Effect of CeO 2 Addition on the Structure and Dielectric Properties of Ba x Sr 1-x TiO 3 -Based Glass Ceramics.

BaxSr1-xTiO3-(Ba-B-Al-Si-O) glass ceramics (BST-BBAS) with various amounts of CeO2added, were prepared via melt-quenching technique followed by controlled crystallization. X-ray diffraction reveals that the doping of CeO2restrains the impurity phase in the glassceramics. Besides, the dielectric breakdown strength increases to 1488kV/cm with 0.5 mol% CeO2content. Due to the combined effect of quite high breakdown strength and comparatively high dielectric constant, the energy storage density of 3.2 J/cm3was achieved in the glassceramics with 0.5 mol% CeO2, indicating that the CeO2added is an effective method to improve the energy storage density of BST-BBAS glass ceramics. [ABSTRACT FROM AUTHOR]