Experimental investigation and modeling of the electrostrictive relaxor ferroelectric lead magnesium niobate-lead titinate

dc.contributor.authorNamboodri, Chettoor G.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2014-03-14T21:40:38Zen
dc.date.adate2009-07-21en
dc.date.available2014-03-14T21:40:38Zen
dc.date.issued1992en
dc.date.rdate2009-07-21en
dc.date.sdate2009-07-21en
dc.description.abstractFundamental to the design of intelligent material systems and structures are the realization of attributes of the constitutive transducer materials—the sensors and actuators—and the ability to model the characteristics of these transducers. In this thesis, electromechanical behaviors of the electrostrictive relaxor ferroelectric lead magnesium niobate-lead titinate (PMN-PT) are experimentally characterized and phenomenologically modeled. The dependencies of PMN-PT electromechanical transduction on temperature and frequency, characteristics of relaxor ferroelectrics, and on applied direct-current electric field, an attribute of electrostrictors which enables tunable transduction sensitivities, are investigated and modeled with respect to electrical, sensing, and actuation properties. A general procedure for using the developed constitutive models to quantitatively describe the behavior of PMN-PT is introduced for sensing and for the three types of actuation—servo, on/off, and alternating current.en
dc.description.degreeMaster of Scienceen
dc.format.extentxvi, 152 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-07212009-040304en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-07212009-040304/en
dc.identifier.urihttp://hdl.handle.net/10919/43777en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1992.N362.pdfen
dc.relation.isformatofOCLC# 27701148en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1992.N362en
dc.subject.lcshPiezoelectric transducersen
dc.subject.lcshTransducers -- Mathematical modelsen
dc.titleExperimental investigation and modeling of the electrostrictive relaxor ferroelectric lead magnesium niobate-lead titinateen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen
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