  The Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) ceramics were successfully prepared by
sol-gel process, and sintered at 1420 degree. 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 degree for 4h possesses a good relative density of 98%, and
exhibits optimal properties with a high dielectric permittivity ~16310, a large
electrocaloric effect coefficient ~ 0.244Kmm/kV and an energy density storage
of ~ 10.61 mJ/cm3.
