Al2O3/环氧纳米复合材料的脉冲真空闪络

2008 International Symposium on Electrical Insulating Materials (ISEIM 2008) Pub Date : 2008-10-31 DOI:10.1109/ISEIM.2008.4664437

Chen Yu, Cheng Yonghong, Zhou Jiabin, Wang Zengbin, Wu Kai, T. Tanaka

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引用次数: 9

摘要

研究纳秒脉冲作用下绝缘材料的真空表面闪络机理对大功率脉冲发生器的设计和制造具有重要意义。研究了不同重量比例的纳米填料填充Al2O3/环氧纳米复合材料的真空表面闪络特性。利用单极脉冲发生器(上升时间为20 ns，最大半宽为800 ns)研究了Al2O3/环氧纳米复合材料的闪络特性。此外，还测量了热激去极化电流(TSDC)。实验结果可以用浅圈闭和深圈闭的不同效果来解释。

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Pulsed vacuum flashover of Al2O3/epoxy nanocomposite

Research on vacuum surface flashover mechanisms of insulating material under nanosecond pulses is important for the design and manufacture of high power pulse generators. This paper studies the vacuum surface flashover characteristic of Al2O3/epoxy nanocomposite filled with different weight proportion of nano-filler. By using a unipolar pulse generator (20 ns rise time and 800 ns full width at half maximum), the flashover characteristic of Al2O3/epoxy nanocomposite is investigated. In addition, the thermally stimulated depolarization current (TSDC) is measured. The experimental results can be explained in terms of the different effects of shallow and deep traps.

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2008 International Symposium on Electrical Insulating Materials (ISEIM 2008)

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