Abnormal electrical conduction phenomena in zinc oxide ceramics

Author

Lee, Jae-Hyung ; Lee, Sang-Seok ; Kee-Joe Lim ; Bong-Heup Kim

Author_Institution

Dept. of Electr. Eng., Chungbuk Nat. Univ., Seoul, South Korea

fYear

1989

Firstpage

313

Lastpage

316

Abstract

The transient response of zinc oxide ceramics with additives such as Bi₂O₃, Sb₂O₃, and MnO₂ was investigated. A microstructural study suggests that all the ZnO grains are surrounded by an intergranular layer. The voltage-current characteristics measured at 20°C and 60°C are shown. Several of the characteristic phenomena observed, such as current oscillation and negative differential resistance, are discussed

Keywords

antimony compounds; bismuth compounds; ceramics; current fluctuations; grain size; manganese compounds; negative resistance; semiconductor materials; sintering; transient response; zinc compounds; 20 degC; 60 degC; ZnOBi₂O₃; ZnOMnO₂; ZnOSb₂O₃; ceramics; current oscillation; intergranular layer; microstructural study; negative differential resistance; semiconductor; sintering; transient response; voltage-current characteristics; Additives; Bismuth; Ceramics; Current-voltage characteristics; Grain boundaries; Pulse measurements; Surges; Temperature; Threshold voltage; Zinc oxide;

fLanguage

English

Publisher

ieee

Conference_Titel

Conduction and Breakdown in Solid Dielectrics, 1989., Proceedings of the 3rd International Conference on

Conference_Location

Trondheim

Type

conf

DOI

10.1109/ICSD.1989.69211

Filename

69211