电植树
纳米复合材料
材料科学
环氧树脂
电介质
复合材料
拉曼光谱
树(集合论)
纳米颗粒
聚合物纳米复合材料
聚合物
局部放电
纳米技术
光电子学
电气工程
光学
电压
数学
数学分析
物理
工程类
作者
Moon Moon Bordeori,Nandini Gupta
出处
期刊:IEEE Transactions on Dielectrics and Electrical Insulation
[Institute of Electrical and Electronics Engineers]
日期:2024-02-01
卷期号:31 (1): 304-312
标识
DOI:10.1109/tdei.2023.3331337
摘要
In polymeric insulating materials, electrical treeing often precedes breakdown. Nanometric fillers in polymers have been reported to have a tree-retarding effect. In order to effectively use nanodielectrics as insulation, an in-depth understanding of the electrical tree growth mechanism in nanodielectrics is essential. The current work examines electrical tree growth in epoxy-based nanodielectrics. Computational analyses in conjunction with experimental data is used in this work to investigate the manner in which nano particles retard tree growth. A finite element-based model is used to computationally study the impact of nanoparticle inclusion, including their size and dielectric constant. Additionally, Raman spectroscopy, energy dispersive X-ray (EDX) and atomic force microscopy (AFM) are used to examine the effect of partial discharges inside tree channels, on tree growth.
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