Delgado, A. O. ; Rizzutto, M. A. ; Severin, D. ; Seidl, T. ; Neumann, R. ; Trautmann, C. (2012)
Latent track radius of PTFE irradiated with high energy ion beam.
In: Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 273
doi: 10.1016/j.nimb.2011.07.037
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
PTFE foils were irradiated with different ion beams (Xe, Au and U) with energies up to 1.5 GeV and fluences between 1 × 108 and 1 × 1013 ions/cm2 at room temperature. The induced modifications in the polymer were analyzed by FTIR, UV–Vis spectroscopy, and XRD. In the FTIR spectra, the CF2 degradation accompanied by the formation of CF3 terminal and side groups were observed. In the UV–Vis spectra, the observed increase in the absorption at UV wavelengths is an indication of polymer carbonization. From XRD, the amorphization of the material was evidenced by the decrease in the intensity of the main diffraction peak. An exponential fit of the intensity of the IR absorption peaks resulted in the following values: 2.9 ± 0.8; 4.5 ± 0.9 and 5.6 ± 0.8 nm for the latent track radius after irradiation with Xe, Au and U beams, respectively.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2012 |
| Autor(en): | Delgado, A. O. ; Rizzutto, M. A. ; Severin, D. ; Seidl, T. ; Neumann, R. ; Trautmann, C. |
| Art des Eintrags: | Bibliographie |
| Titel: | Latent track radius of PTFE irradiated with high energy ion beam |
| Sprache: | Englisch |
| Publikationsjahr: | 15 Februar 2012 |
| Verlag: | Elsevier |
| 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: | 273 |
| DOI: | 10.1016/j.nimb.2011.07.037 |
| Kurzbeschreibung (Abstract): | PTFE foils were irradiated with different ion beams (Xe, Au and U) with energies up to 1.5 GeV and fluences between 1 × 108 and 1 × 1013 ions/cm2 at room temperature. The induced modifications in the polymer were analyzed by FTIR, UV–Vis spectroscopy, and XRD. In the FTIR spectra, the CF2 degradation accompanied by the formation of CF3 terminal and side groups were observed. In the UV–Vis spectra, the observed increase in the absorption at UV wavelengths is an indication of polymer carbonization. From XRD, the amorphization of the material was evidenced by the decrease in the intensity of the main diffraction peak. An exponential fit of the intensity of the IR absorption peaks resulted in the following values: 2.9 ± 0.8; 4.5 ± 0.9 and 5.6 ± 0.8 nm for the latent track radius after irradiation with Xe, Au and U beams, respectively. |
| Freie Schlagworte: | PTFE, heavy ions irradiation, polymer damage, latent ion tracks |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien |
| Hinterlegungsdatum: | 18 Mär 2024 13:25 |
| Letzte Änderung: | 18 Mär 2024 13:25 |
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