Method for reduction of sinter temperatures of antiferroelectric

Details Method for reduction of sinter temperatures of antiferroelectric Method for reduction of sinter temperatures of antiferroelectric

1997-10-10

1999-11-30

Beck, Shrive

Coating processes

Electrical product produced

Condenser or capacitor

4271263, 4273766, 4273761, 4274191, 29 2541, 29 2542, 607119, 361313, B05D 302, B05D 136, H01G 406, A61N 139

Patent

active

059938951

ABSTRACT:
A method for densifying a dielectric antiferroelectric material includes the steps of adding a compound which includes lithium to the dielectric material to create a mixture thereof. Thereafter, the mixture is heated to a temperature of not greater than about 1100.degree. C. for a predetermined period to densify the mixture. It is preferred that the lithium compound be a lithium salt and that the dielectric material comprise a PLZT composition.

REFERENCES:
patent: 4324750 (1982-04-01), Maher
patent: 5318725 (1994-06-01), Sandhage
patent: 5545184 (1996-08-01), Dougherty
patent: 5603147 (1997-02-01), Bischoff et al.
Fu et al., "Effects of doping pairs on the preparation and dielectricity of PLZT ceramics", Ferroelectrics, 67(2-4), abstract, pp. 93-102, 1986.
Ishchuk et al., "Mesoscopic inhomogeneities in Pb0.85(Li1/2 La 1/2)0.15(Zr1-yTiy)03 solid solutions in the vicinity of FE-AFE phase stability boundary", Ferroelectrics, Letter Sect., 21(5/6), abstract, pp. 161-166, 1996.

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