Dielectric composition and laminated capacitor

Details Dielectric composition and laminated capacitor Dielectric composition and laminated capacitor

1986-01-09

1986-12-09

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

501136, H01G 410, C04B 3546

Patent

active

046284044

ABSTRACT:
A dielectric ceramic composition prepared by adding 0.1 to 1.3% of B.sub.2 O.sub.3, 1.0 to 3.0% of SiO.sub.2 and 0.5 to 3.0% of ZnO to a composition comprising 18.0 to 27.0% of BaTiO.sub.2, 31.6 to 36.3% of Nd.sub.2 O.sub.3, 27.6 to 35.5% of TiO.sub.2, 2.5 to 8.1% of Bi.sub.2 O.sub.3 and 5.6 to 9.0% of Pb.sub.3 O.sub.4, all percentages being by weight. This dielectric composition has a high dielectric constant and a temperature coefficient controlled within a narrow range and can be fired at relatively low temperatures. Because of these properties, it is used as a multilayer ceramic capacitor in combination with an electrode composed of an Ag-Pd alloy containing a major amount of Ag.

REFERENCES:
patent: 3757177 (1973-09-01), Buehler
patent: 3760244 (1973-09-01), McClelland
patent: 4097911 (1978-06-01), Dorrian
patent: 4335216 (1982-06-01), Hodgkins et al.
patent: 4485181 (1984-11-01), Sakabe
patent: 4536821 (1985-08-01), Wheeler et al.

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