Charge-discharge breakdown of dielectric ceramic

Author

Haishan, Sun ; Shoutian, Chen

Author_Institution

Northwest Electr. Power Test & Res. Inst., Xian, China

Volume

2

fYear

2000

fDate

2000

Firstpage

1029

Abstract

The breakdown behavior of high-voltage dielectric ceramics experiencing long-time charge and discharge cycles is not the same as its short-time breakdown behavior. In our study, it was found that there are about four types of breakdown and various factors such as test voltage, ceramic Curie temperature, epoxy encapsulation, and interface treatments affect the charge-discharge life. The charge-discharge breakdown of high-voltage ceramics is considered mainly a mechanical fatigue failure due to electrostriction, and a simple mathematical model was deduced from this idea

Keywords

barium compounds; ceramic capacitors; electric breakdown; electrostriction; ferroelectric Curie temperature; ferroelectric ceramics; flashover; high-voltage engineering; BaTiO₃; breakdown behavior; ceramic Curie temperature; ceramic capacitor; charge-discharge breakdown; charge-discharge life; electrostriction; epoxy encapsulation; high-voltage dielectric ceramics; interface flashover; interface treatment; life model; long-time charge/discharge cycles; mathematical model; mechanical fatigue failure; test voltage; Breakdown voltage; Ceramics; Dielectric breakdown; Electric breakdown; Electrostriction; Encapsulation; Fatigue; Life testing; Mathematical model; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 2000. Proceedings of the 6th International Conference on

Conference_Location

Xi´an

Print_ISBN

0-7803-5459-1

Type

conf

DOI

10.1109/ICPADM.2000.876408

Filename

876408