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A model for large electrostrictive actuation in ferroelectric single crystals

Shilo, D. and Burcsu, E. and Ravichandran, G. and Bhattacharya, K. (2007) A model for large electrostrictive actuation in ferroelectric single crystals. International Journal of Solids and Structures, 44 (6). pp. 2053-2065. ISSN 0020-7683.

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A new mode of large electrostrictive actuation, based on 90° domain switching in ferroelectric crystals subjected to combined electromechanical loading, has recently been experimentally demonstrated. In this paper, we develop a model for this phenomenon by assuming a reasonable arrangement of domain walls and formulating equations of motion for these walls. The model captures most of the features observed in the experiments, reveals the significant role of friction at the interfaces between the loading frame and the crystal surfaces, and predicts that a reduction of friction will allow larger strains at lower mechanical loads.

Item Type:Article
Related URLs:
URLURL TypeDescription
Ravichandran, G.0000-0002-2912-0001
Bhattacharya, K.0000-0003-2908-5469
Additional Information:© 2006 Elsevier Ltd. Received 13 June 2006. Guest Editor: T. Nakamura. Available online 3 August 2006. We are grateful for the research support provided by the US Army Research Office (DAAD-19-01-1-0517) through a MURI on Engineered Microstructural Complexity in Ferroelectric Devices. D.S. is grateful for the financial support of the Israeli Science Foundation (ISF contract 437/05).
Funding AgencyGrant Number
Army Research Office (ARO)DAAD-19-01-1-0517
Israeli Science Foundation437/05
Subject Keywords:Ferroelectrics; Actuation; Electromechanical loading; Friction
Issue or Number:6
Record Number:CaltechAUTHORS:20101007-120102984
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:20339
Deposited By: Jason Perez
Deposited On:13 Oct 2010 17:27
Last Modified:09 Mar 2020 13:19

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