Interfacial charge between ZnO varistor ceramics and inorganic insulating materials and its role

Shengtao Li, Fuyi Liu, Bo Li, Yoshimichi Ohki

Research output: Contribution to journalArticle

1 Citation (Scopus)

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 large amount 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 flashover voltage of ZnO varistor blocks.

Original languageEnglish
Pages (from-to)479-482
Number of pages4
JournalCailiao Yanjiu Xuebao/Chinese Journal of Materials Research
Volume11
Issue number5
Publication statusPublished - 1997 Oct
Externally publishedYes

Fingerprint

Varistors
Insulating materials
Polyesters
Inorganic coatings
Flashover
Polyurethanes
Ceramic coatings
Charge distribution
Silicones
Charge density
Electric potential

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Metals and Alloys
  • Polymers and Plastics

Cite this

Interfacial charge between ZnO varistor ceramics and inorganic insulating materials and its role. / Li, Shengtao; Liu, Fuyi; Li, Bo; Ohki, Yoshimichi.

In: Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research, Vol. 11, No. 5, 10.1997, p. 479-482.

Research output: Contribution to journalArticle

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