Origin of ferroelectric P-E loop in cubic compositions and structure of poled (1-x)Bi(Mg1/2Zr1/2)O-3-xPbTiO(3) piezoceramics

Upadhyay, Ashutosh and Pandey, Rishikesh and Singh, Akhilesh Kumar (2017) Origin of ferroelectric P-E loop in cubic compositions and structure of poled (1-x)Bi(Mg1/2Zr1/2)O-3-xPbTiO(3) piezoceramics. In: JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 100 (4). pp. 1743-1750.

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Abstract

Structural analysis of electrically poled samples of polycrystalline, (1-x)Bi(Mg1/2Zr1/2)O-3-xPbTiO(3) piezoceramics across morphotropic phase boundary reveals electric field-induced cubic to tetragonal phase transition and significant domain reorientation in tetragonal and two-phase compositions. The c-axis domain elongation is observed for tetragonal compositions after poling. The morphotropic phase boundary composition, having coexisting cubic and tetragonal phases in the unpoled state, exhibits alteration in relative proportion of the two phases, in addition to domain extension and reorientation along c-axis. For the morphotropic phase boundary composition, the tetragonality (c/a) is enhanced with significantly large c-axis strain (similar to 0.92%) in tetragonal phase after poling. Origin of ferroelectric P-E loop in cubic compositions is linked with the electric field-induced phase transition.

Item Type:	Journal Article
Publication:	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Publisher:	WILEY, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
Additional Information:	Copy right for this article belongs to the WILEY, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	20 May 2017 07:02
Last Modified:	20 May 2017 07:02
URI:	http://eprints.iisc.ac.in/id/eprint/56959

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