Domain wall release in "hard" piezoelectric under continuous large amplitude ac excitation

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dc.contributorVirginia Tech. Department of Materials Science and Engineeringen
dc.contributorHitchiner Manufacturing, Inc.en
dc.contributorPenn State. International Center for Actuators and Transducers. Materials Research Instituteen
dc.contributor.authorGao, Yongkangen
dc.contributor.authorUchino, Kenjien
dc.contributor.authorViehland, Dwight D.en
dc.contributor.departmentMaterials Science and Engineering (MSE)en
dc.date.accessed2015-04-24en
dc.date.accessioned2015-05-21T19:47:30Zen
dc.date.available2015-05-21T19:47:30Zen
dc.date.issued2007-06-01en
dc.description.abstractSystematic investigation of large amplitude ac excitation effects on the polarization-electric-field (P-E) and strain-electric-field (epsilon-E) characteristics of both "hard" and "soft" Pb(Zr,Ti)O-3 ceramics was performed. Upon ac excitation, a gradual disappearance of the shift on P-E response along the E axis (E-int) was observed for the hard piezoelectric; however, no such change was observed for the soft one. With increasing ac excitation cycle number, for a hard piezoelectric the internal dipolar field and mechanical quality factor Q(m) decrease by following an exponential time law, whereas the electromechanical and dielectric properties increase with significant deviation from the time law. It is proposed that additional domain release mechanism may exist for hard piezoelectric, besides the decrease of internal dipolar field upon continuous ac excitation. (c) 2007 American Institute of Physics.en
dc.format.extent8 pagesen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationGao, Yongkang, Uchino, Kenji, Viehland, Dwight (2007). Domain wall release in "hard" piezoelectric under continuous large amplitude ac excitation. Journal of Applied Physics, 101(11). doi: 10.1063/1.2745437en
dc.identifier.doihttps://doi.org/10.1063/1.2745437en
dc.identifier.issn0021-8979en
dc.identifier.urihttp://hdl.handle.net/10919/52471en
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/jap/101/11/10.1063/1.2745437en
dc.language.isoen_USen
dc.publisherAmerican Institute of Physicsen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectPiezoelectric transducersen
dc.subjectPiezoelectric fieldsen
dc.subjectDomain wallsen
dc.subjectAlternating current power transmissionen
dc.subjectCeramicsen
dc.titleDomain wall release in "hard" piezoelectric under continuous large amplitude ac excitationen
dc.title.serialJournal of Applied Physicsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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