Preparation and energy storage properties of <001>-textured NaNbO_(3)-based ceramics  

作　　者：Zhengu Chen Fan Chang Gengguang Luo Li Ma Ju Chen Jinge Pei Zhenyong Cen Qin Feng Fujita Toyohisa Nengneng Luo 

机构地区：[1]School of Chemistry&Chemical Engineering,Guangxi University Nanning 530004,P.R.China [2]State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures School of Resources,Environment and Materials,Guangxi University,Nanning 530004,P.R.China

出　　处：《Journal of Advanced Dielectrics》2023年第4期69-75,共7页先进电介质学报（英文）

基　　金：financially supported by the National Natural Science Foundation of China(Grant Nos.52072080 and 11864004);the Guangxi Natural Science Fund for Distinguished Young Scholars(Grant No.2022GXNSFFA035034).

摘　　要：Dielectric materials with high energy storage density(Wrec)and efficiency(η)are expected for energy storage capacitors.In this work,<001>-textured Na0.7Bi0.1NbO_(3)(NBN)ceramics were prepared by a templated grain growth technique.The effects of microstructure and orientation degree on dielectric properties,polarization and energy storage performance were investigated.The textured ceramic with an optimized orientation degree(70%)showed a high Wrec of 2.4 J/cm^(3) andηof 85.6%.The excellent energy storage properties of textured ceramic originate from the co-effect of interfacial polarization and clamping effect.The results indicate that texture development is a potential candidate to optimize the energy storage properties of functional ceramics.

关 键 词：NaNbO_(3) ceramics grain orientation energy storage density dielectric capacitors 

分 类 号：TQ174.1[化学工程—陶瓷工业]