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Please use this identifier to cite or link to this item: https://olympias.lib.uoi.gr/jspui/handle/123456789/13921
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dc.contributor.authorWang, D. W.en
dc.contributor.authorCao, M. S.en
dc.contributor.authorYuan, J.en
dc.contributor.authorZhao, Q. L.en
dc.contributor.authorLi, H. B.en
dc.contributor.authorZhang, D. Q.en
dc.contributor.authorAgathopoulos, S.en
dc.date.accessioned2015-11-24T17:34:02Z-
dc.date.available2015-11-24T17:34:02Z-
dc.identifier.issn0002-7820-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/13921-
dc.rightsDefault Licence-
dc.subjectelectrical-propertiesen
dc.subjectpzt ceramicsen
dc.subjectznoen
dc.subjectnanocompositesen
dc.subjectbehavioren
dc.titleEnhanced Piezoelectric and Ferroelectric Properties of Nb2O5 Modified Lead Zirconate Titanate-Based Compositesen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDOI 10.1111/j.1551-2916.2010.04309.x-
heal.identifier.secondary<Go to ISI>://000288261500002-
heal.identifier.secondaryhttp://onlinelibrary.wiley.com/store/10.1111/j.1551-2916.2010.04309.x/asset/j.1551-2916.2010.04309.x.pdf?v=1&t=h3cr656l&s=d854c793bb5fd3a61c5c9f4aa1f8895c3d8877e9-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικώνel
heal.publicationDate2011-
heal.abstractThe addition of ZnO nanowhiskers (ZnOw) in lead zirconate titanate (PZT) matrices results in reinforced composite materials but deteriorates their electrical properties. In this study, novel piezoelectric PZT/ZnOw composites modified with Nb2O5 were successfully fabricated using solid-state sintering method. The experimental results showed that the addition of 0.5 wt% Nb2O5 resulted in highly dense and homogenous PZT composites after sintering at 1150 degrees C, with good piezoelectric and ferroelectric properties similar to pure PZT, specifically piezoelectric constant d(33)=665 pC/N, electromechanical coupling factor k(p)=0.7, relative dielectric constant epsilon=5048, and remnant polarization P-r=30.2 mu C/cm2. The "soft effect" of Nb5+ ions, reflected in the improvement of the aforementioned properties, is attributed to the accommodation of Nb5+ ions at the B sites of the lattice of PZT. Compared with the PZT/ZnOw reinforced composites, the mechanical properties were slightly improved by adding 0.5 wt% Nb2O5, where flexural strength Sigma(f) of 128 MPa and fracture toughness K-IC of 1.46 MPa center dot m1/2 were measured.en
heal.publisherThe American Ceramic Societyen
heal.journalNameJournal of the American Ceramic Societyen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
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