Electrical properties of ZnO/alumina nano composites for high voltage transmission line insulator

被引：9
|
作者：
El-Mehalawy, N. [1 ]
Awaad, M. [1 ]
Eliyan, T. [2 ]
Abd-Allah, M. A. [2 ]
Naga, S. M. [1 ]
机构：
[1] Natl Res Ctr, Ceram Dept, El Bohous Str, Cairo 12622, Egypt
[2] Benha Univ, Fac Engn, Banha, Egypt
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2018年 / 29卷 / 16期
关键词：
MICROWAVE DIELECTRIC-PROPERTIES; DOPED ZNO CERAMICS; COMBUSTION SYNTHESIS; ALUMINA POWDER; OXIDE; DENSIFICATION; ABSORPTION; MICROSTRUCTURE; PERMITTIVITY; PRESSURE;
D O I：
10.1007/s10854-018-9480-7
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The main aim of the present study is to evaluate the impact of the nano-ZnO on the dielectric properties of alumina bodies used in high voltage insulators. In this work, Zinc oxide/alumina nanocomposites were prepared by sol-gel method. The ratios of ZnO were 5, 6 and 7 mass %. The effect of ZnO on the densification, microstructure, mechanical and electrical properties of the prepared bodies were evaluated after sintering at a temperature ranging from 1550 to 1750 A degrees C. Results revealed that incorporation of 7 mass % ZnO enhanced the breakdown voltage, electric resistivity and the dielectric loss, which are the most important factors to evaluate high-voltage insulators. In addition, incorporation of 7 mass % ZnO enhanced the densification and mechanical properties of the alumina nano composites .
引用
收藏
页码：13526 / 13533
页数：8
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