Dielectric ceramic composition

Details Dielectric ceramic composition Dielectric ceramic composition

1996-09-30

1997-06-10

Jones, Deborah

Compositions: ceramic

Ceramic compositions

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

C04B 3546

Patent

active

056375425

ABSTRACT:
A non-lead dielectric ceramic composition comprises a binary system solid solution represented as (1-x) BNT-xNN, wherein BNT is (Bi.sub.1/2 Na.sub.1/2)TiO.sub.3 and NN is NaNbO.sub.3, as constituents of the binary system solid solution, respectively, and 0<x<1. BNT is a ferroelectric material with a Curie temperature of 320.degree. C. and has a perovskite type crystal structure of a trigonal system. Meanwhile, NN is an anti-ferroelectric material having a perovskite type crystal structure of an orthorhombic system.

REFERENCES:
patent: 4978646 (1990-12-01), Bardhan et al.
patent: 5192723 (1993-03-01), Fujiu et al.
patent: 5273944 (1993-12-01), Kagata et al.
patent: 5369068 (1994-11-01), Kaneko

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