<abstract xmlns="http://www.w3.org/1999/xhtml">Lead-free (Na0.5Bi0.5)1-xBaxTiO3 (x = 0, 0.04 and 0.06) ceramics were fabricated by conventional solid phase sintering process. X-ray diffraction analysis shows that obtained specimens possess the perovskite structure. The microstructure study shows a dense structure, in good agreement with the relative density determined by the Archimedes method (above 95 %). Electric permittivity anomaly is shifted to low temperature after Ba doping of NBT. The pyroelectric and hysteresis loops measurements show that polarization and coercive field increases and decreases, respectively, after Ba doping of NBT. The obtained results are discussed in terms of ions/lattice imperfections, which create local electromechanical fields. The investigated ceramics are considered to be promising candidates for lead-free electronic materials.</abstract>

Lead-free (Na0.5Bi0.5)1-xBaxTiO3 (x = 0, 0.04 and 0.06) ceramics were fabricated by conventional solid phase sintering process. X-ray diffraction analysis shows that obtained specimens possess the perovskite structure. The microstructure study shows a dense structure, in good agreement with the relative density determined by the Archimedes method (above 95 %). Electric permittivity anomaly is shifted to low temperature after Ba doping of NBT. The pyroelectric and hysteresis loops measurements show that polarization and coercive field increases and decreases, respectively, after Ba doping of NBT. The obtained results are discussed in terms of ions/lattice imperfections, which create local electromechanical fields. The investigated ceramics are considered to be promising candidates for lead-free electronic materials.

Effect of Ba addition on the structural, dielectric and ferroelectric properties of Na0.5Bi0.5TiO3 ceramics

Institute of Technology, Pedagogical University, ul. Podchorazych 2, 30-084 Krakow, Poland

Institute of Physics, Pedagogical University, ul. Podchorazych 2, 30-084 Krakow, Poland

Institute of Nuclear Physics PAN, ul. Radzikowskiego 152, 31-342 Krakow, Poland

Materials Science-Poland

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Effect of Ba addition on the structural, dielectric and ferroelectric properties of NaBiTiO ceramics

Lead-free (Na0.5Bi0.5)1-xBaxTiO3 (x = 0, 0.04 and 0.06) ceramics were fabricated by conventional solid phase sintering process. X-ray diffraction analysis...

Effect of Ba addition on the structural, dielectric and ferroelectric properties of Na_0.5Bi_0.5TiO₃ ceramics

Published Online: Jul 11, 2015

Page range: 414 - 417

Received: Sep 22, 2014

Accepted: Mar 03, 2015

DOI: https://doi.org/10.1515/msp-2015-0056

© 2015

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.