To upgrade integrated piezoelectric properties of lead-free ceramics, (Ba_0.85Ca_0.15)(Ti_0.9Zr_0.08Sn_0.02)O₃-SrTiO₃ ceramics were successfully fabricated by the tape casting method and microwave sintering (MWS) techniques. The experimental results show that rhombohedral-orthorhombic-tetragonal(R-O-T) multiphases coexist in the samples, and excellent piezoelectric performance of the ceramics (d₃₃ = 398 pC/N, Pr = 3.90 µC/cm², Ec = 3.43 kV/cm, tanδ = 4.8%, ε_r = 7791, and Tc = 82 °C, respectively) is obtained under 1300 °C for 1 h. The template of ST, prepared through molten-salt two-step method, can guide the grains to grow in the < 001 > direction.

为了提高无铅陶瓷的综合压电性能，通过流延铸造法和微波烧结（MWS）技术成功制备了（Ba _0.85 Ca _0.15）（Ti _0.9 Zr _0.08 Sn _0.02）O ₃ -SrTiO ₃陶瓷。实验结果表明，样品中共混有菱形-斜方-斜方-四方（ROT）多相，并且陶瓷具有出色的压电性能（d ₃₃  = 398 pC / N，Pr  = 3.90 µC / cm ²，Ec  = 3.43 kV / cm，黄褐色δ  = 4.8％，ε _{- [R}  = 7791，和 分别在1300°C和1 h下获得Tc = 82°C。通过熔融盐两步法制备的ST模板可以引导晶粒向<001>方向生长。