Composite titanate aluminate dielectric material

Details Composite titanate aluminate dielectric material Composite titanate aluminate dielectric material

1991-03-05

1992-09-15

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

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

501135, 501136, 264 66, C04B 3544, C04B 3546

Patent

active

051478358

ABSTRACT:
A sintered, composite ceramic material if formed of a plurality of titanate and aluminate compounds that cooperate to produce improved dielectric properties, including a dielectric constant between about 10 and 25, preferably between 14 and 21, and a temperature coefficient less than 15 ppm per .degree.C., preferably less than 10 ppm per .degree.C. The material exhibits an oxide composition generally characterized by the formula

REFERENCES:
patent: 4431977 (1984-02-01), Sokola et al.
patent: 4614725 (1986-09-01), Ando et al.
patent: 4942146 (1990-07-01), Negas et al.
patent: 4980246 (1990-12-01), Negas et al.
D. Kajfez, et al. Dielectric Resonators, "Material Properties", Chapter 7 (1986) pp. 327-330 and 370-375.

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