Flege, Stefan ; Hahn, Horst ; Averback, R. S. (2004)
Thermal and radiation-enhanced diffusion in the bulk metallic glass Ni23Zr62Al15.
In: Physical Review B, 69 (1)
doi: 10.1103/PhysRevB.69.014303
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The temperature dependence of tracer diffusion in the three-component system NiZrAl was measured. For the composition Ni23Zr62Al15, it was possible to measure diffusion coefficients below and above the glass transition temperature. Similar to the binary metallic glass NiZr, the diffusion coefficient was strongly dependent on the atomic size of the tracer, varying by two orders of magnitude. The results are suggestive of a collective diffusion mechanism in bulk metallic glasses. Radiation-enhanced diffusion was also measured in this alloy and compared with measurements of radiation-induced viscous flow on similar alloys.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2004 |
| Autor(en): | Flege, Stefan ; Hahn, Horst ; Averback, R. S. |
| Art des Eintrags: | Bibliographie |
| Titel: | Thermal and radiation-enhanced diffusion in the bulk metallic glass Ni23Zr62Al15 |
| Sprache: | Englisch |
| Publikationsjahr: | 29 Januar 2004 |
| Verlag: | American Physical Society |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review B |
| Jahrgang/Volume einer Zeitschrift: | 69 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1103/PhysRevB.69.014303 |
| Kurzbeschreibung (Abstract): | The temperature dependence of tracer diffusion in the three-component system NiZrAl was measured. For the composition Ni23Zr62Al15, it was possible to measure diffusion coefficients below and above the glass transition temperature. Similar to the binary metallic glass NiZr, the diffusion coefficient was strongly dependent on the atomic size of the tracer, varying by two orders of magnitude. The results are suggestive of a collective diffusion mechanism in bulk metallic glasses. Radiation-enhanced diffusion was also measured in this alloy and compared with measurements of radiation-induced viscous flow on similar alloys. |
| Zusätzliche Informationen: | Zeichendarst. im Sacht. teilw. nicht vorlagegemäß wiedergegeben |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien |
| Hinterlegungsdatum: | 20 Nov 2008 08:19 |
| Letzte Änderung: | 20 Mai 2020 16:08 |
| PPN: | |
| Sponsoren: | This work was supported by the DFG Schwerpunkt-Programm ‘‘Unterku¨hlte Metallschmelzen: Phasenselektion und Glasbildung’’ and in part by the Department of Energy, Basic Energy Sciences under Grant No. DEFG02-91-ER45439. |
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