| ZnO压敏陶瓷与有机绝缘材料间界面电荷及其作用 |
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| 引用本文： | 李盛涛,刘辅宜,李博,大木羲路.ZnO压敏陶瓷与有机绝缘材料间界面电荷及其作用[J].材料研究学报,1997,11(5):479-482. |
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| 作者姓名： | 李盛涛 刘辅宜 李博 大木羲路 |
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| 作者单位： | 西安交通大学电气工程学院!西安市，710049，西安交通大学，西安交通大学，早稻田大学 |
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| 基金项目： | 国家自然科学基金!59507005，电力设备电气绝缘国家重点实验室和日本学术振兴会(PS95785)资助 |
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| 摘 要： | 用热刺激电流和电声脉冲法研究了ＺｎＯ压敏陶瓷与绝缘材料间界面电荷分布。发现绝缘材料显著地影响界面电荷性质和密度，压敏陶瓷酯型聚氨酯界面存在大是电荷，而压敏陶瓷与聚酯改性有机硅界而没有电荷。
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| 关 键 词： | 压敏陶瓷 绝缘保材料 界面电荷 闪络电压 |
| 收稿时间： | 1997-10-25 |
| 修稿时间： | 1997-10-25 |
INTERFACIAL CHARGE BETWEEN ZnO VARISTOR CERAMICS AND INORGANIC INSULATING MATERIALS AND ITS ROLE |
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| LI Shengtao,LIU Fuyi,LI Bo OHKI,Yoshimichi.INTERFACIAL CHARGE BETWEEN ZnO VARISTOR CERAMICS AND INORGANIC INSULATING MATERIALS AND ITS ROLE[J].Chinese Journal of Materials Research,1997,11(5):479-482. |
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| Authors: | LI Shengtao LIU Fuyi LI Bo OHKI Yoshimichi |
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| Affiliation: | LI Shengtao; LIU Fuyi; LI Bo OHKI; Yoshimichi (Xi'an Jiaotong University) (Waseda University) |
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| Abstract: | The interfacial charge distribution between ZnO varistor ceramics and inorganic insulating materials was investigated by means of thermally stimulated current and pulsed electroacoustic methods. It was found that the interfacial charge density depends largely on inorganic insulating materials, a largeamount of charges exist at the interface between ZnO varistor ceramics and polyester polyurethane, but almost no charge exists at the interface between ceramics and polyester modified silicone. The interfacial charges that exist between ZnO varistor ceramics and inorganic coating lower largely the steep impulse flashovervoltage of ZnO varistor blocks. |
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| Keywords: | varistor ceramics insulating coating materials interfacial charge flashover voltage |
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