Method of fabrication of dielectric material having volume-distr

Details Method of fabrication of dielectric material having volume-distr Method of fabrication of dielectric material having volume-distr

1979-07-27

1981-07-28

Arnold, Donald J.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 7331, 264 61, 264 66, C04B 3550, C04B 3549

Patent

active

042808464

ABSTRACT:
A mixture of oxides or salts of barium, titanium and tin (principal materials) are initially ground with two different classes of dopants. The first class consists of oxides or salts of rare earths or of elements such as antimony. The second class consists of oxides or salts of elements such as manganese or copper. After calcining and sintering, cooling of the ceramic body is obtained by adjusting to a very low rate (negative gradient of 10 to 30.degree. C. per hour) in a pure oxygen atmosphere.
The material is primarily suited for use in capacitors having one or a number of layers which may be separated by electrodes inserted prior to sintering. The material has high apparent permittivity and can be employed at much higher voltages than in barrier-layer capacitors.

REFERENCES:
patent: 2946752 (1960-07-01), Jonker et al.
patent: 2989477 (1961-06-01), Eckert
patent: 3027327 (1962-03-01), Blank
patent: 3055832 (1962-09-01), Weisz
patent: 3274110 (1966-09-01), Getto
patent: 3291739 (1966-12-01), Deschamps
patent: 3600484 (1971-08-01), Smoke et al.

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