High dielectric ceramic composition

Details High dielectric ceramic composition High dielectric ceramic composition

1992-09-24

1993-10-05

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

C04B 3546

Patent

active

052504816

ABSTRACT:
A high dielectric ceramic composition essentially consisting of 97.04 weight % to 97.80 weight % of BaTiO.sub.3 as a host material, 1.42 weight % to 1.92 weight % of Nb.sub.2 O.sub.5, 0.04 weight % to 0.06 weight % of MnO.sub.2 0.33 weight % to 0.45 weight % of CoO, 0.31 weight % to 0.41 weight % of CeO.sub.2 and 0.10 weight % to 0.12 weight % of ZnO. The composition exhibits TCC characteristic satisfying the characteristic of X7R of EIA standard, high dielectric constant of 3,200 to 3,800 and high insulation resistivity of 10.sup.3 to 10.sup.14. With these characteristics, the composition is useful for making multi-layer ceramic capacitors, thereby contributing to a compactness of electronic/electric appliances.

REFERENCES:
patent: 4861736 (1989-08-01), Ono et al.
patent: 4882305 (1989-11-01), Chu et al.
patent: 4939108 (1990-07-01), Dean

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