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Title: Electric and dielectric properties of (Ba0.6Pb0.4)TiO3 ceramics modified with special glass in the range of phase transition
Authors: Wodecka-Duś, Beata
Adamczyk-Habrajska, Małgorzata
Goryczka, Tomasz
Radoszewska, Daria
Feliksik, Kamil
Kozielski, Lucjan
Keywords: (Ba0.6Pb0.4)TiO3; special glass modifier; dielectric properties; PTCR effect
Issue Date: 2018
Citation: Processing and Application of Ceramics, Vol. 12, iss. 2 (2018), s. 129-135
Abstract: Perovskite ceramics (Ba0.6Pb0.4)TiO3 modified with PbO-B2O3-Al2O3-WO3 special glass was prepared with the conventional mixed oxide method. X-ray diffraction analysis (XRD) of the obtained materials confirmed singlephase and pure tetragonal structure. The Rietveld method was used to determine unit cell parameters. Uniform deformation of the tetragonal parameter was observed with addition of the glass. Dielectric measurements revealed the remarkable influence of special glass admixture on the value of dielectric permittivity and dielectric losses, as well as the Curie temperature. However, the most important achievement of the investigations is obtaining a significant PTCR effect in the sample containing 6 wt.% of special glass admixture.
DOI: 10.2298/PAC1802129W
ISSN: 1820-6131
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