Significantly enhanced breakdown strength and energy density in sandwich-it structured NBT/PVDF composites with strong interface barrier effect

被引:15
|
作者
Nian, Wenwen [1 ]
Wang, Zhuo [1 ]
Wang, Tian [1 ]
Xiao, Yujia [1 ]
Chen, Haonan [1 ]
机构
[1] Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xian 710021, Shaanxi, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Sandwich-structured NBT/PVDF composites; Energy density; Conductive paths; POLYMER;
D O I
10.1016/j.ceramint.2018.08.260
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The sandwich-structured composites comprised of two outer layers of NBT dispersed in a PVDF matrix to provide high dielectric constant (epsilon') and a middle layer of pure PVDF to offer high breakdown strength (E-b) are prepared by a solution casting layer-by-layer process. Experimental results indicate that the E-b and energy density (U) of sandwich-structured composites are improved significantly via tailoring the contents of NBT fillers. The sandwich-structured composites with optimized filler content result in enhanced E-b of 410kV/mm with a high saturate electric displacement of 14.49 mu C/cm(2), and thus an impressive U of 12.5J/cm(3) is obtained. Moreover, compared with single-layer composites, sandwich-structured composites exhibit the higher E-b and U. It can be explained that sandwich-structured composites prevent the formation of conductive paths due to strong interface barrier effect of between the outer layer and middle layer. In addition, the breakdown behavior of single-layer and sandwich-structured composites are understood by employing the impedance spectroscopy technique
引用
收藏
页码:S50 / S53
页数:4
相关论文
共 50 条
  • [41] Significant enhancement in breakdown strength and energy density of the BaTiO3/BaTiO3@SiO2 layered ceramics with strong interface blocking effect
    Yuan, Qibin
    Cui, Jin
    Wang, Yifei
    Ma, Rong
    Wang, Hong
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2017, 37 (15) : 4645 - 4652
  • [42] Ultrahigh electric displacement and energy density in gradient layer-structured BaTiO3/PVDF nanocomposites with an interfacial barrier effect
    Wang, Yifei
    Wang, Linxi
    Yuan, Qibin
    Niu, Yujuan
    Chen, Jie
    Wang, Qing
    Wang, Hong
    JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (22) : 10849 - 10855
  • [43] High Energy Storage Density of Sandwich-Structured Na0.5Bi0.5TiO3/PVDF Nanocomposites Enhanced by Optimizing the Dimensions of Fillers
    Yi, Zhihui
    Wang, Zhuo
    Nian, Wenwen
    Wang, Tian
    Chen, Haonan
    Cheng, Zhongyang
    ACS APPLIED ENERGY MATERIALS, 2021, 4 (12) : 13528 - 13537
  • [44] Enhanced breakdown strength and energy density of multilayered P (VDF-HFP)/Nd-doped BaTiO3 nanofibers composites
    Wang, Jing
    Yang, Zhong
    Jiang, Jianyong
    Deng, Chaoyong
    Zhu, Kongjun
    CHEMICAL ENGINEERING JOURNAL, 2022, 427
  • [45] Highly enhanced dielectric strength and energy storage density in hydantoin@BaTiO3-P(VDF-HFP) composites with a sandwich-structure
    Luo, Hang
    Zhang, Dou
    Wang, Lu
    Chen, Chao
    Zhou, Jing
    Zhou, Kechao
    RSC ADVANCES, 2015, 5 (65): : 52809 - 52816
  • [46] TiO2/Ca9Al(PO4)7 composites with enhanced dielectric breakdown strength and energy storage density
    Xu, Wei
    Li, Zhendong
    Zhong, Mingfeng
    Zhang, Chenyang
    Xu, Leiyi
    Li, Huimin
    Sheng, Yongjian
    Zhang, Zhijie
    Hu, Chunyuan
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2022, 33 (15) : 11783 - 11793
  • [47] TiO2/Ca9Al(PO4)7 composites with enhanced dielectric breakdown strength and energy storage density
    Wei Xu
    Zhendong Li
    Mingfeng Zhong
    Chenyang Zhang
    Leiyi Xu
    Huimin Li
    Yongjian Sheng
    Zhijie Zhang
    Chunyuan Hu
    Journal of Materials Science: Materials in Electronics, 2022, 33 : 11783 - 11793
  • [48] A rational design for reconciling high permittivity and breakdown strength in layered PVDF composites from TaB2@Ta2O5 nanofiller induced Schottky barrier effect
    Deng, Qihuang
    Wu, Qin
    Feng, Yefeng
    Peng, Cheng
    Qin, Ben
    Li, Xiaoxiao
    Zhu, Qiuyin
    Xu, Zhichao
    JOURNAL OF MATERIALS CHEMISTRY C, 2019, 7 (32) : 9975 - 9983
  • [49] Significantly enhanced breakdown field for core-shell structured poly(vinylidene fluoride-hexafluoropropylene)/TiO2 nanocomposites for ultra-high energy density capacitor applications
    Wang, Chenchen
    Zhang, Jinxi
    Gong, Shaobo
    Ren, Kailiang
    JOURNAL OF APPLIED PHYSICS, 2018, 124 (15)
  • [50] Significantly enhanced energy storage density of sandwich-structured (Na0.5Bi0.5)0.93Ba0.07TiO3/P(VDF-HFP) composites induced by PVP-modified two-dimensional platelets
    Jiang, Chao
    Zhang, Dou
    Zhou, Kechao
    Zhou, Xuefan
    Luo, Hang
    Abrahams, Isaac
    JOURNAL OF MATERIALS CHEMISTRY A, 2016, 4 (46) : 18050 - 18059