三相SiC/CNTs/环氧复合材料的非线性电压电流特性

Wang Jian, Yanbin Shen, S. Luo, Wenhu Yang, Shuhui Yu, R. Sun, C. Wong
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引用次数: 0

摘要

研究了用于高压场级配的三相SiC/CNTs/环氧复合材料的非线性I-V行为,提出了复合材料体跳变机理。假设通过CNTs和SiC颗粒之间的薄环氧层发生了最近邻电子跳变,不对称矩形势垒结构是控制三相SiC/CNTs/环氧复合材料非线性电响应的机制。与CNTs/环氧树脂相比,三相SiC/CNTs/环氧复合材料的I-V行为具有更好的再现性。
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The nonlinear voltage-current characteristics of three-phase SiC/CNTs/epoxy composite
The nonlinear I-V behavior of the three-phase SiC/CNTs/epoxy composites for high voltage field grading application was investigated, and a composite bulk hopping mechanism was proposed. It is hypothesized that nearest-neighbor electronic hopping occurs through thin epoxy layers between CNTs and SiC particles, and an asymmetric rectangular potential barrier structure is the mechanism governing the nonlinear electric response of the three-phase SiC/CNTs/epoxy composites. Compared with CNTs/epoxy, the I-V behavior of the three-phase SiC/CNTs/epoxy composites exhibited much better reproducibility.
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