Varistor material and process for production therefor

Details Varistor material and process for production therefor Varistor material and process for production therefor

1989-06-14

1991-12-17

Barr, Josephine

Compositions

Electrically conductive or emissive compositions

Metal compound containing

264 61, 264 66, 264 65, 264104, 264235, 296101, 419 19, 419 48, 419 49, 419 53, H01B 106

Patent

active

050733028

ABSTRACT:
A varistor material comprising two crystalline phases of ZnO and ZnMn.sub.2 O.sub.4, wherein Zn and Mn are present at such a ratio that 3 to 7% by mol of ZnO is contained per 100% by mol of ZnO+MnO and the nonlinear index (.alpha.) of the varistor properties is at least 10; and a process for the production of the same, which comprises adding a manganese compound to ZnO at such a ratio as to give a content of MnO, sintering the mixture at 1100.degree. to 1350.degree. C., and further annealing the obtained sintered material at a temperature lower than the sintering temperature by at least 50.degree. C. and higher than 1000.degree. C. are disclosed.

REFERENCES:
patent: 3886097 (1975-05-01), Hossenlopp
patent: 4180483 (1979-12-01), Ho et al.

Affiliated with

Also associated with

Rating

Varistor material and process for production therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Varistor material and process for production therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Varistor material and process for production therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-834037