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Temperature dependent electrical resistivity in expoxy : multiwall carbon nanotube nanocomposites

Njuguna, Michael K., Yan, Cheng, Bell, John M., & Yarlagadda, Prasad K. (2011) Temperature dependent electrical resistivity in expoxy : multiwall carbon nanotube nanocomposites. In The 5th World Congress on Engineering Asset Management (WCEAM 2010), 25-27 October 2010, Brisbane Convention and Exhibition Centre, Brisbane, Qld.

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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.

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ID Code: 49256
Item Type: Conference Paper
Keywords: Multi Walled Carbon Nanotubes, Epoxy, Electrical Properties, Nanocomposites, Temperature, Resistivity
DOI: 10.1007/978-0-85729-493-7_55
ISBN: 9780857293015
Subjects: Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanomaterials (100708)
Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanoscale Characterisation (100712)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 21 Mar 2012 08:07
Last Modified: 21 Mar 2012 08:07

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