Ultrahigh Torsional Stiffness and Strength of Boron Nitride Nanotubes
Ultrahigh Torsional Stiffness and Strength of Boron Nitride Nanotubes
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DOI:
10.1021/nl303601d
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发表时间:
2012-12-01
期刊:
影响因子:
10.8
通讯作者:
Joselevich, Ernesto
中科院分区:
文献类型:
--
作者:
Garel, Jonathan;Leven, Itai;Joselevich, Ernesto
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.