Synthesis and characterizations of NaNbO3 modified 0.92BaTiO3–0.08K0.5Bi0.5TiO3 ceramics for energy storage applications

Synthesis and characterizations of NaNbO3 modified 0.92BaTiO3–0.08K0.5Bi0.5TiO3 ceramics for... In this work, (1 − x)(0.92BaTiO3–0.08K0.5Bi0.5TiO3)–xNaNbO3 (0 ≤ x ≤ 0.08) [(1 − x)BTKBT–xNN] ceramics were prepared by using conventional solid state reaction method. Phase composition, microstructures, and energy storage properties were investigated. X-ray diffraction analysis for all samples showed that the tetragonal symmetry structure of the (1 − x)BTKBT–xNN ceramics. It was found that the tetragonal phase content decreases with increasing NN content. Variation of $${\text{V}^{\prime}_{\text{Na}}} - {\text{V}_{\text{O}}^{\cdot \cdot}} - {\text{V}^{\prime}_{\text{Na}}}$$ V Na ′ - V O · · - V Na ′ defect dipole concentration leads to the average grain size of the (1 − x)BTKBT–xNN ceramics reduces from 1.49 to 0.90 µm during sintering process. The 0.92BTKBT–0.08NN ceramic sample exhibits to processes the largest energy storage density of 1.96 J/cm3 with energy storage efficiency about 67.4% at breakdown strength 22 kV/mm. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science: Materials in Electronics Springer Journals

Synthesis and characterizations of NaNbO3 modified 0.92BaTiO3–0.08K0.5Bi0.5TiO3 ceramics for energy storage applications

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Materials Science; Optical and Electronic Materials; Characterization and Evaluation of Materials
ISSN
0957-4522
eISSN
1573-482X
D.O.I.
10.1007/s10854-017-8480-3
Publisher site
See Article on Publisher Site

Abstract

In this work, (1 − x)(0.92BaTiO3–0.08K0.5Bi0.5TiO3)–xNaNbO3 (0 ≤ x ≤ 0.08) [(1 − x)BTKBT–xNN] ceramics were prepared by using conventional solid state reaction method. Phase composition, microstructures, and energy storage properties were investigated. X-ray diffraction analysis for all samples showed that the tetragonal symmetry structure of the (1 − x)BTKBT–xNN ceramics. It was found that the tetragonal phase content decreases with increasing NN content. Variation of $${\text{V}^{\prime}_{\text{Na}}} - {\text{V}_{\text{O}}^{\cdot \cdot}} - {\text{V}^{\prime}_{\text{Na}}}$$ V Na ′ - V O · · - V Na ′ defect dipole concentration leads to the average grain size of the (1 − x)BTKBT–xNN ceramics reduces from 1.49 to 0.90 µm during sintering process. The 0.92BTKBT–0.08NN ceramic sample exhibits to processes the largest energy storage density of 1.96 J/cm3 with energy storage efficiency about 67.4% at breakdown strength 22 kV/mm.

Journal

Journal of Materials Science: Materials in ElectronicsSpringer Journals

Published: Jan 8, 2018

References

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