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Buckling characterizations of an individual multi-walled carbon nanotube: Insights from quantitative in situ transmission electron microscope nanoindentation and molecular dynamics
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10.1063/1.4817668
/content/aip/journal/apl/103/5/10.1063/1.4817668
http://aip.metastore.ingenta.com/content/aip/journal/apl/103/5/10.1063/1.4817668

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic of the nanoindentation setup inside a TEM; (b) a low-magnification TEM image of the initial position of an individual MWCNT against an indenter tip may be precisely adjusted with piezo-driven displacement (c) a high-resolution TEM image of the MWCNT.

Image of FIG. 2.
FIG. 2.

(a) Snapshots of axial compression of an individual MWCNT under nanoindentation and (b) corresponding force-displacement curve [labels (I)-(IV) denote the different deformation stages of the MWCNT under nanoindentation and correspond to the left hand-side snapshots].

Image of FIG. 3.
FIG. 3.

Variation in force with axial compressive displacement for an individual MWCNT at different strain rates.

Image of FIG. 4.
FIG. 4.

(a) Formation energy of buckling for representative CNTs as a function of various strain rates [note that labels (I)–(III) denote different buckling morphologies for the (4,4) SWCNT, (4,4)/(9,9) DWCNT, and (4,4)/(9,9)/(14,14)/(19,19) MWCNT at higher strain rate, respectively, under nanoindentation and correspond to atomistic configurations presented in (b)]. (b) Typical buckling configurations of representative CNTs. The dotted panels show the cross-sections at the kink area.

Tables

Generic image for table
Table I.

Mechanical characterization of various end fixings in the CNT. Here is the effective-length factor, the critical strain, and Young's modulus.

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/content/aip/journal/apl/103/5/10.1063/1.4817668
2013-08-02
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Buckling characterizations of an individual multi-walled carbon nanotube: Insights from quantitative in situ transmission electron microscope nanoindentation and molecular dynamics
http://aip.metastore.ingenta.com/content/aip/journal/apl/103/5/10.1063/1.4817668
10.1063/1.4817668
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