Electric features of PZT 70/30–BiMnO3 solid solution ceramics. Issue 9 (September 2015)

• Record Type: Journal Article
• Authors: Molak, A.; Bujakiewicz-Korońska, R.; Ujma, Z.; Leonarska, A.; Szeremeta, A.; Gruszka, I.; Nalecz, D.M.
• Is Part Of: Journal of the European Ceramic Society. Volume 35:Issue 9(2015:Sep.)
• Page Start: 2513
• Page End: 2522
• Publication Date: 2015-09
• Subjects: Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2015.02.025
• Languages: English
• ISSNs: 0955-2219

Abstract

<abstract abstract-type="author" id="abs0005"> <title id="sect0005">Abstract</title> <sec> <p id="spar0005">We sintered the new (1 − <italic>x</italic>)Pb(Zr_0.70Ti_0.30)O₃–<italic>x</italic>BiMnO₃ (<italic>x</italic> = 0, 0.055, and 0.11) ceramics. The XRD test has shown the rhombohedral <italic>R3m</italic> symmetry for the PZT sample. The (1 − <italic>x</italic>)PZT–<italic>x</italic>BiMnO₃ samples show the existence of two phases, the one with <italic>R3m</italic> and the second with orthorhombic <italic>Pbam</italic> symmetry. Scanning electron microscopy test have shown a lack of bismuth oxide and manganese oxides precipitation. The density of states was calculated for a 40-atom supercell which corresponds to (Pb₇Bi)(Zr₄Ti₃Mn)O₂₄ and (Pb₇Bi)(Zr₃MnTi₄)O₂₄ ceramic compositions. The dielectric spectroscopy was conducted for <italic>f</italic> = 100 Hz–1 MHz in the 85–705 K range. The electric permittivity test indicated the existence of PZT phase within the PZT–BiMnO₃ ceramics. The addition of BiMnO₃ caused dispersion of electric conductivity in the low temperature range and induced a relaxor state in the high temperature range.</p> </sec> </abstract>