TEM observations of buckling and fracture modes for compressed thick multiwall carbon nanotubes

Jiong Zhao; Mo Rigen He; Sheng Dai; Jia Qi Huang; Fei Wei; Jing Zhu

doi:10.1016/j.carbon.2010.09.005

TEM observations of buckling and fracture modes for compressed thick multiwall carbon nanotubes

Jiong Zhao, Mo Rigen He, Sheng Dai, Jia Qi Huang, Fei Wei, Jing Zhu^*

^*Corresponding author for this work

Tsinghua University

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

31 Citations (Scopus)

Abstract

The buckling and fracture modes of thick (diameter >20 nm) multiwall carbon nanotubes (MWCNTs) under compressive stress were examined using in situ transmission electron microscopy. The overall dynamic deformation processes of the MWCNTs as well as the force/distance curves can be obtained. The buckling behavior of MWCNTs under compression falls into two categories, the first is non-axial buckling and subsequently complex Yoshimura patterns can be induced on the compressive side of the MWCNTs. The second is axial buckling followed by catastrophic failure. We find the buckling mode of thick MWCNTs is highly dependent on the diameter and length of the MWCNTs. A continuum mechanics model is employed to determine the buckling mode criterion for the MWCNTs. Moreover, the shell by shell fracture mode and planar fracture mode of MWCNTs are directly observed in our experiments.

Original language	English
Pages (from-to)	206-213
Number of pages	8
Journal	Carbon
Volume	49
Issue number	1
DOIs	https://doi.org/10.1016/j.carbon.2010.09.005
Publication status	Published - Jan 2011
Externally published	Yes

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title = "TEM observations of buckling and fracture modes for compressed thick multiwall carbon nanotubes",

abstract = "The buckling and fracture modes of thick (diameter >20 nm) multiwall carbon nanotubes (MWCNTs) under compressive stress were examined using in situ transmission electron microscopy. The overall dynamic deformation processes of the MWCNTs as well as the force/distance curves can be obtained. The buckling behavior of MWCNTs under compression falls into two categories, the first is non-axial buckling and subsequently complex Yoshimura patterns can be induced on the compressive side of the MWCNTs. The second is axial buckling followed by catastrophic failure. We find the buckling mode of thick MWCNTs is highly dependent on the diameter and length of the MWCNTs. A continuum mechanics model is employed to determine the buckling mode criterion for the MWCNTs. Moreover, the shell by shell fracture mode and planar fracture mode of MWCNTs are directly observed in our experiments.",

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T1 - TEM observations of buckling and fracture modes for compressed thick multiwall carbon nanotubes

AU - Zhao, Jiong

AU - He, Mo Rigen

AU - Dai, Sheng

AU - Huang, Jia Qi

AU - Wei, Fei

AU - Zhu, Jing

PY - 2011/1

Y1 - 2011/1

N2 - The buckling and fracture modes of thick (diameter >20 nm) multiwall carbon nanotubes (MWCNTs) under compressive stress were examined using in situ transmission electron microscopy. The overall dynamic deformation processes of the MWCNTs as well as the force/distance curves can be obtained. The buckling behavior of MWCNTs under compression falls into two categories, the first is non-axial buckling and subsequently complex Yoshimura patterns can be induced on the compressive side of the MWCNTs. The second is axial buckling followed by catastrophic failure. We find the buckling mode of thick MWCNTs is highly dependent on the diameter and length of the MWCNTs. A continuum mechanics model is employed to determine the buckling mode criterion for the MWCNTs. Moreover, the shell by shell fracture mode and planar fracture mode of MWCNTs are directly observed in our experiments.

AB - The buckling and fracture modes of thick (diameter >20 nm) multiwall carbon nanotubes (MWCNTs) under compressive stress were examined using in situ transmission electron microscopy. The overall dynamic deformation processes of the MWCNTs as well as the force/distance curves can be obtained. The buckling behavior of MWCNTs under compression falls into two categories, the first is non-axial buckling and subsequently complex Yoshimura patterns can be induced on the compressive side of the MWCNTs. The second is axial buckling followed by catastrophic failure. We find the buckling mode of thick MWCNTs is highly dependent on the diameter and length of the MWCNTs. A continuum mechanics model is employed to determine the buckling mode criterion for the MWCNTs. Moreover, the shell by shell fracture mode and planar fracture mode of MWCNTs are directly observed in our experiments.

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TEM observations of buckling and fracture modes for compressed thick multiwall carbon nanotubes

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