Ceramics having nonlinear voltage characteristics and method for

Details Ceramics having nonlinear voltage characteristics and method for Ceramics having nonlinear voltage characteristics and method for

1975-06-03

1977-07-05

Douglas, Winston A.

Compositions

Electrically conductive or emissive compositions

Metal compound containing

106 395, 106 732, 252521, 338 20, C04B 3500, H01C 7 10

Patent

active

040339068

ABSTRACT:
Ceramics having nonlinear voltage characteristics comprising the product obtained on preparing a mixture of zinc oxide as a main component, and, as subcomponents, cobalt plus one of praseodymium or terbium, either in an elemental form or as a compound thereof, in an amount of from 0.1 to 8.0 atomic % for the cobalt, from 0.08 to 8.0 atomic % for the praseodymium and from 0.1 to 8.0 atomic % for the terbium, each calculated as cobalt, praseodymium and terbium, and calcining the mixture at a temperature in the range of from about 1150.degree. to about 1400.degree. C and a method for preparing the ceramics. An embodiment includes, as an additional subcomponent, lanthanum, either in an elemental form or as a compound in an amount of from 0.08 to 8.0 atomic %, calculated as lanthanum, with the zinc oxide, cobalt and praseodymium.

REFERENCES:
patent: 3503029 (1970-03-01), Matsuoka
patent: 3663458 (1972-05-01), Masuyama et al.
patent: 3699058 (1972-10-01), Matsuoka et al.
patent: 3928242 (1975-12-01), May
Matsuoka, M. "Nonohmic Properties of Zinc Oxide Ceramics" Japanese J. of Appl. Physics 10 (6) June, 1971, pp. 736-746.

Affiliated with

Also associated with

Rating

Ceramics having nonlinear voltage characteristics and method for does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ceramics having nonlinear voltage characteristics and method for, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ceramics having nonlinear voltage characteristics and method for will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-576481