Effect of alumina or zirconia particles on the performance of lead-free BCZT piezoceramics

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dc.contributor.authorMařák, Vojtěchcs
dc.contributor.authorDrdlík, Danielcs
dc.contributor.authorBijalwan, Vijaycs
dc.contributor.authorTofel, Pavelcs
dc.contributor.authorErhart, Jiřícs
dc.contributor.authorChlup, Zdeněkcs
dc.contributor.authorMaca, Karelcs
dc.coverage.issue24cs
dc.coverage.volume50cs
dc.date.issued2024-12-15cs
dc.description.abstractThe barium titanate derivative Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) offers high dielectric and piezoelectric performance but has poor mechanical properties. Ceramic composite materials combining BCZT with tougher Al2O3 or ZrO2 could be the solution to the inherent brittleness of electroceramics. This work focuses on BCZT with 1–5 vol% addition of reinforcing phase dispersed in the microstructure. While hardness was improved in all composites, especially in ZrO2-reinforced BCZT, toughness was positively affected only by Al2O3. The chemical reactivity of BCZT during sintering resulted in the formation of new barium aluminate phases at the grain boundaries and possibly also within the grains, which affected the electrical properties of the composites. The addition of zirconia resulted in the formation of BaZrO3 or Ba(Zr,Ti)O3, which is a natural part of the BCZT solid solution and shifts the phase composition towards relaxor behaviour. ZrO2-reinforced composites exhibited higher permittivity but lower ferroelectric properties, accompanied by a substantial Curie temperature decrease.en
dc.formattextcs
dc.format.extent53491-53501cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationCERAMICS INTERNATIONAL. 2024, vol. 50, issue 24, p. 53491-53501.en
dc.identifier.doi10.1016/j.ceramint.2024.10.199cs
dc.identifier.issn1873-3956cs
dc.identifier.orcid0000-0001-6594-5214cs
dc.identifier.orcid0000-0003-4545-7779cs
dc.identifier.orcid0000-0002-4779-7024cs
dc.identifier.orcid0000-0002-7535-6920cs
dc.identifier.other189904cs
dc.identifier.researcheridE-1633-2012cs
dc.identifier.researcheridE-2376-2012cs
dc.identifier.researcheridD-7520-2012cs
dc.identifier.scopus57216900419cs
dc.identifier.scopus51863504600cs
dc.identifier.scopus6603065815cs
dc.identifier.urihttp://hdl.handle.net/11012/250063
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofCERAMICS INTERNATIONALcs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S0272884224047187cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1873-3956/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectLead-free piezoceramicsen
dc.subjectParticle compositeen
dc.subjectBarium calcium zirconium titanateen
dc.subjectAluminaen
dc.subjectZirconiaen
dc.titleEffect of alumina or zirconia particles on the performance of lead-free BCZT piezoceramicsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-189904en
sync.item.dbtypeVAVen
sync.item.insts2025.03.06 11:53:34en
sync.item.modts2025.03.04 15:32:03en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. ÚMVI-odbor keramiky a polymerůcs
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav fyzikycs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilá multifunkční keramikacs
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Pokročilá multifunkční keramika
ÚMVI-odbor keramiky a polymerů
Ústav fyziky