Stabilized ferroelectrics

Details Stabilized ferroelectrics Stabilized ferroelectrics

1987-02-11

1987-12-08

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

501135, H01B 312, C04B 3546

Patent

active

047121564

ABSTRACT:
There is disclosed a ceramic ferroelectric material consisting basically of lead magnesium niobate, lead nickel niobate lead titanate, having a stabilized perovskite crystal phase, having a high dielectric constant with a broad or diffuse ferroelectric to paraelectric phase transition, and adapted to being fired at temperatures up to 1200.degree. C. Numerous additives and their effects on dielectric properties are also disclosed.

REFERENCES:
patent: 2915407 (1959-12-01), Gulton et al.
patent: 4265668 (1981-05-01), Fujiwara et al.
patent: 4506026 (1985-03-01), Hodgkins et al.
patent: 4637989 (1987-01-01), Ling et al.

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