Ceramics having nonlinear voltage characteristics
AssigneeFuji Electric Co., Ltd.
InventorsIkuo Nagasawa, Kazuo Mukae, Takashi Ishii, Koichi Tsuda
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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.
Claims4
Ceramic compositions consisting essentially of (1) from about 0.08 to about 10.0 atomic % Pr;
- (2) from about 0.08 to about 10.0 atomic % Mg or from about 0.08 to about 10.0 atomic % Ca;
- (3) from about 0.1 to about 8.0 atomic % Co;
- balance ZnO.
Dependencies are inferred from the claim text.