Mayr, S. G. ; Ashkenazy, Y. ; Albe, K. ; Averback, R. S. (2003)
Mechanisms of radiation-induced viscous flow: Role of point defects.
In: Phys. Rev. Lett., 90 (5)
doi: 10.1103/PhysRevLett.90.055505
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Mechanisms of radiation-induced flow in amorphous solids have been investigated using molecular dynamics computer simulations. It is shown for a model glass system, CuTi, that the radiation-induced flow is independent of recoil energy between 100 eV and 10 keV when compared on the basis of defect production and that there is a threshold energy for flow of approximate to10 eV. Injection of interstitial- and vacancylike defects induces the same amount of flow as the recoil events, indicating that point-defect-like entities mediate the flow process, even at 10 K. Comparisons of these results with experiments and thermal spike models are made.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2003 |
| Autor(en): | Mayr, S. G. ; Ashkenazy, Y. ; Albe, K. ; Averback, R. S. |
| Art des Eintrags: | Bibliographie |
| Titel: | Mechanisms of radiation-induced viscous flow: Role of point defects |
| Sprache: | Englisch |
| Publikationsjahr: | 6 Februar 2003 |
| Verlag: | American Physical Society |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Phys. Rev. Lett. |
| Jahrgang/Volume einer Zeitschrift: | 90 |
| (Heft-)Nummer: | 5 |
| DOI: | 10.1103/PhysRevLett.90.055505 |
| URL / URN: | http://prl.aps.org/abstract/PRL/v90/i5/e055505 |
| Kurzbeschreibung (Abstract): | Mechanisms of radiation-induced flow in amorphous solids have been investigated using molecular dynamics computer simulations. It is shown for a model glass system, CuTi, that the radiation-induced flow is independent of recoil energy between 100 eV and 10 keV when compared on the basis of defect production and that there is a threshold energy for flow of approximate to10 eV. Injection of interstitial- and vacancylike defects induces the same amount of flow as the recoil events, indicating that point-defect-like entities mediate the flow process, even at 10 K. Comparisons of these results with experiments and thermal spike models are made. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung |
| Hinterlegungsdatum: | 28 Feb 2012 14:49 |
| Letzte Änderung: | 06 Jul 2018 10:51 |
| PPN: | |
| Sponsoren: | The research was supported by the U.S. Department of Energy, Division of Materials Science, under Grant No. DEFG02-91-ER45439, and through the University of California under subcontract B341494. |
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