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- Title
Structure and dielectric properties of NBT-xBT-ST lead-free ceramics for energy storage.
- Authors
Luo, Wen-Qin; Shen, Zong-Yang; Yu, Yuan-Ying; Song, Fu-Sheng; Wang, Zhu-Mei; Li, Yue-Ming
- Abstract
(0. 7 4 − x)(Na 0. 5 Bi 0. 5 )TiO3- x BaTiO3-0.26SrTiO3 (x = 0 ∼ 0. 1) (abbreviated as NBT- x BT-ST) lead-free ceramics were fabricated by a solid-state reaction method. The effect of Ba doping amount x on the structure and energy storage properties of NBT- x BT-ST ceramics were investigated. All the NBT- x BT-ST ceramics showed single perovskite structure with a pseudocubic phase. Ba doping effectively suppressed grain growth, in favor of forming small and uniform grains. The ceramics with a composition of x = 0. 0 4 , an optimized energy storage density (γ = 0. 4 7 J/cm3) and efficiency (η = 4 8. 6 7 %), under an applied electric field of 50 kV/cm, should be a candidate for solid-state compact pulsed power capacitor materials.
- Publication
Journal of Advanced Dielectrics, 2018, Vol 8, Issue 6, pN.PAG
- ISSN
2010-135X
- Publication type
Article
- DOI
10.1142/S2010135X18200047