Method of producing a voltage-nonlinear resistor

Details Method of producing a voltage-nonlinear resistor Method of producing a voltage-nonlinear resistor

1988-09-09

1991-01-01

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

With subsequent uniting of the particles

264 61, 264 66, C04B 3332

Patent

active

049816241

ABSTRACT:
A method of producing a voltage nonlinear ZnO varistor in which seed grains of ZnO are produced by spray drying a slurry of ZnO particles and then sintering the dried slurry to form seed grains having a size of 10 to 100.mu.m. The seed grains are mixed with a ZnO powder of particles of much smaller size than the seed grains and a small amount of an auxiliary component. The mixture is then molded and sintered to form the varistor element to which electrodes are attached.

REFERENCES:
patent: 4094061 (1978-06-01), Gupta et al.
patent: 4169071 (1979-09-01), Eda et al.
patent: 4397773 (1983-08-01), May

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