Nonlinear resistor and process for producing the same

Details Nonlinear resistor and process for producing the same Nonlinear resistor and process for producing the same

H - Electricity

01

C

338/18

H01C 13/00 (2006.01) H01C 7/112 (2006.01) H01C 7/12 (2006.01)

Patent

CA 1167537

ABSTRACT OF THE DISCLOSURE A nonlinear resistor comprising a sintered body containing zinc oxide as a major component and at least bismuth oxide and boron oxide and electrodes formed thereon, said sintered body having a higher .gamma.-form bismuth oxide phase concentration in upper and/or lower surface layers of the sintered body than in the inner portion of the sintered body, has stabilized properties against long-time voltage application. When the sintered body is further modified by making the .gamma.-form bismuth oxide phase concentration in the periphery portions of the upper and/or lower surface layers lower than that in the inner portions of the upper and/or lower surface layers, the resulting nonlinear resistor shows a higher long-duration current impulse withstand capability.

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