Reduction of space charge breakdown in e-beam irradiated nano/polymethyl methacrylate composites
Reduction of space charge breakdown in e-beam irradiated nano/polymethyl methacrylate composites
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DOI：
10.1063/1.4773916
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发表时间：
2013-01
影响因子：
4
通讯作者：
F. Zheng;Jian-Xin Dong;Yewen Zhang;Z. An;Q. Lei
中科院分区：
文献类型：
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作者：
F. Zheng;Jian-Xin Dong;Yewen Zhang;Z. An;Q. Lei
介质材料中大量空间电荷的快速放电会引起空间电荷击穿。这封信报告的纳米粒子的作用，影响纳米/聚甲基丙烯酸甲酯复合材料的空间电荷击穿。用压力波传播法测量了电子束注入复合材料中的空间电荷分布。结果表明，纳米粒子对复合材料的等温电荷衰减和空间电荷击穿有显著影响。在纳米复合材料中的空间电荷击穿的电阻归因于深陷阱态的引入和添加的纳米粒子的散射效应的综合作用。
Fast discharge of numerous space charges in dielectric materials can cause space charge breakdown. This letter reports the role of nanoparticles in affecting space charge breakdown of nano/polymethyl methacrylate composites. Space charge distributions in the composites, implanted by electron beam irradiation, were measured by pressure wave propagation method. The results show that the nanoparticles have significant effects on the isothermal charge decay and space charge breakdown in the nanocomposites. The resistance to space charge breakdown in the nanocomposites is attributed to the combined action of the introduction of deep trapping states and the scattering effect by the added nanoparticles.