||||||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||
| Band: | 433 | ||||||||||||||||||||||||||||
| DOI: | 10.1016/j.jallcom.2006.06.090 | ||||||||||||||||||||||||||||
| Seitenbereich: | Seiten 356-362 | ||||||||||||||||||||||||||||
| Verlag: | Elsevier | ||||||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||||||
| Stichwörter: | Unterkühlung von Materialien | ||||||||||||||||||||||||||||
| 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 Materialforschung unter Mikro-g (alt) | ||||||||||||||||||||||||||||
| Standort: | Köln-Porz | ||||||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Materialphysik im Weltraum > Institut für Raumsimulation > Zentrum für die Erstarrung unterkühlter Schmelzen (ZEUS) | ||||||||||||||||||||||||||||
| Hinterlegt von: | Reutzel, Dr.rer.nat. Sven | ||||||||||||||||||||||||||||
| Hinterlegt am: | 08 Jan 2008 | ||||||||||||||||||||||||||||
| Letzte Änderung: | 31 Jul 2019 19:17 |
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