Process for producing a voltage-dependent nonlinear resistor

Details Process for producing a voltage-dependent nonlinear resistor Process for producing a voltage-dependent nonlinear resistor

1996-07-08

1998-05-19

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

Outside of mold sintering or vitrifying of shaped inorganic...

Of electrical article or electrical component

156 89, 264624, C04B 3700, C04B 3510

Patent

active

057531765

ABSTRACT:
A process for producing a voltage-dependent nonlinear resistor that contains zinc oxide as a major component and that also contains a minor oxide component, is improved by the steps of adding an organometallic compound as the minor oxide component to the powder of zinc oxide, mixing the two components, forming the mixture into a shape and sintering the shape. The organometallic compound as the minor oxide component is either a compound in which a hydrocarbon group is bound to a metal atom or a compound in which the hydrogen atom in a carboxyl, hydroxyl, imino group, etc., is replaced by a metal. The method is capable of reducing the scattering of the electrical characteristics of the voltage-dependent nonlinear resistor, which contributes to an improvement of the change of varistor voltage by surge current.

REFERENCES:
patent: 4767729 (1988-08-01), Osman et al.
patent: 4861743 (1989-08-01), Flank et al.
patent: 4894185 (1990-01-01), Djega-Mariadassou et al.
patent: 4996510 (1991-02-01), Becker et al.
patent: 5039452 (1991-08-01), Thompson et al.
patent: 5076979 (1991-12-01), Ochi et al.
NIST Standard Reference Database, entry for aluminum isopropoxide, 1991.

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