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High Performance Fibres from ‘Dog Bone’ Carbon Nanotubes


  • This work was supported by CANAPE European framework (NMP4-CT-2004-500096), Royal Academy of Engineering, EPSRC and Thomas Swan Ltd. Professor Robert Young, University of Manchester, is acknowledged for orientation measurements with Raman. Juan Vilatela is thanked for performing the knot tests. Supporting Information is available online from Wiley InterScience or from the authors.


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The direct spinning of carbon nanotubes yields fibres with distinctly encouraging mechanical properties. While the best strength (2.2 N/tex) and stiffness (160 N/tex) promise competition for established carbon fibres, the maximum energy absorbed at fracture (46 J/g) is somewhat higher. The fibres consist of very long double-walled nanotubes of surprisingly large diameter (in the 5–10 nm range), which collapse to give a dog-bone cross section.

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