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Proton Beam Induced Modifications in Multi-Functional Polyethylene-Based Carbon Nanotubes Composites

Published online by Cambridge University Press:  01 February 2011

Merlyn. X. Pulikkathara ,
Laura Pena-Paras ,
Daneesh McIntosh ,
Mircea Chipara ,
Richard Wilkins ,
Enrique V. Barrera ,
David Dye  and
Jeffrey M. Zaleski
Merlyn. X. Pulikkathara
Affiliation:
Department of Mechanical Engineering and Material Science, Rice University, Houston, TX 77005., USA
Laura Pena-Paras
Affiliation:
Department of Mechanical Engineering and Material Science, Rice University, Houston, TX 77005., USA
Daneesh McIntosh
Affiliation:
Department of Mechanical Engineering and Material Science, Rice University, Houston, TX 77005., USA
Mircea Chipara
Affiliation:
Indiana University Cyclotron Facility, Bloomington, IN, 47408, USA.
Richard Wilkins
Affiliation:
NASA Center for Applied Radiation Research and Prairie-View A&M University, TX-77446, USA.
Enrique V. Barrera
Affiliation:
Department of Mechanical Engineering and Material Science, Rice University, Houston, TX 77005., USA
David Dye
Affiliation:
Indiana University, Chemistry Department, Bloomington, IN 47405, USA
Jeffrey M. Zaleski
Affiliation:
Indiana University, Chemistry Department, Bloomington, IN 47405, USA
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Abstract

The space applications of composites obtained by dispersing carbon nanotubes within high-density polyethylene are analyzed. Electron spin resonance investigations on proton-irradiated composites are reported. The effect of ionizing radiation of the parameters of electron spin resonance spectra is studied. A radiation-induced increase of the concentration of uncoupled electronic spins delocalized over the conducting domains of carbon nanotubes is reported. It is concluded that radiation-induced modifications in such composites are weak.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 851: Symposium NN – Materials for Space Applications , 2004 , NN6.4
Copyright
Copyright © Materials Research Society 2005

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References

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