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Lead-free Ba0.85Ca0.15Zr0.10Ti0.90O3 (BCZT) ceramics have demonstratedexcellent dielectric, ferroelectric and piezoelectric properties in comparisonto lead-based materials. The synthesis of pure and crystalline BCZT nanopowdersat low temperatures of 25, 80 and 160 C was reported previously by using asol-gel method followed by a hydrothermal route. In this study, the structural,dielectric and ferroelectric properties of sintered BCZT ceramics at 1250{\deg}C for 10h were investigated. XRD measurements revealed the presence of asingle perovskite phase at room temperature with the coexistence of theorthorhombic and tetragonal symmetries. The increase of grain size and theceramic density in BCZT ceramics result in an enhancement of the dielectric andferroelectric properties of BCZT ceramics. More interestingly, the synthesistemperature of BCZT powders with high dielectric and ferroelectric propertiescould be decreased to a low temperature of 160 {\deg}C, which is about 1200{\deg}C lower when compared with solid-state reaction and 840 {\deg}C lowerwhen compared with sol-gel methods. The BCZT ceramics elaborated at 160 {\deg}Crevealed excellent electrical properties. Hence, the use of low-temperaturehydrothermal processing can be encouraging for the synthesis of lead-freeceramics with high dielectric and ferroelectric properties.

Structural, Dielectric and Ferroelectric Properties of Lead-free BCZT Ceramics Elaborated by Low-temperature Hydrothermal Processing