Journal
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume 32, Issue 3, Pages 517-520Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2011.09.020
Keywords
Sintering; Dielectric properties; Ferroelectric properties; Piezoelectric properties; Titanates
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Funding
- Natural Science Foundation of Shandong Province of China [ZR2011EMQ015]
- Research Foundation for Excellent Young and Middle-aged Scientists of Shandong Province of China [BS2010CL010]
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Lead-free (Ba1-xCax)(Ti0.94Sn0.06)O-3 (BCST) (x = 0.01-0.04) ceramics were prepared using a solid-state reaction technique. The effects of Ca content on the phase structure and electrical properties of the BCST ceramics were investigated. High piezoelectric coefficient of d(33) = 440 pC/N, planar electromechanical coupling factor of k(p) = 45% and dielectric constant epsilon(r) = 6900 were obtained for the samples at x = 0.03. At room temperature, a polymorphic phase transition (PPT) from orthorhombic phase to tetragonal phase was identified in the composition range of 0.02 < x < 0.04. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.
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