Viscoelasticity and high buckling stress of dense carbon nanotube brushes

Siddhartha Pathak; Z. Goknur Cambaz; Surya R. Kalidindi; J. Gregory Swadener; Yury Gogotsi

doi:10.1016/j.carbon.2009.03.042

Viscoelasticity and high buckling stress of dense carbon nanotube brushes

Siddhartha Pathak, Z. Goknur Cambaz, Surya R. Kalidindi, J. Gregory Swadener, Yury Gogotsi

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

Abstract

We report on the mechanical behavior of a dense brush of small-diameter (1–3 nm) non-catalytic multiwall (2–4 walls) carbon nanotubes (CNTs), with ~10 times higher density than CNT brushes produced by other methods. Under compression with spherical indenters of different radii, these highly dense CNT brushes exhibit a higher modulus (~17–20 GPa) and orders of magnitude higher resistance to buckling than vapor phase deposited CNT brushes or carbon walls. We also demonstrate the viscoelastic behavior, caused by the increased influence of the van der Waals’ forces in these highly dense CNT brushes, showing their promise for energy-absorbing coatings.

Original language	English
Pages (from-to)	1969-1976
Number of pages	8
Journal	Carbon
Volume	47
Issue number	8
DOIs	https://doi.org/10.1016/j.carbon.2009.03.042
Publication status	Published - Jul 2009

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Carbon. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published Pathak, Siddhartha; Cambaz, Z. Goknur; Kalidindi, Surya R.; Swadener, J. Gregory and Gogotsi, Yury. Viscoelasticity and high buckling stress of dense carbon nanotube brushes. Carbon, 47, 8 (2009). DOI: 10.1016/j.carbon.2009.03.042

Keywords

non-catalytic multiwall
carbon nanotubes
CNT brushes
spherical indenters of different radii
viscoelastic behavior
van der Waals’ forces

Access to Document

10.1016/j.carbon.2009.03.042

Pathak_2009-Viscoelasticity_and_high_buckling_stress_of_dense_CNT_brushes.pdf
NOTICE: this is the author’s version of a work that was accepted for publication in Carbon. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published Pathak, Siddhartha; Cambaz, Z. Goknur; Kalidindi, Surya R.; Swadener, J. Gregory and Gogotsi, Yury. Viscoelasticity and high buckling stress of dense carbon nanotube brushes. Carbon, 47, 8 (2009). DOI: 10.1016/j.carbon.2009.03.042

http://dx.doi.org/10.1016/j.carbon.2009.03.042

Cite this

@article{e67550ee45e24663819022fb876c7393,

title = "Viscoelasticity and high buckling stress of dense carbon nanotube brushes",

abstract = "We report on the mechanical behavior of a dense brush of small-diameter (1–3 nm) non-catalytic multiwall (2–4 walls) carbon nanotubes (CNTs), with ~10 times higher density than CNT brushes produced by other methods. Under compression with spherical indenters of different radii, these highly dense CNT brushes exhibit a higher modulus (~17–20 GPa) and orders of magnitude higher resistance to buckling than vapor phase deposited CNT brushes or carbon walls. We also demonstrate the viscoelastic behavior, caused by the increased influence of the van der Waals{\textquoteright} forces in these highly dense CNT brushes, showing their promise for energy-absorbing coatings.",

keywords = "non-catalytic multiwall, carbon nanotubes, CNT brushes, spherical indenters of different radii, viscoelastic behavior, van der Waals{\textquoteright} forces",

author = "Siddhartha Pathak and Cambaz, {Z. Goknur} and Kalidindi, {Surya R.} and Swadener, {J. Gregory} and Yury Gogotsi",

note = "NOTICE: this is the author{\textquoteright}s version of a work that was accepted for publication in Carbon. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published Pathak, Siddhartha; Cambaz, Z. Goknur; Kalidindi, Surya R.; Swadener, J. Gregory and Gogotsi, Yury. Viscoelasticity and high buckling stress of dense carbon nanotube brushes. Carbon, 47, 8 (2009). DOI: 10.1016/j.carbon.2009.03.042",

year = "2009",

month = jul,

doi = "10.1016/j.carbon.2009.03.042",

language = "English",

volume = "47",

pages = "1969--1976",

journal = "Carbon",

issn = "0008-6223",

publisher = "Elsevier",

number = "8",

}

TY - JOUR

T1 - Viscoelasticity and high buckling stress of dense carbon nanotube brushes

AU - Pathak, Siddhartha

AU - Cambaz, Z. Goknur

AU - Kalidindi, Surya R.

AU - Swadener, J. Gregory

AU - Gogotsi, Yury

N1 - NOTICE: this is the author’s version of a work that was accepted for publication in Carbon. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published Pathak, Siddhartha; Cambaz, Z. Goknur; Kalidindi, Surya R.; Swadener, J. Gregory and Gogotsi, Yury. Viscoelasticity and high buckling stress of dense carbon nanotube brushes. Carbon, 47, 8 (2009). DOI: 10.1016/j.carbon.2009.03.042

PY - 2009/7

Y1 - 2009/7

N2 - We report on the mechanical behavior of a dense brush of small-diameter (1–3 nm) non-catalytic multiwall (2–4 walls) carbon nanotubes (CNTs), with ~10 times higher density than CNT brushes produced by other methods. Under compression with spherical indenters of different radii, these highly dense CNT brushes exhibit a higher modulus (~17–20 GPa) and orders of magnitude higher resistance to buckling than vapor phase deposited CNT brushes or carbon walls. We also demonstrate the viscoelastic behavior, caused by the increased influence of the van der Waals’ forces in these highly dense CNT brushes, showing their promise for energy-absorbing coatings.

AB - We report on the mechanical behavior of a dense brush of small-diameter (1–3 nm) non-catalytic multiwall (2–4 walls) carbon nanotubes (CNTs), with ~10 times higher density than CNT brushes produced by other methods. Under compression with spherical indenters of different radii, these highly dense CNT brushes exhibit a higher modulus (~17–20 GPa) and orders of magnitude higher resistance to buckling than vapor phase deposited CNT brushes or carbon walls. We also demonstrate the viscoelastic behavior, caused by the increased influence of the van der Waals’ forces in these highly dense CNT brushes, showing their promise for energy-absorbing coatings.

KW - non-catalytic multiwall

KW - carbon nanotubes

KW - CNT brushes

KW - spherical indenters of different radii

KW - viscoelastic behavior

KW - van der Waals’ forces

UR - http://www.scopus.com/inward/record.url?scp=67349104836&partnerID=8YFLogxK

U2 - 10.1016/j.carbon.2009.03.042

DO - 10.1016/j.carbon.2009.03.042

M3 - Article

SN - 0008-6223

VL - 47

SP - 1969

EP - 1976

JO - Carbon

JF - Carbon

IS - 8

ER -

Viscoelasticity and high buckling stress of dense carbon nanotube brushes

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this