Sopu, D. ; Albe, K. ; Ritter, Y. ; Gleiter, H. (2009)
From nanoglasses to bulk massive glasses.
In: Appl. Phys. Lett., 94 (19)
doi: 10.1063/1.3130209
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Molecular dynamics simulations are presented that provide evidence for the existence of diluted interfaces in nanoglasses, which is a class of material that can be synthesized by consolidating glassy nanoparticles. By comparing simulations of a covalently bonded Ge nanoglass and a metallic CuZr nanoglass, we show that the delocalization of the excess free volume initially located within the interfaces depends on the flow strain of the material. Our results suggest that the density distribution within a nanoglass can be controlled by the initial particle size and the annealing conditions. Therefore, nanoglasses represent an alternative route for controlling the properties of glassy materials.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2009 |
| Autor(en): | Sopu, D. ; Albe, K. ; Ritter, Y. ; Gleiter, H. |
| Art des Eintrags: | Bibliographie |
| Titel: | From nanoglasses to bulk massive glasses |
| Sprache: | Englisch |
| Publikationsjahr: | 11 Mai 2009 |
| Verlag: | American Institute of Physics |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Appl. Phys. Lett. |
| Jahrgang/Volume einer Zeitschrift: | 94 |
| (Heft-)Nummer: | 19 |
| DOI: | 10.1063/1.3130209 |
| URL / URN: | http://apl.aip.org/resource/1/applab/v94/i19/p191911_s1 |
| Kurzbeschreibung (Abstract): | Molecular dynamics simulations are presented that provide evidence for the existence of diluted interfaces in nanoglasses, which is a class of material that can be synthesized by consolidating glassy nanoparticles. By comparing simulations of a covalently bonded Ge nanoglass and a metallic CuZr nanoglass, we show that the delocalization of the excess free volume initially located within the interfaces depends on the flow strain of the material. Our results suggest that the density distribution within a nanoglass can be controlled by the initial particle size and the annealing conditions. Therefore, nanoglasses represent an alternative route for controlling the properties of glassy materials. |
| Freie Schlagworte: | annealing, copper alloys, germanium, glass structure, interface structure, metallic glasses, molecular dynamics method, nanoparticles, particle size, zirconium alloys |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung |
| Hinterlegungsdatum: | 22 Feb 2012 16:17 |
| Letzte Änderung: | 20 Sep 2018 12:46 |
| PPN: | |
| Sponsoren: | The authors acknowledge the financial support of the Deutsche Forschungsgemeinschaft �DFG� through project Grant No. Al-578-6., One of us �H.G.� was supported by Karlsruhe Institute of Technology �KIT� through a grant within the NES-program., A DAAD-PPP travel grant is also acknowledged. Computing time was made available by HHLR Frankfurt and Darmstadt as well as by CSC Julich. |
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