2007 NSTI Nanotechnology Conference and Trade Show - Nanotech 2007 - 10th Annual

Fracture of Vacancy-defected Carbon Nanotubes and Their Embedded Composites

S.P. Xiao and W.Y. Hou
The University of Iowa, US

Keywords:
nanotube, composite, fracture, vacancy defects

Abstract:
In this paper, we investigate the effects of vacancy defects on the fracture of carbon nanotubes and carbon nanotube/aluminum composites. Our studies show that even a one-atom vacancy defect can dramatically reduce the failure stresses and strains of carbon nanotubes. Consequently, nanocomposites in which vacancy-defected nanotubes are embedded exhibit different characteristics than those in which pristine nanotubes are embedded. We also investigate the effects of randomly distributed vacancy defects on the fracture of nanotubes.

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