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Effect of SiO2 Films with Different Thickness Deposited on Copper Electrode Surface for Insulation Properties of Propylene Carbonate
IEEE Transactions on Dielectrics and Electrical Insulation ( IF 2.9 ) Pub Date : 2021-04-16 , DOI: 10.1109/tdei.2020.009300
Zhaotian Zhang 1 , Qing Yang 1 , Shilin Wu 1
Affiliation  

In this work, 100, 200, and 400 nm SiO2 films are deposited on the electrode surface by magnetron sputtering, and the effect of film thickness on the insulation performance of propylene carbonate is studied. We use the Weibull distribution to calculate the breakdown voltage of propylene carbonate under different conditions. Space charge distribution of the liquid is measured based on the Kerr effect. Test results show that the breakdown voltage of propylene carbonate increases from 8.4 to 18.7% with increasing film thickness compared with the case where the SiO2 film is not deposited. Bipolar injection mode of space charge is not affected by the increase of SiO2 film thickness, but the amount of space charge injection is significantly reduced. The thicker the SiO2 film deposited on the electrode surface, the higher the ratio of increasing the breakdown voltage of propylene carbonate, but the smaller the magnitude of the increase.

中文翻译:


铜电极表面沉积不同厚度的SiO2薄膜对碳酸丙烯酯绝缘性能的影响



本工作通过磁控溅射在电极表面沉积100、200和400 nm的SiO2薄膜,研究了薄膜厚度对碳酸丙烯酯绝缘性能的影响。我们使用威布尔分布计算了碳酸丙烯酯在不同条件下的击穿电压。基于克尔效应测量液体的空间电荷分布。测试结果表明,与未沉积SiO2膜的情况相比,随着膜厚度的增加,碳酸亚丙酯的击穿电压从8.4%增加到18.7%。空间电荷的双极注入方式不受SiO2膜厚增加的影响,但空间电荷注入量明显减少。电极表面沉积的SiO2薄膜越厚,碳酸丙烯酯击穿电压增加的比例越高,但增加的幅度越小。
更新日期:2021-04-16
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