Schauries, D. ; Leino, A. A. ; Afra, B. ; Rodriguez, M. D. ; Djurabekova, F. ; Nordlund, K. ; Kirby, N. ; Trautmann, C. ; Kluth, P. (2015)
Orientation dependent annealing kinetics of ion tracks in c-SiO2.
In: Journal of Applied Physics, 118 (22)
doi: 10.1063/1.4936601
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The structure and thermal response of amorphous ion tracks formed along the [11 (2) over bar0], [10 (1) over bar0], and [0001]-directions in crystalline quartz have been investigated using small angle x-ray scattering. The radii of the ion tracks vary by about 5% (0.3 nm) for tracks along different crystallographic directions. Molecular dynamics simulations reproduce this anisotropy along the [10 (1) over bar0] and [0001] directions and suggest that differences in thermal conductivity along these directions are partly responsible for this observation. Using in situ annealing, tracks along the [10 (1) over bar0 and [0001] directions were shown to recrystallize during thermal annealing around 960-1020 degrees C with activations energies around 6 eV, while those along the [11 (2) over bar0]-direction already disappeared at 640 degrees C with a significantly lower activation energy around 3-4 eV. (C) 2015 AIP Publishing LLC.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Schauries, D. ; Leino, A. A. ; Afra, B. ; Rodriguez, M. D. ; Djurabekova, F. ; Nordlund, K. ; Kirby, N. ; Trautmann, C. ; Kluth, P. |
| Art des Eintrags: | Bibliographie |
| Titel: | Orientation dependent annealing kinetics of ion tracks in c-SiO2 |
| Sprache: | Englisch |
| Publikationsjahr: | 14 Dezember 2015 |
| Verlag: | AIP Publishing LLC |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Applied Physics |
| Jahrgang/Volume einer Zeitschrift: | 118 |
| (Heft-)Nummer: | 22 |
| DOI: | 10.1063/1.4936601 |
| Kurzbeschreibung (Abstract): | The structure and thermal response of amorphous ion tracks formed along the [11 (2) over bar0], [10 (1) over bar0], and [0001]-directions in crystalline quartz have been investigated using small angle x-ray scattering. The radii of the ion tracks vary by about 5% (0.3 nm) for tracks along different crystallographic directions. Molecular dynamics simulations reproduce this anisotropy along the [10 (1) over bar0] and [0001] directions and suggest that differences in thermal conductivity along these directions are partly responsible for this observation. Using in situ annealing, tracks along the [10 (1) over bar0 and [0001] directions were shown to recrystallize during thermal annealing around 960-1020 degrees C with activations energies around 6 eV, while those along the [11 (2) over bar0]-direction already disappeared at 640 degrees C with a significantly lower activation energy around 3-4 eV. (C) 2015 AIP Publishing LLC. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 29 Feb 2016 12:34 |
| Letzte Änderung: | 29 Feb 2016 12:34 |
| PPN: | |
| Sponsoren: | P.K. acknowledges the Australian Research Council for financial support. |
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