Buckling and kinking force measurements on individual multiwalled carbon nanotubes

K. Jensen, W. Mickelson, A. Kis, and A. Zettl
Phys. Rev. B 76, 195436 – Published 26 November 2007

Abstract

Using an atomic force microscope operated inside a transmission electron microscope, we have studied the forces involved in buckling and kinking an individual multiwalled carbon nanotube while observing its structure. In particular, we have measured an individual nanotube’s asymptotic critical buckling load and critical kinking load. The buckling results are well described by classical elastic theory, while the observed kinking behavior requires a more involved analysis. Repeated buckling measurements on the same nanotube indicate an extremely high degree of elasticity and set a lower bound on the nanotube’s yield strength of 1.7GPa, higher than the yield strength of steel. Plastic deformation of the nanotube was eventually observed following kinking.

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  • Received 12 August 2007

DOI:https://doi.org/10.1103/PhysRevB.76.195436

©2007 American Physical Society

Authors & Affiliations

K. Jensen, W. Mickelson, A. Kis, and A. Zettl

  • Department of Physics,and Center of Integrated Nanomechanical Systems, University of California at Berkeley, Berkeley, California 94720, USA and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

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Issue

Vol. 76, Iss. 19 — 15 November 2007

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