The (Ba,Ca)(Zr,Ti)O3 system (BCZT), i.e., barium titanate isovalently substituted with Ca and Zr on the A-and B-sites, respectively, has first been explored in 1954 as a capacitor material . The research interest was revived when a range of compositions with promising piezoelectric properties were reported in 2009 . Since then, d33 piezoelectric coefficients of over 600 pC/N have been recorded for compositions near the polymorphic phase boundaries but the reported values vary vastly.