ScholarWorks: High-temperature dielectrics in CaZrO3-modified Bi1/2Na1/2TiO3-based lead-free ceramics

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Jo, Wook

Sustainable Functional Ceramics Lab

Research Interests

Lead-free piezoceramics, ultra - low temperature sintering, ferroelectrics, relaxor ferroelectrics, 2D materials, magnetoelectric materials, multiferroics

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High-temperature dielectrics in CaZrO3-modified Bi1/2Na1/2TiO3-based lead-free ceramics

DC Field	Value	Language
dc.contributor.author	Acosta, Matias	ko
dc.contributor.author	Zang, Jiadong	ko
dc.contributor.author	Jo, Wook	ko
dc.contributor.author	Roedel, Juergen	ko
dc.date.available	2014-10-21T08:34:38Z	-
dc.date.created	2014-10-21	ko
dc.date.issued	2012-12	-
dc.identifier.citation	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, v.32, no.16, pp.4327 - 4334	ko
dc.identifier.issn	0955-2219	ko
dc.identifier.uri	https://scholarworks.unist.ac.kr/handle/201301/7528	-
dc.identifier.uri	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84866766281	ko
dc.description.abstract	Materials in two composition regimes, Bi1/2Na1/2TiO3-BaTiO3-CaZrO3 (BNT-BT-CZ) and Bi1/2Na1/2TiO3-BaTiO3-K0.5Na0.5NbO3-CaZrO3 (BNT-BT-KNN-CZ), were synthesized via the mixed oxide route and their structural, dielectric and electrical properties were investigated. CZ was identified to render the two local maxima in permittivity more diffused. This resulted in temperature-insensitive relative permittivity spectra with average values from similar to 470 up to similar to 2300 and operational windows of at least similar to 400 degrees C with less than 15% of variation in the temperature range from -100 up to above 500 degrees C. Moreover, loss factors are below similar to 10% and RC constants range from similar to 0.03 s up to similar to 4 s at 300 degrees C. The materials of current investigation are highly attractive for developing capacitors of wide temperature usage.	ko
dc.description.statementofresponsibility	close	-
dc.language	ENG	ko
dc.publisher	ELSEVIER SCI LTD	ko
dc.subject	Capacitors	ko
dc.subject	Dielectric properties	ko
dc.subject	Electrical conductivity	ko
dc.subject	Ferroelectric properties	ko
dc.subject	Relaxor	ko
dc.title	High-temperature dielectrics in CaZrO3-modified Bi1/2Na1/2TiO3-based lead-free ceramics	ko
dc.type	ARTICLE	ko
dc.identifier.scopusid	2-s2.0-84866766281	ko
dc.identifier.wosid	000310392600042	ko
dc.type.rims	ART	ko
dc.description.wostc	14	*
dc.description.scopustc	10	*
dc.date.tcdate	2015-05-06	*
dc.date.scptcdate	2014-10-21	*
dc.identifier.doi	10.1016/j.jeurceramsoc.2012.06.011	ko