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A method to evaluate the tensile strength and stress-strain relationship of carbon nanofibers, carbon nanotubes, and C-chains.

Authors
  • Márquez-Lucero, Alfredo
  • Gomez, Jorge A
  • Caudillo, Román
  • Miki-Yoshida, Mario
  • José-Yacaman, Miguel
Type
Published Article
Journal
Small
Publisher
Wiley (John Wiley & Sons)
Publication Date
Jun 01, 2005
Volume
1
Issue
6
Pages
640–644
Identifiers
PMID: 17193500
Source
Medline
License
Unknown

Abstract

A method is introduced to assess the tensile strength of carbon nanofibers, carbon nanotubes (CNTs), and linear chains of carbon atoms (C-chains) obtained from thin amorphous carbon films by electron irradiation. Transmission electron microscopy images show that the nanofibers undergo a radiation-induced necking process, characterized by CNT formation and often followed by the formation of a C-chain. Simulations of the necking process are carried out to determine the tensile stress supported by the nanofiber and CNT neck.

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