A tunable B-site doping SBT-BNT-SMN ceramic composite with high recoverable energy density and temperature stability

We synthesize a group of three-phase ferroelectric ceramics 0.35(Sr0.7Bi0.2) TiO3–0.65(Bi0.5Na0.5)TiO3–xSr(Mg1/3Nb2/3)O3 (BST–BNT–xSMN) using conventional solid-phase sintering method. When tunning the volume of SMN to 0.01, the ceramic sheet shows homogeneous microcrystal grains and highly dense crystal morphology, which favors a reductive dielectric permittivity (er) of 2250 and loss of 0.05. Under a high electric field of 100 kV cm−1, the...