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Temperature dependent electrical resistivity in expoxy : multiwall carbon nanotube nanocomposites

By Michael K. Njuguna, Cheng Yan, John M. Bell and Prasad K. Yarlagadda

Abstract

Thin films of expoxy nanocomposites modified by multiwall carbon nanotubes (MWCNTs) were prepared by shear mixing and spin casting. The electrical behaviour and its dependence with temperature between 243 and 353 degrees Kelvin were characterized by measuring the direct current (DC) conductivity. Depending on the fabrication process, both linear and non-linear relationships between conductivity and temperature were observed. In addition, the thermal history also played a role in dictating the conductivity. The implications of these observations for potential application of these files as strain sensors are discussed

Topics: 100708 Nanomaterials, 100712 Nanoscale Characterisation, Multi Walled Carbon Nanotubes, Epoxy, Electrical Properties, Nanocomposites, Temperature, Resistivity
Year: 2011
DOI identifier: 10.1007/978-0-85729-493-7_55
OAI identifier: oai:eprints.qut.edu.au:49256
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