Abstract
ABSTRACTSr2Bi4Ti5O18 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°C for 3 h 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.
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