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Effects of CuO additive on the dielectric property and energy-storage performance of BaTiO3-SiO2 ceramic-glass composite

CuO was used as an additive in BaTiO3-SiO2 ceramic-glass composites sintered from SiO2-coated BaTiO3 nanoparticles. The effects of the CuO content on the microstructure, phase composition, dielectric property, and energy-storage performance were investigated. The porosity of the composites was obviously reduced by the addition of CuO. All the composites suggested a perovskite phase. The maximal polarization, remnant polarization, and dielectric breakdown strength were strongly dependent on the CuO content. A maximal discharged energy density of 1.43?J/cm3 with a charge-discharge efficiency of 53% was achieved in the composite with 2.0?mol% CuO, which was enhanced by about 4 times as compared with that of the pure BaTiO3-SiO2 composite.

» Author: Xu Lu, Lin Zhang, Hossein Talebinezhad, Yang Tong, Z.-Y. Cheng

» Reference: 10.1016/j.ceramint.2018.06.139

» Publication Date: 01/10/2018

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This project has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n° [609149].

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