DocumentCode
1088801
Title
Zinc oxide varistors
Author
Eda, Kazuo
Author_Institution
Matsushita Electr. Ind. Co., Ltd., Osaka, Japan
Volume
5
Issue
6
fYear
1989
Firstpage
28
Lastpage
30
Abstract
An overview is given of zinc oxide varistors, which are made of semiconducting ceramics with highly nonohmic current-voltage characteristics, which originate at the grain boundaries. These varistors are widely utilized to protect electric power lines and electronic components against dangerous voltage surges. This overview covers electrical characteristics, fabrication methods, effects of additives, microstructures, the conduction mechanism, degradation, and applications.<>
Keywords
II-VI semiconductors; ceramics; grain boundaries; varistors; zinc compounds; additives; conduction mechanism; degradation; electric power lines; electrical characteristics; electronic components; fabrication; grain boundaries; nonohmic current-voltage characteristics; semiconducting ceramics; voltage surges; Ceramics; Current-voltage characteristics; Electronic components; Grain boundaries; Protection; Semiconductivity; Surges; Varistors; Voltage; Zinc oxide;
fLanguage
English
Journal_Title
Electrical Insulation Magazine, IEEE
Publisher
ieee
ISSN
0883-7554
Type
jour
DOI
10.1109/57.44606
Filename
44606
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