Enhanced surface flashover performance of oriented hexagonal boron nitride composites via anisotropic charge transportation

被引:1
|
作者
Zhang, Yingfan [1 ]
Wang, Haohuan [1 ]
Huang, Zhengyong [1 ]
Li, Jian [1 ]
机构
[1] Chongqing Univ, State Key Lab Power Transmiss Equipment Technol, Chongqing, Peoples R China
关键词
HIGH THERMAL-CONDUCTIVITY; INSULATION; POLYMER; BREAKDOWN; FILM;
D O I
10.1049/hve2.12411
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Surface flashover is a crucial issue for the miniaturisation of electronic facilities in military, industrial, and aerospace engineering. The oriented hexagonal boron nitride (hBN) composites, due to excellent thermal and electrical insulating properties, show a potential application in high-voltage power equipment, while the surface flashover performance of hBN composites dependent on oriented hBN texture is rarely reported. The effects of hBN orientation and contents on the surface flashover performances of oriented hBN composites are investigated. The isothermal surface potential decay of the oriented hBN composites was also studied. It is found that the charge transportation could be adjusted by the hBN orientation, thus regulating surface flashover strength. The DC flashover voltage of the in-plane oriented hBN composites with a thickness of 15 mu m reached the maximum of 27.6 kV at the hBN loading of 20 wt%, 14.5% higher than that of the pure resin. The carrier mobility of out-of-plane oriented hBN composites is about three times greater than that of the in-plane oriented composites, indicating that the charges are easily transported along the hBN basal plane. The larger carrier mobility causes charge dissipation in composites near the electrode at the hBN basal plane parallel to the axis of electrodes and inhibits the distortion of the surface electric field on the composites, thus enhancing the surface flashover. Consequently, developing oriented insulators for high-voltage applications and enabling an optimum insulation design would be beneficial because of the compactness and high reliability of power apparatus for use in power grids.
引用
收藏
页码:1011 / 1020
页数:10
相关论文
共 50 条
  • [1] Surface functionalization of hexagonal boron nitride and its effect on the structure and performance of composites
    Jin, Wenqin
    Zhang, Wei
    Gao, Yuwen
    Liang, Guozheng
    Gu, Aijuan
    Yuan, Li
    APPLIED SURFACE SCIENCE, 2013, 270 : 561 - 571
  • [2] Aluminium oxynitride-hexagonal boron nitride composites with anisotropic properties
    Wilk, Agnieszka
    Rutkowski, Pawel
    Zientara, Dariusz
    Bucko, Miroslaw M.
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2016, 36 (08) : 2087 - 2092
  • [3] Enhanced Thermal Properties of Silicone Composites with Hexagonal Boron Nitride
    Khanum, Khadija Kanwal
    Jayaram, Shesha
    2020 IEEE INDUSTRY APPLICATIONS SOCIETY ANNUAL MEETING, 2020,
  • [4] Enhanced thermal conductivity of photopolymerizable composites using surface modified hexagonal boron nitride fillers
    Goldin, Nir
    Dodiuk, Hanna
    Lewitus, Dan
    COMPOSITES SCIENCE AND TECHNOLOGY, 2017, 152 : 36 - 45
  • [5] Surface treatments of hexagonal boron nitride for thermal conductive epoxy composites
    Qi, Tianke
    Li, Yan
    Cheng, Yuanrong
    Xiao, Fei
    2014 15TH INTERNATIONAL CONFERENCE ON ELECTRONIC PACKAGING TECHNOLOGY (ICEPT), 2014, : 405 - 408
  • [6] Anisotropic charge carrier transport in free-standing hexagonal boron nitride thin films
    Dahal, Rajendra
    Ahmed, Kawser
    Wu, Jia Woei
    Weltz, Adam
    Lu, James Jian-Qiang
    Danon, Yaron
    Bhat, Ishwara B.
    APPLIED PHYSICS EXPRESS, 2016, 9 (06)
  • [7] Analytic modeling for the anisotropic thermal conductivity of polymer composites containing aligned hexagonal boron nitride
    Chen, Lin
    Sun, Ying-Ying
    Xu, Hong-Fei
    He, Shao-Jian
    Wei, Gao-Sheng
    Du, Xiao-Ze
    Lin, Jun
    COMPOSITES SCIENCE AND TECHNOLOGY, 2016, 122 : 42 - 49
  • [8] Enhanced thermal conductivity of polyarylene ether nitrile composites blending hexagonal boron nitride
    Zhu, Ying
    Luo, Yumeng
    Tang, Xiran
    Tong, Lifen
    Liu, Xiaobo
    JOURNAL OF APPLIED POLYMER SCIENCE, 2023, 140 (10)
  • [9] Large-Area Hexagonal Boron Nitride for Surface Enhanced Raman Spectroscopy
    Chugh, Dipankar
    Jagadish, Chennupati
    Tan, Hoe
    ADVANCED MATERIALS TECHNOLOGIES, 2019, 4 (08)
  • [10] Magnetic Alignment of Hexagonal Boron Nitride Platelets in Polymer Matrix: Toward High Performance Anisotropic Polymer Composites for Electronic Encapsulation
    Lin, Ziyin
    Liu, Yan
    Raghavan, Sathyanarayanan
    Moon, Kyoung-sik
    Sitaraman, Suresh K.
    Wong, Ching-ping
    ACS APPLIED MATERIALS & INTERFACES, 2013, 5 (15) : 7633 - 7640