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Simultaneous measurement of Young’s and shear moduli of multiwalled carbon nanotubes using atomic force microscopy

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4 Author(s)
Guhados, Ganesh ; Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada ; Wan, Wankei ; Xueliang Sun ; Hutter, J.L.

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Carbon nanotubes (CNTs) are widely hailed as the strongest material known to mankind. However, experimental measurements—and even theoretical estimates—of their mechanical properties span a wide range. We present an atomic force microscopy study of multiwalled CNTs, which, unlike previous such studies, measures the tube compliance as a function of position along suspended tubes. This permits a simultaneous determination of the effective Young’s and shear moduli of CNTs: 350±110 and 1.4±0.3 GPa, respectively.

Published in:

Journal of Applied Physics  (Volume:101 ,  Issue: 3 )

Date of Publication:

Feb 2007

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