The influence of the processing on the electromechanical properties was investigated by analyzing the four samples with different phase compositions (Figure ): nominally stoichiometric BCZT containing CaTiO3 and the polytitanate phase ("BCZT"), A-site excess BCZT with CaTiO3 ("BCZT-A"), quenched nominally-stoichiometric BCZT with the polytitanate phase ("BCZT-Q"), and quenched A-site excess BCZT without any detectable secondary phases ("BCZT-A-Q"). The polarization loops, unipolar strain, and dielectric losses are depicted in Figure .