Radial elasticity of multiwalled carbon nanotubes

I. Palaci, S. Fedrigo, H. Brune, C. Klinke, M. Chen, Elisa Riedo

Research output: Contribution to journalArticle

Abstract

We report an experimental and a theoretical study of the radial elasticity of multiwalled carbon nanotubes as a function of external radius. We use atomic force microscopy and apply small indentation amplitudes in order to stay in the linear elasticity regime. The number of layers for a given tube radius is inferred from transmission electron microscopy, revealing constant ratios of external to internal radii. This enables a comparison with molecular dynamics results, which also shed some light onto the applicability of Hertz theory in this context. Using this theory, we find a radial Young modulus strongly decreasing with increasing radius and reaching an asymptotic value of 30±10GPa.

Original languageEnglish (US)
Article number175502
JournalPhysical Review Letters
Volume94
Issue number17
DOIs
StatePublished - May 6 2005

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elastic properties
carbon nanotubes
radii
guy wires
indentation
modulus of elasticity
atomic force microscopy
molecular dynamics
tubes
transmission electron microscopy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Palaci, I., Fedrigo, S., Brune, H., Klinke, C., Chen, M., & Riedo, E. (2005). Radial elasticity of multiwalled carbon nanotubes. Physical Review Letters, 94(17), [175502]. https://doi.org/10.1103/PhysRevLett.94.175502

Radial elasticity of multiwalled carbon nanotubes. / Palaci, I.; Fedrigo, S.; Brune, H.; Klinke, C.; Chen, M.; Riedo, Elisa.

In: Physical Review Letters, Vol. 94, No. 17, 175502, 06.05.2005.

Research output: Contribution to journalArticle

Palaci, I, Fedrigo, S, Brune, H, Klinke, C, Chen, M & Riedo, E 2005, 'Radial elasticity of multiwalled carbon nanotubes', Physical Review Letters, vol. 94, no. 17, 175502. https://doi.org/10.1103/PhysRevLett.94.175502
Palaci, I. ; Fedrigo, S. ; Brune, H. ; Klinke, C. ; Chen, M. ; Riedo, Elisa. / Radial elasticity of multiwalled carbon nanotubes. In: Physical Review Letters. 2005 ; Vol. 94, No. 17.
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