Dielectric, piezoelectric and ferroelectric anisotropy in grain oriented Aurivillius phase Sr2Bi4Ti5O18 processed by the reactive templated technique

Shet, Tukaram and Varma, KBR (2016) Dielectric, piezoelectric and ferroelectric anisotropy in grain oriented Aurivillius phase Sr2Bi4Ti5O18 processed by the reactive templated technique. In: FERROELECTRICS, 502 (1). pp. 87-100.

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Abstract

Sr2Bi4Ti5O18 ceramics were fabricated using the pre-reacted Bi4Ti3O12 and SrTiO3 powders via solid-state reaction route. These in stoichiometric ratio were uniaxially pressed and sintered at 1130 degrees C for 3h to obtain textured ceramics. The obtained dense ceramics exhibited crystallographic anisotropy with prominent c-axis oriented grains (Lotgering factor of 0.62) parallel to the uniaxially pressed direction. The resulted anisotropy in the ceramic was attributed to the reactive template-like behavior of Bi4Ti3O12 that was used for making Sr2Bi4Ti5O18. Dielectric, ferro and piezoelectric properties measured on the ceramics in the direction perpendicular to the uniaxially pressed axis were found to be superior to that measured in the parallel direction.

Item Type:	Journal Article
Publication:	FERROELECTRICS
Additional Information:	Copy right for this article belongs to the TAYLOR & FRANCIS LTD, 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	30 Dec 2016 06:06
Last Modified:	30 Dec 2016 06:06
URI:	http://eprints.iisc.ac.in/id/eprint/55620

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