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Ionic polymer transducers in sensing: Implications of the streaming potential hypothesis for varied electrode architecture and loading rate

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2 Author(s)
Gao, Fei ; Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA ; Weiland, Lisa M.

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.3456066 

Explored is the mechanism of streaming potential in the sensing response of ionic polymer transducers, sometimes referred to as ionic polymer metal composites. It is argued that, unlike previous hypotheses, the streaming potential hypothesis is insensitive to the assumed ionomer morphology, and accommodates experimental observation of sensing under shear loading. As demonstration a simplified model for sensing under bending deformation is presented for a material system displaying a cylindrical channel morphology. Specific demonstration scenarios considered include predicting the evolution of sensing with electrode particulate volume fraction and type. In addition, evolution of sensing for both step and oscillatory loading is considered.

Published in:
Journal of Applied Physics  (Volume:108 ,  Issue: 3 )

Date of Publication: Aug 2010

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