Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7187
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dc.contributor.advisorAdem, Umut
dc.contributor.advisorAkdoğan, Yaşar
dc.contributor.authorŞanlı, Keriman-
dc.date.accessioned2019-07-17T07:51:29Z
dc.date.available2019-07-17T07:51:29Z
dc.date.issued2018-12en_US
dc.identifier.citationŞanlı, K. (2018). BaTiO3 based ferroelectric materials for electrocaloric cooling applications. Unpublished master's thesis, Izmir Institute of Technology, Izmir, Turkey.en_US
dc.identifier.urihttps://hdl.handle.net/11147/7187
dc.descriptionThesis (Master)--Izmir Institute of Technology, Materials Science and Engineering, Izmir, 2018en_US
dc.descriptionIncludes bibliographical references (leaves: 48-51)en_US
dc.descriptionText in English; Abstract: Turkish and Englishen_US
dc.description.abstractThe aim of this project was to produce electrocaloric materials and to determine the potential of these materials for electrocaloric cooling applications. The electrocaloric effect (ECE) of lead-free Ba0.8Sr0.2Ti1-xZrxO3 (0 ≤ x ≤ 0.10) ferroelectric ceramics was studied. The phase analysis of each ceramic composition that was synthesized by conventional solid-state reaction technique was performed by X-ray Diffraction. Dielectric measurements were done to determine the phase transition temperatures (Curie temperature, Tc) of all compositions and also construct a phase diagram. ΔT values were calculated indirectly using electrical polarization curves measured at different temperatures and Maxwell's equations. ΔT values that were obtained from different regions of the phase diagram are compared. The most suitable composition for applications was chosen considering the ΔT value, temperature range where relatively large ΔT is preserved and the Curie temperature of all ceramics. Ba0.8Sr0.2Ti0.93Zr0.07O3 ceramic located near the critical point shows the best performance with ΔT value of 0.40 K under 20 kV/cm. In comparison with the lead-free ceramics studied in the literature, Ba0.8Sr0.2Ti1-xZrxO3 system can be considered as one of the best candidates for future electrocaloric cooling technologies.en_US
dc.description.sponsorshipTurkish Scientific and Technological Research Council (315M241) and IZTECHen_US
dc.format.extentx, 51 leavesen_US
dc.language.isoenen_US
dc.publisherIzmir Institute of Technologyen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectElectrocaloric materialsen_US
dc.subjectFerroelectric ceramicsen_US
dc.subjectElectrocaloric effecten_US
dc.titleBaTiO3 based ferroelectric materials for electrocaloric cooling applicationsen_US
dc.title.alternativeElektrokalorik soğutma uygulamaları için BaTiO3 temelli ferroelektrik malzemeleren_US
dc.typeMaster Thesisen_US
dc.institutionauthorŞanlı, Keriman-
dc.departmentIzmir Institute of Technology. Materials Science and Engineeringen_US
dc.relation.tubitakinfo:eu-repo/grantAgreement/TUBITAK/MAG/315M241
dc.relation.publicationcategoryTezen_US
item.fulltextWith Fulltext-
item.openairetypeMaster Thesis-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextopen-
Appears in Collections:Master Degree / Yüksek Lisans Tezleri
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