Electric-field-dependent phase volume fractions and enhanced piezoelectricity near the polymorphic phase boundary of (K0.5Na0.5)(1-x)LixNbO3 textured ceramics

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dc.contributorVirginia Techen
dc.contributor.authorGe, Wenweien
dc.contributor.authorLi, Jiefangen
dc.contributor.authorViehland, Dwight D.en
dc.contributor.authorChang, Y. F.en
dc.contributor.authorMessing, G. L.en
dc.contributor.departmentMaterials Science and Engineering (MSE)en
dc.date.accessed2014-04-23en
dc.date.accessioned2014-05-07T15:36:56Zen
dc.date.available2014-05-07T15:36:56Zen
dc.date.issued2011-06-01en
dc.description.abstractThe structure, ferroelectric and piezoelectric properties of < 001 > textured (K0.5Na0.5)(0.98)Li0.02NbO3 ceramics were investigated as a function of temperature and dc bias E. X-ray diffraction revealed an orthorhombic (O) -> tetragonal (T) polymorphic phase boundary (PPB). Phase coexistence was found near the PPB over a 30 degrees C temperature range, where the relative phase volume fractions changed with temperature. Furthermore, increasing E applied along the < 001 > texture direction resulted in a notable increase in the volume fraction of the T phase at the expense of the O phase, effectively shifting the O -> T boundary to lower temperature. An enhancement in the piezoelectric properties was found to accompany this increase in the T volume fraction.en
dc.description.sponsorshipNational Science Foundation (Materials World Network) DMR-0806592en
dc.description.sponsorshipDepartment of Energy DE-FG02-07ER46480en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationGe, W. W.; Li, J. F.; Viehland, D.; Chang, Y. F.; Messing, G. L., "Electric-field-dependent phase volume fractions and enhanced piezoelectricity near the polymorphic phase boundary of (K0.5Na0.5)(1-x)LixNbO3 textured ceramics," Phys. Rev. B 83, 224110 DOI: http://dx.doi.org/10.1103/PhysRevB.83.224110en
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.83.224110en
dc.identifier.issn1098-0121en
dc.identifier.urihttp://hdl.handle.net/10919/47838en
dc.identifier.urlhttp://journals.aps.org/prb/abstract/10.1103/PhysRevB.83.224110en
dc.language.isoen_USen
dc.publisherAmerican Physical Societyen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectLead-free piezoceramicsen
dc.subjectTemplated grain-growthen
dc.subjectPolarization rotationen
dc.subjectMicrostructureen
dc.subjectFerroelectricsen
dc.subjectNiobateen
dc.subjectPhysicsen
dc.subjectCondensed matteren
dc.titleElectric-field-dependent phase volume fractions and enhanced piezoelectricity near the polymorphic phase boundary of (K0.5Na0.5)(1-x)LixNbO3 textured ceramicsen
dc.title.serialPhysical Review Ben
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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