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Deformation Micromechanics of Carbon-Nanotube/Epoxy Composites

Published online by Cambridge University Press:  01 February 2011

Robert J Young  and
Chih-Chuan Kao
Robert J Young
Affiliation:
robert.young@manchester.ac.uk, University of Manchester, School of Materials, Grosvenor Street, Manchester, Manchester, WA14 3LS, United Kingdom
Chih-Chuan Kao
Affiliation:
cckao@stud.manchester.ac.uk, University of Manchester, School of Materials, Grosvenor Street, Manchester, Greater Manchester, M1 7HS, United Kingdom
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Abstract

The micromechanical behavior of randomly-oriented epoxy/SWNT composites has been investigated by using Raman spectroscopy. In particular, the shift of the nanotube Raman G' band with composite strain has been monitored. It has been demontrated that there is a strong interface and good stress transfer between the epoxy matrix and SWNTs up to about 0.4% strain but at higher matrix strains the interface appears to break down. By comparing the data in a cyclic deformation experiment, the detailed behavior of carbon nanotube composites can be determined, such as the efficiency of stress transfer and interface breakdown.

Keywords

Raman spectroscopynanostructurecomposite
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 924: Symposium Z – Mechanics of Nanoscale Materials and Devices , 2006 , 0924-Z05-04
Copyright
Copyright © Materials Research Society 2006

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