Highly densified voltage non-linear resistor and method of...

Details Highly densified voltage non-linear resistor and method of... Highly densified voltage non-linear resistor and method of...

H - Electricity

01

C

356/114, 31/182

H01C 7/00 (2006.01) H01C 7/10 (2006.01) H01C 7/112 (2006.01) H01C 17/30 (2006.01)

Patent

CA 1315093

HIGHLY DENSIFIED VOLTAGE NON-LINEAR RESISTOR AND METHOD OF MANUFACTURING THE SAME Abstract of the Disclosure In case of manufacturing a voltage non-linear resistor, a sintering process is divided into two completely separated steps, i.e. primary and secondary sinterings. The primary sintering is carried out under a reduced pressure and the secondary sintering is conducted under the atmospheric pressure with a sufficient amount of oxygen. The primary sintering is effected such that the relative density and open porosity of the primarily sintered body are limited to 85% or more and 1% or less, respectively. Then the voids exiting in the body are removed to a large extent and also the oxidation is sufficiently effected. Therefore, the finally sintered body has the high density, large surge withstanding capability, and high non-linearity index.

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