Dielectric ceramic composition

Details Dielectric ceramic composition Dielectric ceramic composition

1997-01-27

1998-03-31

Jones, Deborah

Compositions: ceramic

Ceramic compositions

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

252 629, C04B 35499

Patent

active

057338329

ABSTRACT:
A dielectric ceramic composition composed mainly of lead magnesium-niobate said three major components is defined by
(where x+y+z=100 parts by mole, and each value of x, y, and z is on lines or within the area enclosed by lines passing through four points A (72, 10, 18), B (76, 5, 19), C (57, 5, 38), and D (48, 20, 32) in a triangular composition diagrams), and said three major components are supplemented by (Pb.sub.1-x Ba.sub.x) (Cu.sub.1/2 W.sub.1/2)O.sub.3 (where 0.ltoreq.x.ltoreq.1) in an amount less than about 5 parts by mole (excluding 0 part by mole) for 100 parts by mole of said major components. This dielectric ceramic composition can be sintered at low temperatures and has a high permittivity and a high mechanical strength.

REFERENCES:
patent: 5004715 (1991-04-01), Hakotani et al.
patent: 5098869 (1992-03-01), Morimoto et al.
patent: 5439857 (1995-08-01), Iwamoto et al.
patent: 5658485 (1997-08-01), Cava et al.

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