Zeb, A and Milne, SJ (2014) Large electromechanical strain in lead-free binary system K0.5 Bi0.5 TiO3- Bi (Mg0.5 Ti0.5) O 3. Journal of the American Ceramic Society, 97 (8). 2413 - 2415. ISSN 0002-7820
Abstract
Solid solution formation in the lead-free binary system (1-x)K 0.5Bi0.5TiO3-xBi(Mg0.5Ti 0.5)O3 has been studied for compositions x ≤ 0.12. X-ray powder diffraction shows single-phase perovskite for x < 0.1, and a mixed phase region between tetragonal and pseudocubic phases for compositions 0.04 ≤ x ≤ 0.06. Large electromechanical strains of ∼0.3% at fields of 50 kV/cm are recorded in the mixed phase region, with d33* (Smax/Emax) values of ∼600 pm/V. The materials sustain polarization at low electric fields with remnant polarization ∼18 μC/cm2 and coercive field ∼20 kV/cm for x = 0.06. Relative permittivity-temperature plots display relaxor characteristics, with peak temperature ∼340°C.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) > Institute for Materials Research (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 17 Mar 2015 10:38 |
Last Modified: | 17 Mar 2015 10:38 |
Published Version: | http://dx.doi.org/10.1111/jace.13110 |
Status: | Published |
Publisher: | Wiley |
Identification Number: | 10.1111/jace.13110 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:83516 |