(1–x)BiMg_0.5Ti_0.5O₃−xBiZn_0.5Ti_0.5O₃ [(1−x)BMT–xBZT] ceramics of perovskite solid solutions, in which BMT and BZT are lead-free structural analogs of PbZrO₃ and PbTiO₃, respectively, have been synthesized under high pressure. It was found that the as-prepared compositions with a relative BZT content of <75 mol% are orthorhombic (space group Pnnm), while those with a BZT content above this value are tetragonal (P4mm). In the solution with x = 0.75, both phases coexist forming a morphotropic phase boundary (MPB). The compositional dependence of the normalized unit cell volume exhibits a ∼5% jump at x = 0.75. At the same time, the microstructure of the obtained (1–x)BMT−xBZT ceramics shows no particular variation with the chemical composition over MPB. Piezoresponse force microscopy measurements indicate the ferroelectric state of the studied materials and allowed one to estimate their intrinsic piezoelectric coefficients.

(1– x )BiMg _0.5 Ti _0.5 O ₃ − x BiZn _0.5 Ti _0.5 O ₃ [(1− x )BMT– x BZT] 钙钛矿固溶体陶瓷，其中 BMT 和 BZT 是 PbZrO ₃的无铅结构类似物和PbTiO ₃分别是在高压下合成的。发现所制备的相对 BZT 含量 <75 mol% 的组合物是正交的（空间群Pnnm），而那些 BZT 含量高于该值的组合物是四方的（P 4 mm）。在x的解中 = 0.75，两相共存形成同形相界（MPB）。归一化晶胞体积的成分依赖性在x  = 0.75处有 5% 的跳跃。同时，所获得的 (1- x )BMT- x BZT 陶瓷的微观结构与 MPB 上的化学成分没有特别的变化。压电响应力显微镜测量表明所研究材料的铁电状态，并允许人们估计它们的固有压电系数。