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Proceedings Paper

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

Self-sensing and actuation were investigated for CNF and Ni nanowire/epoxy and silicone composites. Electro-micromechanical techniques can be used for self sensing for loading, temperature. CNF/epoxy composites with smaller aspect ratio showed higher apparent modulus due to high volume content in case of shorter aspect ratio. Apparent modulus and electrical resistivity change were evaluated as functions of different carbon fiber types. Interfacial properties of CNF/epoxy with different aspect ratios were obtained indirectly. Using Ni nanowire/silicone composites with different content, load sensing response of electrical contact resistivity was investigated under tensile and compression condition. The mechanical properties of Ni nanowire with different type and content/epoxy composites were indirectly measured apparent modulus using uniformed cyclic loading and electro-pullout test. Ni nanowire /epoxy composites showed temperature sensing within limited ranges, 20 vol% reinforcement. CNF-PVDF and Ni-silicone actuator were made successfully. Electrochemical actuator of CNF-PVDF was responded in electrolyte solution. Magnetic actuator of Ni nanowire-silicone composites was monitored under electro-magnetic field. CNF-Ni nanowire-silicone actuator having meaningful merits can be expected to be new smart structural materials at a various applications. Nanocomposites using CNF and Ni nanowire can be applicable practically for multi-functional applications nondestructively.

Paper Details

Date Published: 19 January 2007
PDF: 11 pages
Proc. SPIE 6463, Reliability, Packaging, Testing, and Characterization of MEMS/MOEMS VI, 64630B (19 January 2007); doi: 10.1117/12.703384
Show Author Affiliations
Joung-Man Park, Gyeongsang National Univ. (South Korea)
The Univ. of Utah (United States)
Sung-Ju Kim, Gyeongsang National Univ. (South Korea)
Pyung-Gee Kim, Gyeongsang National Univ. (South Korea)
Dong-Jin Yoon, Korea Research Institute of Standard 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. 6463:
Reliability, Packaging, Testing, and Characterization of MEMS/MOEMS VI
Allyson L. Hartzell; Rajeshuni Ramesham, Editor(s)

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