Ceramics having nonlinear voltage characteristics

Details Ceramics having nonlinear voltage characteristics Ceramics having nonlinear voltage characteristics

1976-06-30

1978-01-17

McCarthy, Helen M.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

252519, 252521, 338 20, C04B 3550, H01C 710, H01C 712

Patent

active

040690610

ABSTRACT:
Ceramics having nonlinear voltage characteristics in which (1) zinc oxide is used as a main component and (2) praseodymium, (3) one or more of magnesium or calcium, and (4) cobalt are added thereto as subcomponents, in elemental form or as a compound thereof, in an amount of from about 0.08 to about 10.0 atomic % for praseodymium, from about 0.08 to about 10.0 atomic % for the one or more of magnesium or calcium, and from about 0.1 to about 8.0 atomic % for the cobalt, each calculated as praseodymium, magnesium or calcium and cobalt.

REFERENCES:
patent: 3503029 (1970-03-01), Matsuoka
patent: 3903226 (1975-09-01), Iga et al.
patent: 3928242 (1975-12-01), May
Matsuoka, M.-"Nonohmic Properties of Zinc Oxide Ceramics," Jap. J. of Appl. Physics, 10(6) June 1971, pp. 736-746.

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