Lang, Maik ; Toulemonde, Marcel ; Zhang, Jiaming ; Zhang, Fuxiang ; Tracy, Cameron L. ; Lian, Jie ; Wang, Zhongwu ; Weber, William J. ; Severin, Daniel ; Bender, Markus ; Trautmann, Christina ; Ewing, Rodney C. (2014)
Swift heavy ion track formation in Gd2Zr2−xTixO7 pyrochlore: Effect of electronic energy loss.
In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 336
doi: 10.1016/j.nimb.2014.06.019
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The morphology of swift heavy ion tracks in the Gd2Zr2−xTixO7 pyrochlore system has been investigated as a function of the variation in chemical composition and electronic energy loss, dE/dx, over a range of energetic ions: 58Ni, 101Ru, 129Xe, 181Ta, 197Au, 208Pb, and 238U of 11.1 MeV/u specific energy. Bright-field transmission electron microscopy, synchrotron X-ray diffraction, and Raman spectroscopy reveal an increasing degree of amorphization with increasing Ti-content and dE/dx. The size and morphology of individual ion tracks in Gd2Ti2O7 were characterized by high-resolution transmission electron microscopy revealing a core–shell structure with an outer defect-fluorite dominated shell at low dE/dx to predominantly amorphous tracks at high dE/dx. Inelastic thermal-spike calculations have been used together with atomic-scale characterization of ion tracks in Gd2Ti2O7 by high resolution transmission electron microscopy to deduce critical energy densities for the complex core–shell morphologies induced by ions of different dE/dx.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Lang, Maik ; Toulemonde, Marcel ; Zhang, Jiaming ; Zhang, Fuxiang ; Tracy, Cameron L. ; Lian, Jie ; Wang, Zhongwu ; Weber, William J. ; Severin, Daniel ; Bender, Markus ; Trautmann, Christina ; Ewing, Rodney C. |
| Art des Eintrags: | Bibliographie |
| Titel: | Swift heavy ion track formation in Gd2Zr2−xTixO7 pyrochlore: Effect of electronic energy loss |
| Sprache: | Englisch |
| Publikationsjahr: | 1 Oktober 2014 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |
| Jahrgang/Volume einer Zeitschrift: | 336 |
| DOI: | 10.1016/j.nimb.2014.06.019 |
| Kurzbeschreibung (Abstract): | The morphology of swift heavy ion tracks in the Gd2Zr2−xTixO7 pyrochlore system has been investigated as a function of the variation in chemical composition and electronic energy loss, dE/dx, over a range of energetic ions: 58Ni, 101Ru, 129Xe, 181Ta, 197Au, 208Pb, and 238U of 11.1 MeV/u specific energy. Bright-field transmission electron microscopy, synchrotron X-ray diffraction, and Raman spectroscopy reveal an increasing degree of amorphization with increasing Ti-content and dE/dx. The size and morphology of individual ion tracks in Gd2Ti2O7 were characterized by high-resolution transmission electron microscopy revealing a core–shell structure with an outer defect-fluorite dominated shell at low dE/dx to predominantly amorphous tracks at high dE/dx. Inelastic thermal-spike calculations have been used together with atomic-scale characterization of ion tracks in Gd2Ti2O7 by high resolution transmission electron microscopy to deduce critical energy densities for the complex core–shell morphologies induced by ions of different dE/dx. |
| Freie Schlagworte: | Swift heavy ions, Pyrochlore, Ceramics, Amorphization, Disordering |
| 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: | 12 Jan 2015 12:43 |
| Letzte Änderung: | 12 Jan 2015 12:43 |
| PPN: | |
| Sponsoren: | This work was supported as part of the Materials Science of Actinides, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001089 (UM, UT) , and Contract DE-AC05-00OR22725 (ORNL). , The use of CHESS beam is supported by the NSF & NIH/NIGMS via NSF award DMR-0225180., One of the authors (M.T.) is grateful to Professor Ewing at the University of Michigan for the financial support for his two-month visit. |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum