Morphology dependence of radial elasticity in multiwalled boron nitride nanotubes

H. C. Chiu, S. Kim, C. Klinke, E. Riedo

Research output: Contribution to journalArticle

Abstract

We report on the measurement of the radial modulus of boron nitride nanotubes (BN-NTs) with various sizes and thicknesses. These BN-NTs are radially much stiffer than previously reported thinner and smaller BN-NTs. Here, we show the key role of the morphology of the nanotubes in determining their radial rigidity; in particular, we find that the external and internal radii, R ext and R int, have a stronger influence on the radial modulus than the nanotube's thickness. The radial modulus decreases nonlinearly with 1/R ext until reaching, for a large number of layers and a large radius, the transverse elastic modulus of bulk h-BN.

Original languageEnglish (US)
Article number103109
JournalApplied Physics Letters
Volume101
Issue number10
DOIs
StatePublished - Sep 3 2012

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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