Large piezoelectric properties was observed in (1-x)BZT-(x)BCT where x=0.5 or Ba0.85Ca0.15Ti0.9Zr0.1O3 (denoted as BCZT), leading to a promising candidate for lead-free materials. However, phase formation of the BCZT is controversial and still unclear since various coexistences were identified literatures, instances, mixed phases rhombohedral-tetragonal (R-T), ortho-rhombic-tetragonal (O-T) rho...