Correlation between structure and Rayleigh parameters in the lead-free piezoceramic (1-x)Ba(Ti0.88Sn0.12)O-3-x(Ba0.7Ca0.3)TiO3

Abebe, Mulualem and Brajesh, Kumar and Ranjan, Rajeev (2017) Correlation between structure and Rayleigh parameters in the lead-free piezoceramic (1-x)Ba(Ti0.88Sn0.12)O-3-x(Ba0.7Ca0.3)TiO3. In: JOURNAL OF APPLIED PHYSICS, 122 (3).

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Abstract

Composition dependent Rayleigh and structural analysis was carried out on lead-free piezoceramics (1-x)(BaTi0.88Sn0.12)-x(Ba0.7Ca0.3) TiO3 at room temperature. The system exhibits a tetragonal (P4mm) structure for x > 0.21, rhombohedral (R3m) for x < 0.13, and orthorhombic (Amm2) for 0.13 < x < 0.21. Rayleigh analysis suggests that the irreversible contribution to the dielectric response is enhanced in the single phase orthorhombic compositions in the vicinity of the R3m-Amm2 and Amm2-P4mm phase boundaries, and not in compositions exhibiting phase coexistences (x = 0.12 and 0.22). We also found a correspondence between the irreversible Rayleigh parameter and the coercive field in this system. Published by AIP Publishing.

Item Type:	Journal Article
Publication:	JOURNAL OF APPLIED PHYSICS
Additional Information:	Copy right for this article belongs to the AMER INST PHYSICS, 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	16 Aug 2017 06:34
Last Modified:	16 Aug 2017 06:34
URI:	http://eprints.iisc.ac.in/id/eprint/57643

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