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Fracture Transitions at a Carbon‐Nanotube/Polymer Interface
Author(s) -
Barber A. H.,
Cohen S. R.,
Eitan A.,
Schadler L. S.,
Wagner H. D.
Publication year - 2006
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200501033
Subject(s) - materials science , carbon nanotube , polymer , nanotube , carbon nanotube metal matrix composites , composite material , fracture (geology) , matrix (chemical analysis) , nanotechnology
The interfacial strength between carbon nanotubes and a polymer matrix increases dramatically when the carbon‐nanotube surface is chemically modified. As individual nanotubes are pulled from a polymer matrix, a transition from pullout to fracture occurs (see Figure) at a critical nanotube embedded length, with chemically modified nanotubes showing a smaller critical length than unmodified ones.