Show simple item record

dc.date.accessioned2021-03-19T12:57:05Z
dc.date.available2021-03-19T12:57:05Z
dc.date.issued2021-02-18
dc.identifierdoi:10.17170/kobra-202103043421
dc.identifier.urihttp://hdl.handle.net/123456789/12662
dc.description.sponsorshipGefördert im Rahmen eines Open-Access-Transformationsvertrags mit dem Verlagger
dc.language.isoengeng
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectpiezoelectric energy harvestingeng
dc.subjectferroelectricityeng
dc.subjectdomain wallseng
dc.subjectpolarizationeng
dc.subjectpiezoelectricseng
dc.subjectdomain switchingeng
dc.subjectcondensed methodeng
dc.subject.ddc620
dc.titleExploiting ferroelectric and ferroelastic effects in piezoelectric energy harvesting: theoretical studies and parameter optimizationeng
dc.typeAufsatz
dcterms.abstractWhile piezoelectric energy harvesting typically focuses on converting mechanical into electrical energy on the basis of the linear reversible piezoelectric effect, the potential of exploiting the non-linear ferroelectric effect is investigated theoretically in this paper. Due to its dissipative nature, domain switching, on the one hand, is basically avoided in order to prevent mechanical energy from being converted into heat. However, the electrical output, on the other hand, is augmented due to the increased change of electric displacement. In view of these conflicting issues, one main objective in ferroelectric energy harvesting thus is to identify mechanical and electrical process parameters providing appropriate figures of merit. Being an efficient approach to numerically simulate multiphysical polycrystalline material behavior, the so-called condensed method is taken as a basis for the investigation and finally optimization of controllable parameters of ferroelectric energy harvesting cycles. A first idea of a technical implementation taken from literature is considered as cycle of reference, constituting the starting point of the present study, being focused on material aspects rather than on harvesting devices. Different quality assessing parameters are introduced, taking into account general aspects of harvesting efficiency as well as the ratio of irreversible switching-related to reversible piezoelectric contributions. Residual stresses are likewise predicted to give an idea of reliability and the risk of fracture. Two types of cycles and associated optimal process parameters are finally presented.eng
dcterms.accessRightsopen access
dcterms.creatorBehlen, Lennart
dcterms.creatorWarkentin, Andreas
dcterms.creatorRicoeur, Andreas
dc.relation.doidoi:10.1088/1361-665X/abe2bc
dc.subject.swdEnergy Harvestingger
dc.subject.swdPiezoelektrizitätger
dc.subject.swdFerroelektrizitätger
dc.subject.swdBloch-Wandger
dc.subject.swdPolarisationger
dc.type.versionpublishedVersion
dcterms.source.identifierEISSN 1361-665X
dcterms.source.issueNumber 3
dcterms.source.journalSmart Materials and Structureseng
dcterms.source.volumeVolume 30
kup.iskupfalse
dcterms.source.articlenumber035031


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record

Namensnennung 4.0 International
Except where otherwise noted, this item's license is described as Namensnennung 4.0 International