Impact of tin substitution on the structural, dielectric, ferroelectric and piezoelectric properties of Ba0.98Ca0.02TiO3 ceramics
authors Ramovatar; Coondoo, I; Satapathy, S; Panwar, N
nationality International
author keywords Lead-free compounds; Dielectrics; Piezoelectrics; Ferroelectrics
abstract For the first time, effect of fin (Sn) substitution on the structural, ferroelectric, dielectric and piezoelectric properties of lead-free Ba0.98Ca0.02Ti1-xSnO3 (BCST) compounds with 'x' = 0-0.05 mol % was investigated systematically. Room temperature x-ray diffraction (XRD) analysis revealed the tetragonal phase in the composition range 0 <= x <= 0.03 and co-existence of tetragonal and orthorhombic phases for 'x' = 0.05 composition. The experimental density varied between 95 and 97% of the theoretical density. The Curie temperature (T-C) exhibited a declining trend from 125 degrees C to 102 degrees C with increasing Sn content. The orthorhombic to tetragonal phase transition (TO-T) was observed close to 39 degrees C for Sn doped compound with 'x' = 0.05. Further, the best electrical properties (2P(r) similar to 16.6 mu C/cm(2), epsilon(m) similar to 9063 and d(33) similar to 290 pC/N) were observed for BCST compound doped with 'x' = 0.03 proving it an optimal composition among the studied ceramics.
publisher ELSEVIER
issn 0921-4526
isbn 1873-2135
year published 2019
volume 553
beginning page 68
ending page 75
digital object identifier (doi) 10.1016/j.physb.2018.10.039
web of science category Physics, Condensed Matter
subject category Physics
unique article identifier WOS:000450602300012
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