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Magnetic Alignment of Carbon Nanofibers in Polymer Composites

Published online by Cambridge University Press:  01 February 2011

Donglu Shi ,
Peng He ,
Jie Lian ,
Xavier Chaud ,
Eric Beaugnon ,
Lumin Wang ,
Rodney C. Ewing  and
Robert Tournier
Donglu Shi
Affiliation:
Dept. of Chemical and Materials Engineering, University of Cincinnati Cincinnati, OH 45221
Peng He
Affiliation:
Dept. of Chemical and Materials Engineering, University of Cincinnati Cincinnati, OH 45221
Jie Lian
Affiliation:
Dept. of Nuclear Engineering and Radiological Science, University of Michigan Ann Arbor, MI 48109
Xavier Chaud
Affiliation:
Consortium de Recherches pour l'Emergence de Technologies Avancées, CNRS, BP 166, F-38042 Grenoble Cedex 9, France
Eric Beaugnon
Affiliation:
Consortium de Recherches pour l'Emergence de Technologies Avancées, CNRS, BP 166, F-38042 Grenoble Cedex 9, France
Lumin Wang
Affiliation:
Dept. of Nuclear Engineering and Radiological Science, University of Michigan Ann Arbor, MI 48109
Rodney C. Ewing
Affiliation:
Dept. of Nuclear Engineering and Radiological Science, University of Michigan Ann Arbor, MI 48109
Robert Tournier
Affiliation:
Consortium de Recherches pour l'Emergence de Technologies Avancées, CNRS, BP 166, F-38042 Grenoble Cedex 9, France
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Abstract

Carbon nanofibers were well aligned in polymer composite magnetically at moderate fields up to 3 T. Due to the NiO-coating, carbon nanofibers exhibited strong magnetic moments that lead to alignment. Both TEM and SEM results showed the well-aligned nano-fibers in a polymer matrix. Mechanical testing showed a pronounced anisotropy in tensile strength in directions normal (12.1MPa) and parallel (22MPa) to the applied field, resulting from the well-aligned nanofibers in the polymer matrix. The mechanism of magnetic alignment due to coating of NiO on the nano fiber surface is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 858: Symposium HH – Functional Carbon Nanotubes , 2004 , HH5.2
Copyright
Copyright © Materials Research Society 2005

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References

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