Electric ceramic composition

Details Electric ceramic composition Electric ceramic composition

1989-11-17

1990-11-27

Lander, Ferris H.

Compositions: ceramic

Ceramic compositions

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

C04B 3500

Patent

active

049735675

ABSTRACT:
A dielectric ceramic composition possessing a high dielectric constant and a high unloaded Q and exhibiting stable electric properties even in the high frequency range of 10 GHz contains BaO, ZnO, MgO, NiO, ZrO.sub.2 and Ta.sub.2 O.sub.5 in amounts of not less than 59.0 mol % and not more than 66.0 mol % of BaO, less than 10 mol % of ZnO, less than 10 mol % of MgO, less than 10 mol % of NiO, less than 10 mol % of ZrO.sub.2, and not less than 19.0 mol % and less than 24 mol % of Ta.sub.2 O.sub.5.

REFERENCES:
patent: 4485180 (1984-11-01), Konoike et al.
patent: 4717694 (1988-01-01), Tamura et al.
End et al., Dialectric Properties of Ceramics in Ba(CO.sub.1/3 Nb.sub.2/3)O.sub.3 Ba(Zn.sub.1/3 Nb.sub.2/3)O.sub.3 Solid Solutions, J. Am. Ceramic Soc., 1987.

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