Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4033
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dc.contributorDepartment of Applied Physics-
dc.contributorMaterials Research Centre-
dc.creatorWei, EB-
dc.creatorGu, GQ-
dc.creatorPoon, YM-
dc.creatorShin, FG-
dc.date.accessioned2014-12-11T08:27:12Z-
dc.date.available2014-12-11T08:27:12Z-
dc.identifier.issn0021-8979-
dc.identifier.urihttp://hdl.handle.net/10397/4033-
dc.language.isoenen_US
dc.publisherAmerican Institute of Physicsen_US
dc.rights© 2007 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in E. B. Wei et al., J. Appl. Phys. 102, 074102 (2007) and may be found at http://link.aip.org/link/?jap/102/074102.en_US
dc.subjectComposite materialsen_US
dc.subjectPermittivityen_US
dc.subjectPiezoelectric materialsen_US
dc.titleDielectric response of spherically anisotropic graded piezoelectric compositesen_US
dc.typeJournal/Magazine Articleen_US
dc.description.otherinformationAuthor name used in this publication: Y. M. Poonen_US
dc.description.otherinformationAuthor name used in this publication: F. G. Shinen_US
dc.identifier.spage1-
dc.identifier.epage7-
dc.identifier.volume102-
dc.identifier.issue7-
dc.identifier.doi10.1063/1.2785020-
dcterms.abstractA graded piezoelectric composite consisting of a spherically anisotropic graded piezoelectric inclusion imbedded in an infinite nonpiezoelectric matrix, with the physical properties of the graded spherical inclusion having a power-law profile with respect to the radial variable r, is studied theoretically. Under an external uniform electric field, the electric displacement field and the elastic stress tensor field of this spherically anisotropic graded piezoelectric composite are derived exactly by means of displacement separation technique, based on the governing equations in the dilute limit. A piezoelectric response mechanism, in which the effective piezoelectric response vanishes along the z direction (or x,y directions), is revealed in this kind of graded piezoelectric composites. Furthermore, it is found that the effective dielectric constant decreases (or increases) with the volume fraction p of the inclusions if the exponent parameter k of the grading profile is larger (or smaller) than a critical value.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationJournal of applied physics, 1 Oct. 2007, v. 102, no. 7, 074102, p. 1-7-
dcterms.isPartOfJournal of applied physics-
dcterms.issued2007-10-01-
dc.identifier.isiWOS:000250147700092-
dc.identifier.scopus2-s2.0-35348928701-
dc.identifier.eissn1089-7550-
dc.identifier.rosgroupidr39346-
dc.description.ros2007-2008 > Academic research: refereed > Publication in refereed journal-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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