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The effect of biaxial texture on the effective electromechanical constants of polycrystalline barium titanate and lead titanate thin films

Ruglovsky, Jennifer L. and Li, Jiangyu and Diest, Kenneth A. and Bhattacharya, Kaushik and Atwater, Harry A. (2006) The effect of biaxial texture on the effective electromechanical constants of polycrystalline barium titanate and lead titanate thin films. Acta Materialia, 54 (14). pp. 3657-3663. ISSN 1359-6454. https://resolver.caltech.edu/CaltechAUTHORS:20131007-140336325

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Abstract

Effective electromechanical constants as a function of biaxial crystallographic texture in polycrystalline films are modeled using a self-consistent approach. The film is modeled by assuming Gaussian distributions of two Euler angle textures about perfect orientation with varying spread, or full width at half maximum. We see that independent in-plane texturing has little effect on the piezoelectric displacement tensor. Increased out-of-plane texturing gives rise to an enhanced piezoelectric effect for barium titanate films, but not for lead titanate. Twist texturing about these out-of-plane angles shows a further enhancement in the non-shear components of the piezoelectric displacement tensor for both materials. Finally, we use the effective piezoelectric coupling factor as the primary figure of merit for the effective piezoelectric properties of polycrystal devices, thus utilizing all electromechanical constants of this simulation. This quantity shows a primary dependence on the out-of-plane texture.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.actamat.2006.03.023 DOIArticle
http://www.sciencedirect.com/science/article/pii/S1359645407001462ErrataErrata
ORCID:
AuthorORCID
Li, Jiangyu0000-0003-0533-1397
Bhattacharya, Kaushik0000-0003-2908-5469
Atwater, Harry A.0000-0001-9435-0201
Additional Information:© 2006 Acta Materialia Inc. Published by Elsevier Ltd. Received 31 January 2006; received in revised form 9 March 2006; accepted 12 March 2006; Available online 11 July 2006. This work was supported by the United States Department of Defense MURI award DAAD19-01-1-0517, administered by the Army Research Office and Arrowhead Research Corporation.
Funders:
Funding AgencyGrant Number
Army Research Office (ARO)DAAD19-01-1-0517
Arrowhead Research CorporationUNSPECIFIED
Subject Keywords:Piezoelectricity; Thin films; Texture; Orientation distribution
Issue or Number:14
Record Number:CaltechAUTHORS:20131007-140336325
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20131007-140336325
Official Citation:Jennifer L. Ruglovsky, Jiangyu Li, Kaushik Bhattacharya, Harry A. Atwater, The effect of biaxial texture on the effective electromechanical constants of polycrystalline barium titanate and lead titanate thin films, Acta Materialia, Volume 54, Issue 14, August 2006, Pages 3657-3663, ISSN 1359-6454, http://dx.doi.org/10.1016/j.actamat.2006.03.023. (http://www.sciencedirect.com/science/article/pii/S1359645406002205)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:41720
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:07 Oct 2013 21:28
Last Modified:18 Nov 2020 23:08

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