Field-dependent electric conductivities of silicone rubbers deduced from measured currents and surface potential decay characteristics

被引：6

作者：

Alam, Shahid ^{[1
]}

Serdyuk, Yuriy V. ^{[1
]}

Gubanski, Stanislaw M. ^{[1
]}

机构：

[1] Chalmers Univ Technol, Dept Elect Engn, Gothenburg, Sweden

来源：

INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION | 2019年 / 24卷 / 01期

关键词：

Silicone rubber; electric conductivity; charging current; surface potential decay; SPACE-CHARGE; INSULATOR;

D O I：

10.1080/1023666X.2018.1516369

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Measurements of DC electric conductivities of four types of silicone rubber-based polymers for use in high voltage insulation systems of power components are reported. The field dependences of the conductivities obtained by two different techniques, namely by utilizing steady-state currents through materials' samples placed between metallic electrodes and by employing surface potential decay characteristics in an open circuit configuration, are compared and discussed. It is shown that the surface potential decay technique allows for a wider range of electric field strength and reduces the time span of the measurements.

引用

页码：54 / 62

页数：9

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