Authors: M Chandrasekhar P Kumar
Publish Date: 2017/02/20
Volume: 38, Issue: 1, Pages: 111-118
Abstract
Leadfree 1x 0934BNT007KNNx SrTiO3/BNTKNNST ceramics with x = 0 004 008 012 and 016 were synthesized in single perovskite phase by conventional solid state reaction route Effect of SrTiO3 modification on phase microstructure dielectric electric field induced polarization electric field induced strain and energystorage properties were investigated and discussed in detail Dielectric study confirmed relaxor nature with a drastic decrease of T c with the increase of SrTiO3 content in BNTKNNST system Saturation polarization remnant polarization coercive field E c and maximum induced strain decreased with the increase of SrTiO3 content in BNTKNNST system High recoverable energy storage density of ~059 J/cm 3 with energy storage efficiency of ~64 were obtained in x = 016 ceramic samples which suggested its usefulness for energystorage capacitor applications
Keywords: