Thin boron nitride nanotubes with exceptionally high strength and toughness

Huang, Yang, Lin, Jing, Zou, Jin, Wang, Ming-Sheng, Faerstein, Konstantin, Tang, Chengchun, Bando, Yoshio and Golberg, Dmitri (2013) Thin boron nitride nanotubes with exceptionally high strength and toughness. Nanoscale, 5 11: 4840-4846. doi:10.1039/c3nr00651d

Author Huang, Yang
Lin, Jing
Zou, Jin
Wang, Ming-Sheng
Faerstein, Konstantin
Tang, Chengchun
Bando, Yoshio
Golberg, Dmitri
Title Thin boron nitride nanotubes with exceptionally high strength and toughness
Journal name Nanoscale   Check publisher's open access policy
ISSN 2040-3364
Publication date 2013-01
Sub-type Article (original research)
DOI 10.1039/c3nr00651d
Open Access Status Not Open Access
Volume 5
Issue 11
Start page 4840
End page 4846
Total pages 7
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Collection year 2014
Language eng
Abstract Bending manipulation and direct force measurements of ultrathin boron nitride nanotubes (BNNTs) were performed inside a transmission electron microscope. Our results demonstrate an obvious transition in mechanics of BNNTs when the external diameters of nanotubes are in the range of 10 nm or less. During in situ transmission electron microscopy bending tests, characteristic "hollow" ripple-like structures formed in the bent ultrathin BNNTs with diameters of sub-10 nm. This peculiar buckling/bending mode makes the ultrathin BNNTs hold very high post-buckling loads which significantly exceed their initial buckling forces. Exceptional compressive/bending strength as high as ∼1210 MPa was observed. Moreover, the analysis of reversible bending force curves of such ultrathin nanotubes indicates that they may store/adsorb strain energy at a density of ∼400 × 106 J m-3. Such nanotubes are thus very promising for strengthening and toughening of structural ceramics and may find potential applications as effective energy-absorbing materials like armor.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

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