Voltage-dependent resistor and method of making the same

Details Voltage-dependent resistor and method of making the same Voltage-dependent resistor and method of making the same

1983-02-10

1985-11-05

Barr, Josephine L.

Compositions

Electrically conductive or emissive compositions

Metal compound containing

252518, 338 20, 338 21, 338313, H01B 106

Patent

active

045512680

ABSTRACT:
The present invention provides a voltage-dependent resistor of the bulk-type in which zinc oxide (ZnO) powder and additives are admixed to form a sintered body composition having as the main constituent, zinc oxide, and in which the mixture is formed into a resistor body, the body is sintered, and electrodes are applied to the opposite surfaces of the sintered body, the improvement comprising the step of, prior to sintering and admixture with said zinc oxide, admixing all amount of boron oxide (B.sub.2 O.sub.3) with other additives in the form of a borosilicate glass, which is composed of 5 to 30 weight percent of boron oxide (B.sub.2 O.sub.3) and 70 to 95 weight percent of silicon oxide (SiO.sub.2). A process for the production of said resistor is also provided.

REFERENCES:
patent: 3950274 (1976-04-01), May
patent: 4045374 (1977-08-01), Nagasawa et al.
patent: 4111851 (1978-09-01), Ho et al.
patent: 4147670 (1979-04-01), Shohata et al.
patent: 4169071 (1979-09-01), Eda et al.
patent: 4180483 (1979-12-01), Ho et al.
patent: 4452729 (1984-06-01), Carlson et al.
Okamoto M. et al.; Jpn. Kokai, 79, 108, 295, cited as Chemical Abstracts, 91, 203137b (1979).

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