Method for production of nonreducible dielectric ceramic composi

Details Method for production of nonreducible dielectric ceramic composi Method for production of nonreducible dielectric ceramic composi

1992-01-09

1993-08-03

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

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

501134, 501135, 501136, 501138, 501139, 501152, 252520, 252521, 423263, C04B 3546

Patent

active

052328805

ABSTRACT:
A nonreducible dielectric ceramic composition of a system, (A.sub.1-x R.sub.x).sub.y BO.sub.3, is prepared by preparing a slurry containing at least one compound selected from the group consisting of carbonates and hydroxides of Ba, Sr, Ca and Mg, at least one compound selected from the group consisting of carbonates and hydroxides of rare earth elements R, and at least one compound selected from the group consisting of oxides, carbonates and hydroxides of Ti, Zr and Sn; filtering the resulting slurry; washing the filter cake with water and calcining the resulting washed cake.

REFERENCES:
patent: 3997479 (1976-12-01), Shimojo et al.
patent: 4535064 (1985-08-01), Yoneda
patent: 4537865 (1985-08-01), Okabe et al.
patent: 4677083 (1987-06-01), Uedaira et al.
patent: 4987107 (1991-01-01), Narumi et al.

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