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Materials science on the nano-scale for improvements in actuation properties of dielectric elastomer actuators

Kofod, G, McCarthy, DN, Stoyanov, H, Kollosche, M, Risse, S, Ragusch, H, Rychkov, D, Dansachmüller, M and Waché, R (2010) Materials science on the nano-scale for improvements in actuation properties of dielectric elastomer actuators Proceedings of SPIE - The International Society for Optical Engineering, 7642.

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Abstract

We discuss various approaches to increasing the dielectric constant of elastomer materials, for use in dielectric elastomer actuators. High permittivity metal-oxide nano-particles can show elevated impact compared to larger size particles, but suffer from water uptake. Composites with conducting particles lead to extremely high permittivity caused by percolation, but they often suffer early breakdown. We present experiments on approaches combining metal-oxides and metal particles, which compensate for the drawbacks, and may lead to useful DEA materials in which all relevant properties are technologically useful. The key seems to be to avoid percolation and achieve a constant nearest-neighbor separation. © 2010 Copyright SPIE - The International Society for Optical Engineering.

Item Type: Article
Authors :
NameEmailORCID
Kofod, GUNSPECIFIEDUNSPECIFIED
McCarthy, DNUNSPECIFIEDUNSPECIFIED
Stoyanov, HUNSPECIFIEDUNSPECIFIED
Kollosche, MUNSPECIFIEDUNSPECIFIED
Risse, SUNSPECIFIEDUNSPECIFIED
Ragusch, HUNSPECIFIEDUNSPECIFIED
Rychkov, DUNSPECIFIEDUNSPECIFIED
Dansachmüller, MUNSPECIFIEDUNSPECIFIED
Waché, RUNSPECIFIEDUNSPECIFIED
Date : 14 June 2010
Identification Number : https://doi.org/10.1117/12.847281
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:32
Last Modified : 17 May 2017 12:32
URI: http://epubs.surrey.ac.uk/id/eprint/835735

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