The Ba_0.85Ca_0.15Zr_0.1Ti_0.9O₃ (BCZT) ceramics were successfully prepared by the sol-gel process and sintered at 1420 °C. The effect of sintering times (2, 4 and 6 h) on structural, microstructural, electric properties, energy storage, and electrocaloric effect was systematically examined. X-ray diffraction (XRD) results show that all the samples crystallize in the pure perovskite structure. The morphotropic phase transition from the tetragonal to the orthorhombic phase (T-O) was identified and confirmed by Rietveld refinement. The BCZT ceramic sintered at 1420 °C for 4 h possesses a good relative density of 98% and exhibits optimal properties with a high dielectric permittivity (ε_r,max) ~16310, a large electrocaloric effect coefficient (ξ) ~ 0.244Kmm/kV and a high energy storage efficiency of 63.65%.

通过溶胶-凝胶法成功制备了Ba _0.85 Ca _0.15 Zr _0.1 Ti _0.9 O ₃（BCZT）陶瓷，并在1420°C下烧结。系统地研究了烧结时间（2、4和6小时）对结构，微结构，电性能，能量存储和电热效应的影响。X射线衍射（XRD）结果表明，所有样品均以纯钙钛矿结构结晶。通过Rietveld精炼鉴定并确认了从四方相到正​​交晶相（TO）的相变相转变。在1420°C下烧结4 h的BCZT陶瓷具有98％的良好相对密度，并具有高介电常数（_εr，max）〜16310，大的电热效应系数（ξ）〜0.244Kmm / kV，高的储能效率为63.65％。