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SUMMARY:Going for strength: The development of carbon nanotube fibres and 
 fibre composites - Alan Windle\, Department of Materials Science\, Univers
 ity of Cambridge
DTSTART:20090212T160000Z
DTEND:20090212T170000Z
UID:TALK16443@talks.cam.ac.uk
CONTACT:Stephen Walley
DESCRIPTION:For strength per unit weight\, individual graphene sheets are 
 unrivalled.   Measurements on single sheets agree with calculations to giv
 e values of the order of 55 GPa/SG for strength and 455 GPa/SG for stiffne
 ss.  While the latter might be seen in graphite\, the former will not beca
 use 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 maki
 ng carbon nanotube fibres and the relationship between structure and mecha
 nical properties will be described\, as will their incorporation into comp
 osites.
LOCATION:Mott Seminar Room\, Cavendish Laboratory\, Department of Physics
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