Ceramic capacitors and dielectric compositions

Details Ceramic capacitors and dielectric compositions Ceramic capacitors and dielectric compositions

1985-02-28

1986-11-25

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

264 61, 501135, H01G 410, C04B 3334, C04B 3546

Patent

active

046252584

ABSTRACT:
A dielectric composition comprising a ternary system of non-stoichiometric lead magnesium niobate, non-stoichiometric lead zinc niobate and non-stoichiometric lead iron niobate up to 10 wt % PbO may be added to the ternary mix. Compositions with firing temperatures in the range 950.degree. to 1040.degree. C., have dielectric constants in the range 13,900-22,100 making the composition particularly suitable for high silver content multilayer ceramic capacitors.

REFERENCES:
patent: 3495996 (1970-02-01), Delaney et al.
patent: 3682766 (1972-08-01), Maher
Chemical Abstracts vol. 83, No. 16 Oct. 20, 1975, p. 625 No. 140606r, Columbus, Ohio, B. A. Malkor "Lead Magnoniobates of Different Compositions".
Chemical Abstracts vol. 98, No. 16 Apr. 18, 1983, p. 302 No. 131241a, Columbus, Ohio.

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