Volume 79, Number 4, August 2007
|Number of page(s)||5|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||25 July 2007|
X-ray microdiffraction study of single-walled carbon nanotube alignment across a fibre
Laboratoire de Physique des Solides, UMR CNRS 8502, Bât 510, Université Paris Sud - 91405 Orsay, France
2 European Synchrotron Radiation Facility (ESRF) - 6 rue Jules Horowitz, 38043 Grenoble, France
3 Centre de Recherche Paul Pascal, CNRS, Université Bordeaux I - Avenue Schweitzer, 33600 Pessac, France
Accepted: 29 June 2007
Nanotube alignment has been found to be one of the key parameters to explain the mechanical properties of carbon nanotube fibres. However, the question of the homogeneity of the alignment across the fibre diameter is still open. This letter reports on the first microdiffraction study of the alignment of nanotubes across a fibre, the diameter of which is about 20 μm. We show that the high flux of synchrotron radiation makes the analysis of nanotube alignment from the skin to the core of the fibre possible. The present result opens the way for further micrometer scale analyses of nanotube-based materials by X-ray scattering.
PACS: 61.46.Fg – Nanotubes / 61.10.Eq – X-ray scattering (including small-angle scattering) / 41.60.Ap – Synchrotron radiation
© Europhysics Letters Association, 2007
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