Ceramic dielectric material having improved temperature stabilit

Details Ceramic dielectric material having improved temperature stabilit Ceramic dielectric material having improved temperature stabilit

1976-04-02

1977-06-21

Garvin, Patrick P.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

252 635, 252520, 252521, 106 733, H01B 312, C04B 3546, C04B 3550

Patent

active

040309371

ABSTRACT:
A ceramic dielectric material according to the present invention has a composition consisting essentially of La.sub.2 Ti.sub.2 O.sub.7, Sr.sub.2 Nb.sub.2 O.sub.7, and 1/2Mg.sub.2x --Ti.sub.2.sub.-2x O.sub.4.sub.-2x, where x lies in a range of 0 to 1.0. This material has a relatively large dielectric constant, a very stable temperature coefficient of the dielectric constant over a wide temperature range, a widely controllable value of the temperature coefficient of the dielectric constant, and a small dielectric loss. The temperature coefficient of the dielectric constant can be determined optionally in a wide range of value by simply changing the ratios among the three constituents of the composition.

REFERENCES:
patent: 2520376 (1950-08-01), Roup et al.
patent: 3184660 (1965-05-01), Robinson
patent: 3431124 (1969-03-01), Hayashi et al.
patent: 3682766 (1972-08-01), Maher

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