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Proceedings Paper

Self-sensing of CNF and Ni nanowire/PVDF and cellulose composites using electro-micromechanical test
Author(s): Joung-Man Park; Pyung-Gee Kim; Jung-Hoon Jang; Sung-Ju Kim; Dong-Jin Yoon; George Hansen; K. Lawrence DeVries
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Paper Abstract

Self-sensing and actuation were investigated for carbon nanofiber (CNF) and Ni nanowire/polymer composites. Electro-micromechanical techniques can be used for evaluating self-sensing and interfacial properties indirectly under loading/subsequent unloading. Apparent modulus and contact resistivity for CNF/epoxy composites were evaluated as functions of different aspect ratio. CNF/epoxy composites with smaller aspect ratio shown to be higher apparent modulus due to high volume content in case of short aspect ratio. Surface energy via dynamic contact angle measurement was evaluated to obtain interfacial adhesion between nano-materials embedded matrix and carbon fiber sensor. Interfacial properties of CNF/epoxy with different aspect ratios were also obtained indirectly. CNF-PVDF, Ni nanowire-CNF-silicone and Ni nanowire-cellulose actuator were made successfully. Electrochemical actuator of CNF-PVDF was responded in electrolyte solution. Magnetic actuators of Ni nanowire-CNF-silicone and Ni nanowire-cellulose composites were monitored under electro-magnetic field with different frequency, wave function and voltage. Ni nanowire-CNF-silicone actuator with lightness and Ni nanowire-cellulose actuator with rapid frequency response having meaningful merits can be applied for various new smart structural materials.

Paper Details

Date Published: 18 September 2007
PDF: 10 pages
Proc. SPIE 6645, Nanoengineering: Fabrication, Properties, Optics, and Devices IV, 66451D (18 September 2007); doi: 10.1117/12.731389
Show Author Affiliations
Joung-Man Park, Gyeongsang National Univ. (South Korea)
The Univ. of Utah (United States)
Pyung-Gee Kim, Gyeongsang National Univ. (South Korea)
Jung-Hoon Jang, Gyeongsang National Univ. (South Korea)
Sung-Ju Kim, Gyeongsang National Univ. (South Korea)
Dong-Jin Yoon, Korea Research Institute of Standards and Science (South Korea)
George Hansen, Metal Matrix Composites, Inc. (United States)
K. Lawrence DeVries, The Univ. of Utah (United States)

Published in SPIE Proceedings Vol. 6645:
Nanoengineering: Fabrication, Properties, Optics, and Devices IV
Elizabeth A. Dobisz; Louay A. Eldada, Editor(s)

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