The effects of extensive pitting on the mechanical properties of carbon nanotubes

Steven L. Mielke; Sulin Zhang; Roopam Khare; Rodney S. Ruoff; Ted Belytschko; George C. Schatz

doi:10.1016/j.cplett.2007.08.033

The effects of extensive pitting on the mechanical properties of carbon nanotubes

Steven L. Mielke, Sulin Zhang, Roopam Khare, Rodney S. Ruoff, Ted Belytschko, George C. Schatz

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

26 Scopus citations

Abstract

As previously demonstrated, a single hole is sufficient to markedly reduce the fracture strength of a carbon nanotube (CNT). Herein we present calculations exploring the effects of multiple holes on the modulus, fracture strength, and fracture strain of CNTs. The modulus decreases sharply and approximately linearly as a function of the pitting density. A few holes cause a decrease in the failure strain but extensive pitting leads to higher failure strains. These results suggest that the unusually low modulus measurements and high failure strains reported in the experiments of Yu et al. [Science 287 (2000) 637] were a consequence of purification induced oxidative pitting.

Original language	English (US)
Pages (from-to)	128-132
Number of pages	5
Journal	Chemical Physics Letters
Volume	446
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2007.08.033
State	Published - Sep 26 2007

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

Access to Document

10.1016/j.cplett.2007.08.033

Cite this

@article{5ac66fb71aa445cda27d7f171ff7886a,

title = "The effects of extensive pitting on the mechanical properties of carbon nanotubes",

abstract = "As previously demonstrated, a single hole is sufficient to markedly reduce the fracture strength of a carbon nanotube (CNT). Herein we present calculations exploring the effects of multiple holes on the modulus, fracture strength, and fracture strain of CNTs. The modulus decreases sharply and approximately linearly as a function of the pitting density. A few holes cause a decrease in the failure strain but extensive pitting leads to higher failure strains. These results suggest that the unusually low modulus measurements and high failure strains reported in the experiments of Yu et al. [Science 287 (2000) 637] were a consequence of purification induced oxidative pitting.",

author = "Mielke, {Steven L.} and Sulin Zhang and Roopam Khare and Ruoff, {Rodney S.} and Ted Belytschko and Schatz, {George C.}",

note = "Funding Information: We gratefully acknowledge the grant support from the NASA University Research, Engineering, and Technology Institute on Bio Inspired Materials (BIMat) under Award No. NCC-1-02037.",

year = "2007",

month = sep,

day = "26",

doi = "10.1016/j.cplett.2007.08.033",

language = "English (US)",

volume = "446",

pages = "128--132",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

number = "1-3",

}

TY - JOUR

T1 - The effects of extensive pitting on the mechanical properties of carbon nanotubes

AU - Mielke, Steven L.

AU - Zhang, Sulin

AU - Khare, Roopam

AU - Ruoff, Rodney S.

AU - Belytschko, Ted

AU - Schatz, George C.

N1 - Funding Information: We gratefully acknowledge the grant support from the NASA University Research, Engineering, and Technology Institute on Bio Inspired Materials (BIMat) under Award No. NCC-1-02037.

PY - 2007/9/26

Y1 - 2007/9/26

N2 - As previously demonstrated, a single hole is sufficient to markedly reduce the fracture strength of a carbon nanotube (CNT). Herein we present calculations exploring the effects of multiple holes on the modulus, fracture strength, and fracture strain of CNTs. The modulus decreases sharply and approximately linearly as a function of the pitting density. A few holes cause a decrease in the failure strain but extensive pitting leads to higher failure strains. These results suggest that the unusually low modulus measurements and high failure strains reported in the experiments of Yu et al. [Science 287 (2000) 637] were a consequence of purification induced oxidative pitting.

AB - As previously demonstrated, a single hole is sufficient to markedly reduce the fracture strength of a carbon nanotube (CNT). Herein we present calculations exploring the effects of multiple holes on the modulus, fracture strength, and fracture strain of CNTs. The modulus decreases sharply and approximately linearly as a function of the pitting density. A few holes cause a decrease in the failure strain but extensive pitting leads to higher failure strains. These results suggest that the unusually low modulus measurements and high failure strains reported in the experiments of Yu et al. [Science 287 (2000) 637] were a consequence of purification induced oxidative pitting.

UR - http://www.scopus.com/inward/record.url?scp=34548508971&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548508971&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2007.08.033

DO - 10.1016/j.cplett.2007.08.033

M3 - Article

AN - SCOPUS:34548508971

SN - 0009-2614

VL - 446

SP - 128

EP - 132

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

The effects of extensive pitting on the mechanical properties of carbon nanotubes

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this