2023/06/11 by S. Khardazi, H. Zaitouni, Khardazi, S. +13 · 1 citation
Materials Science · Engineering · #Ferroelectric and Piezoelectric Materials #Microwave Dielectric Ceramics Synthesis #Perovskite Materials and Applications
paper · doi:10.48550/arxiv.2306.06793
Polycrystalline lead-free Ba0.85Ca0.15Zr0.10Ti0.90O3 (BCZT), BaTi0.89Sn0.11O3 (BTSn) and 0.4Ba0.85Ca0.15Zr0.10Ti0.90O3-0.6BaTi0.89Sn0.11O3 (0.4BCZT-0.6BTSn) ferroelectric ceramics were prepared via sol gel process and their structural, dielectric and energy storage properties were studied. Pure perovskite structure was confirmed by X ray diffraction analysis. The evolution of energy storage performances with temperature was studied. A Significant recoverable energy storage density of 137.86 mJ/cm3 and high energy-storage efficiency of 86.19% under a moderate electric field of 30 kV/cm were achieved in the composite 0.4BCZT 0.6BTSn ceramic at 353 ^∘K. Moreover, excellent temperature stability (70-130 ^∘C) of the energy storage efficiency (less than 3%) was achieved.