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Maintaining local displacive disorders in Na0.5Bi0.5TiO3 piezoceramics by K0.5Bi0.5TiO3 substitution

Rao, Badari Narayana and Senyshyn, Anatoliy and Olivi, Luca and Sathe, Vasant and Ranjan, Rajeev (2016) Maintaining local displacive disorders in Na0.5Bi0.5TiO3 piezoceramics by K0.5Bi0.5TiO3 substitution. In: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 36 (8). pp. 1961-1972.

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Official URL: http://dx.doi.org/10.1016/j.jeurceramsoc.2016.02.0...


A comprehensive global and local structural characterization using X-ray and neutron diffraction, and EXAFS have been performed to investigate the effect of electrical poling on the structure of (1-x)Na0.5Bi0.5TiO3-(x)K0.5Bi0.5TiO3 compositions. While the annealed samples showed definite indication of presence of local displacive disorders in all the compositions studied (0 <x <0.3), this disorder persisted to some extent even after poling the samples. The tendency of electric field to reduce the local displacive disorder decreased with increasing K0.5Bi0.5TiO3 content in the samples. (C) 2016 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Keywords: Lead-free; Na0.5Bi0.5TiO3-K0.5Bi0.5TiO3; Structure characterization; Ferroelectrics
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Depositing User: Id for Latest eprints
Date Deposited: 12 May 2016 05:37
Last Modified: 12 May 2016 05:37
URI: http://eprints.iisc.ac.in/id/eprint/53828

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