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河北工业大学
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Tailoring the functional properties of PLZT-BaTiO3 composite ceramics by core-shell approach.

Title: Tailoring the functional properties of PLZT-BaTiO3 composite ceramics by core-shell approach.
Authors: Curecheriu, Lavinia-Petronela1 lavinia.curecheriu@uaic.ro
Buscaglia, Maria Teresa2 v.buscaglia@ge.ieni.cnr.it
Maglia, Filippo3
Padurariu, Cipriana1
Ciobanu, Gabriela1
Anselmi-Tamburini, Umberto3
Buscaglia, Vincenzo2
Mitoseriu, Liliana1 lmtsr@uaic.ro
Source: Journal of Applied Physics. 2017, Vol. 121 Issue 14, p1-7. 7p. 1 Black and White Photograph, 6 Graphs.
Document Type: Article
Subject Terms: CERAMICS
CHEMICAL reactions
PERMITTIVITY
DIELECTRIC properties
ELECTRIC resistance
NAICS/Industry Codes: 327110 Pottery, Ceramics, and Plumbing Fixture Manufacturing
Abstract: In the present work, composite ceramics of BaTiO3 with La0.08Pb0.92Ti0.20Zr0.80O3 were prepared from powders synthesized by two different methods: (a) PLZT@BT ceramics from core-shell powders with PLZT-core and BaTiO3 shell and (b) PLZT-BT ceramic composites from mixed PLZT and BaTiO3 powders. In core-shell ceramics, a thin conductive layer of BaPbO3 was formed that resulted in an increased effective permittivity with relatively low losses (tan δ<0.7 in kHz regions). The extrinsic contributions play an important role in both ceramics, but they are more evident in core-shell samples due to the large number of interfaces. These results show that novel functional properties can be tailored by the controlled chemical reaction at interfaces. [ABSTRACT FROM AUTHOR]
(Copyright applies to all Abstracts.)
Author Affiliations: 1Dielectrics, Ferroelectrics & Multiferroics Group, Department of Physics, Alexandru Ioan Cuza University, 11 Bv. Carol I, 700506 Iasi, Romania ; 2Institute of Condensed Matter Chemistry and Technologies for Energy, Department of Genoa, National Research Council, Via De Marini 6, 16149 Genoa, Italy ; 3Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
ISSN: 0021-8979
PageCount: 1-8
volume: 121
issue: 14
issn: 00218979
pubdate: 2017