Ceramics having non-linear voltage characteristics and method of

Details Ceramics having non-linear voltage characteristics and method of Ceramics having non-linear voltage characteristics and method of

1975-07-24

1977-07-26

McCarthy, Helen M.

Compositions

Electrically conductive or emissive compositions

Metal compound containing

106 732, 252518, 252519, 338 20, 338 21, H01C 106, H01B 108

Patent

active

040382176

ABSTRACT:
A ceramic having non-linear voltage characteristics, comprising the product obtained on mixing (a) zinc oxide, as a principal component, and (b) (1) cobalt and (2) one of neodymium, samarium or dysprosium, either in an elemental form or as a compound thereof, each in an amount of 0.1 to 10 atomic % for the cobalt, neodymium, samarium and dysprosium, calculated as cobalt, neodymium, samarium and dysprosium as subcomponents, and calcining the mixture at a temperature of from about 1150.degree. to about 1400.degree. C.

REFERENCES:
patent: 3503029 (1970-03-01), Matsuoka
patent: 3663458 (1972-05-01), Nasuyama et al.
patent: 3699058 (1972-10-01), Matsuoka et al.
patent: 3928242 (1975-12-01), May

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