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Effect of doping on the magnitude of the varistor effect in a posistor material

Journal Article · · Inorg. Mater. (Engl. Transl.); (United States)
OSTI ID:7225015
Posistor ceramics, particularly doped solid solutions based on barium titanate, are characterized by a significant dependence of the resistivity on the electric field intensity in the paraelectric temperature range. This is manifested in the varistor effect. In this work the authors study the effect of doping of the materials on the nature of the microstructure and the magnitude of the varistor effect in semiconducting solid solutions (Ba, Y) TiO/sub 3/. The synthesis was performed in air at 157OK in the course of 1 h. With a correct choice of the starting composition and conditions of synthesis of a posistor ceramic the varistor effect is shown to be reduced substantially and a material suitable for high loads can be prepared.
OSTI ID:
7225015
Journal Information:
Inorg. Mater. (Engl. Transl.); (United States), Journal Name: Inorg. Mater. (Engl. Transl.); (United States) Vol. 22:3; ISSN INOMA
Country of Publication:
United States
Language:
English