钛酸钡(BaTiO/ sub3 /)添加剂对聚乙烯空间电荷形成的影响

Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93) Pub Date : 1993-10-17 DOI:10.1109/CEIDP.1993.378983

A. Cherifi, A. Toureille, J. Reboul, M. Khalil

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引用次数: 2

摘要

采用热步进技术研究了5% Wt BaTiO/sub - 3添加剂和电极材料对低密度聚乙烯(LDPE)中空间电荷形成和电场分布的影响。空间电荷在高压直流(HVDC)条件下形成，平均电场约为28 kV/mm，温度为50/spl℃。结果表明:与普通材料相比，BaTiO/sub 3/的加入显著降低了LDPE的剩余空间电荷和电场，改变了它们在掺杂材料中的分布模式;结果还表明，普通LDPE的剩余空间电荷和电场与电极材料的类型有关。用金电极制备的样品中剩余空间电荷的密度比用铝电极制备的样品高得多，其分布也不同。两种情况下的剩余场分布也不同。

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Influence of barium titanate (BaTiO/sub 3/) additive on space charge formation in polyethylene

The effect of 5% Wt BaTiO/sub 3/ additive and electrode material on space charge formation and electric field distribution in low-density polyethylene (LDPE) was investigated using the thermal step technique. Space charge was formed under high-voltage direct-current (HVDC) conditions at an average field of about 28 kV/mm and a temperature of 50/spl deg/C. Results indicate that the addition of BaTiO/sub 3/ to LDPE considerably reduced the remanent space charge and electric field, and changed their distribution patterns in the doped material compared with the plain material. It is also shown that the remanent space charge and electric field in plain LDPE are dependent on the type of electrode material. The density of the remanent space charge in the sample with gold electrodes is much higher and its distribution is different, than the sample with aluminum electrodes. The remanent field distributions in the two cases are also different.<>

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Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93)

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