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Size characterization of ion tracks in PET and PTFE using SAXS

Schauries, D. and Rodriguez, M. D. and Afra, B. and Bierschenk, T. and Trautmann, C. and Mudie, S. and Kluth, P. (2015):
Size characterization of ion tracks in PET and PTFE using SAXS.
In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier Science BV, Netherlands, pp. 573-577, 365, ISSN 0168583X,
[Online-Edition: http://dx.doi.org/10.1016/j.nimb.2015.08.071],
[Article]

Abstract

Ion tracks in polyethylene terephthalate (PET) and polytetrafluoroethylene (PTFE) were created by swift heavy ion irradiation and subsequently characterized using small angle X-ray scattering (SAXS). Due to their reduced density compared to the surrounding matrix, cylindrical geometry, and parallel orientation, ion tracks produce a characteristic scattering pattern which allows quantitative analysis of their radius with high precision. For ion tracks in PET thermal annealing led to a gradual fading with a decrease in density difference yet a simultaneous increase in ion track radius. Such an increase in radius is the direct opposite compared to temperature induced ion track shrinking in inorganic materials, and suggests a very different thermal response of the polymer. (C) 2015 Elsevier B.V. All rights reserved.

Item Type: Article
Erschienen: 2015
Creators: Schauries, D. and Rodriguez, M. D. and Afra, B. and Bierschenk, T. and Trautmann, C. and Mudie, S. and Kluth, P.
Title: Size characterization of ion tracks in PET and PTFE using SAXS
Language: English
Abstract:

Ion tracks in polyethylene terephthalate (PET) and polytetrafluoroethylene (PTFE) were created by swift heavy ion irradiation and subsequently characterized using small angle X-ray scattering (SAXS). Due to their reduced density compared to the surrounding matrix, cylindrical geometry, and parallel orientation, ion tracks produce a characteristic scattering pattern which allows quantitative analysis of their radius with high precision. For ion tracks in PET thermal annealing led to a gradual fading with a decrease in density difference yet a simultaneous increase in ion track radius. Such an increase in radius is the direct opposite compared to temperature induced ion track shrinking in inorganic materials, and suggests a very different thermal response of the polymer. (C) 2015 Elsevier B.V. All rights reserved.

Journal or Publication Title: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Volume: 365
Publisher: Elsevier Science BV, Netherlands
Uncontrolled Keywords: PET, PTFE, Ion irradiation, Latent ion track, Small angle X-ray scattering
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Ion-Beam-Modified Materials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 29 Feb 2016 13:09
Official URL: http://dx.doi.org/10.1016/j.nimb.2015.08.071
Identification Number: doi:10.1016/j.nimb.2015.08.071
Funders: P.K. acknowledges the Australian Research Council for financial support.
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