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Title: Fracture of vacancy-defected carbon nanotubes and their embedded nanocomposites

Abstract

In this paper, we investigate effects of vacancy defects on 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 from those in which pristine nanotubes are embedded. It has been found that defected nanotubes with a small volume fraction cannot reinforce but instead weaken nanocomposite materials. Although a large volume fraction of defected nanotubes can slightly increase the failure stresses of nanocomposites, the failure strains of nanocomposites are always decreased.

Authors:
;  [1]
  1. Department of Mechanical and Industrial Engineering, and Center for Computer-Aided Design, University of Iowa, Iowa City, Iowa 52242 (United States)
Publication Date:
OSTI Identifier:
20788009
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics; Journal Volume: 73; Journal Issue: 11; Other Information: DOI: 10.1103/PhysRevB.73.115406; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALUMINIUM; ATOMS; CARBON; CARBON FIBERS; COMPOSITE MATERIALS; FRACTURES; NANOTUBES; REINFORCED MATERIALS; STRAINS; STRESSES; VACANCIES

Citation Formats

Xiao Shaoping, and Hou Wenyi. Fracture of vacancy-defected carbon nanotubes and their embedded nanocomposites. United States: N. p., 2006. Web. doi:10.1103/PHYSREVB.73.1.
Xiao Shaoping, & Hou Wenyi. Fracture of vacancy-defected carbon nanotubes and their embedded nanocomposites. United States. doi:10.1103/PHYSREVB.73.1.
Xiao Shaoping, and Hou Wenyi. Wed . "Fracture of vacancy-defected carbon nanotubes and their embedded nanocomposites". United States. doi:10.1103/PHYSREVB.73.1.
@article{osti_20788009,
title = {Fracture of vacancy-defected carbon nanotubes and their embedded nanocomposites},
author = {Xiao Shaoping and Hou Wenyi},
abstractNote = {In this paper, we investigate effects of vacancy defects on 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 from those in which pristine nanotubes are embedded. It has been found that defected nanotubes with a small volume fraction cannot reinforce but instead weaken nanocomposite materials. Although a large volume fraction of defected nanotubes can slightly increase the failure stresses of nanocomposites, the failure strains of nanocomposites are always decreased.},
doi = {10.1103/PHYSREVB.73.1},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 11,
volume = 73,
place = {United States},
year = {Wed Mar 15 00:00:00 EST 2006},
month = {Wed Mar 15 00:00:00 EST 2006}
}