Going for strength: The development of carbon nanotube fibres and fibre composites

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• Alan Windle, Department of Materials Science, University of Cambridge
• Thursday 12 February 2009, 16:00-17:00
• Mott Seminar Room, Cavendish Laboratory, Department of Physics.

If you have a question about this talk, please contact Stephen Walley.

For strength per unit weight, individual graphene sheets are unrivalled. Measurements on single sheets agree with calculations to give values of the order of 55 GPa/SG for strength and 455 GPa/SG for stiffness. While the latter might be seen in graphite, the former will not because of the inherent brittleness of the material. Carbon nanotubes provide a unique opportunity of aligning and positioning graphene layers so that a sensible fraction of the strength may be realised. Strategies for making carbon nanotube fibres and the relationship between structure and mechanical properties will be described, as will their incorporation into composites.

This talk is part of the Physics and Chemistry of Solids Group series.

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