Ultrahigh strength and stiffness in cross-linked hierarchical carbon nanotube bundles

T. Filleter, R. Bernal, S. Li, Horacio Dante Espinosa*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

134 Scopus citations

Abstract

Electron irradiation induced covalent cross-linking at multiple length scales within double-walled nanotube bundles is demonstrated to lead to ultrahigh effective strength and stiffness. In situ transmission electron microscopy tensile testing reveals both order of magnitude enhancements in the mechanical properties as well as distinct failure mechanisms of cross-linked versus un-crosslinked bundles.

Original languageEnglish (US)
Pages (from-to)2855-2860
Number of pages6
JournalAdvanced Materials
Volume23
Issue number25
DOIs
StatePublished - Jul 5 2011

Keywords

  • carbon nanotubes
  • hierarchical materials
  • in situ TEM
  • nanocomposites

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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