Ultrahigh torsional stiffness and strength of boron nitride nanotubes

Jonathan Garel; Itai Leven; Chunyi Zhi; K. S. Nagapriya; Ronit Popovitz-Biro; Dmitri Golberg; Yoshio Bando; Oded Hod; Ernesto Joselevich

doi:10.1021/nl303601d

Ultrahigh torsional stiffness and strength of boron nitride nanotubes

Jonathan Garel, Itai Leven, Chunyi Zhi, K. S. Nagapriya, Ronit Popovitz-Biro, Dmitri Golberg, Yoshio Bando, Oded Hod, Ernesto Joselevich^*

^*Corresponding author for this work

School of Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

We report the experimental and theoretical study of boron nitride nanotube (BNNT) torsional mechanics. We show that BNNTs exhibit a much stronger mechanical interlayer coupling than carbon nanotubes (CNTs). This feature makes BNNTs up to 1 order of magnitude stiffer and stronger than CNTs. We attribute this interlayer locking to the faceted nature of BNNTs, arising from the polarity of the B-N bond. This property makes BNNTs superior candidates to replace CNTs in nanoelectromechanical systems (NEMS), fibers, and nanocomposites.

Original language	English
Pages (from-to)	6347-6352
Number of pages	6
Journal	Nano Letters
Volume	12
Issue number	12
DOIs	https://doi.org/10.1021/nl303601d
State	Published - 12 Dec 2012

Keywords

Nanotube
atomic force microscopy (AFM)
boron nitride (BN)
faceting
nanomechanics
torsion

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10.1021/nl303601d

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abstract = "We report the experimental and theoretical study of boron nitride nanotube (BNNT) torsional mechanics. We show that BNNTs exhibit a much stronger mechanical interlayer coupling than carbon nanotubes (CNTs). This feature makes BNNTs up to 1 order of magnitude stiffer and stronger than CNTs. We attribute this interlayer locking to the faceted nature of BNNTs, arising from the polarity of the B-N bond. This property makes BNNTs superior candidates to replace CNTs in nanoelectromechanical systems (NEMS), fibers, and nanocomposites.",

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AU - Garel, Jonathan

AU - Leven, Itai

AU - Zhi, Chunyi

AU - Nagapriya, K. S.

AU - Popovitz-Biro, Ronit

AU - Golberg, Dmitri

AU - Bando, Yoshio

AU - Hod, Oded

AU - Joselevich, Ernesto

PY - 2012/12/12

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N2 - We report the experimental and theoretical study of boron nitride nanotube (BNNT) torsional mechanics. We show that BNNTs exhibit a much stronger mechanical interlayer coupling than carbon nanotubes (CNTs). This feature makes BNNTs up to 1 order of magnitude stiffer and stronger than CNTs. We attribute this interlayer locking to the faceted nature of BNNTs, arising from the polarity of the B-N bond. This property makes BNNTs superior candidates to replace CNTs in nanoelectromechanical systems (NEMS), fibers, and nanocomposites.

AB - We report the experimental and theoretical study of boron nitride nanotube (BNNT) torsional mechanics. We show that BNNTs exhibit a much stronger mechanical interlayer coupling than carbon nanotubes (CNTs). This feature makes BNNTs up to 1 order of magnitude stiffer and stronger than CNTs. We attribute this interlayer locking to the faceted nature of BNNTs, arising from the polarity of the B-N bond. This property makes BNNTs superior candidates to replace CNTs in nanoelectromechanical systems (NEMS), fibers, and nanocomposites.

KW - Nanotube

KW - atomic force microscopy (AFM)

KW - boron nitride (BN)

KW - faceting

KW - nanomechanics

KW - torsion

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Ultrahigh torsional stiffness and strength of boron nitride nanotubes

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