Method of preparing a stable lead zircon-titanate sol and...

Details Method of preparing a stable lead zircon-titanate sol and... Method of preparing a stable lead zircon-titanate sol and...

2002-09-19

2010-10-26

Metzmaier, Daniel S (Department: 1796)

Colloid systems and wetting agents; subcombinations thereof; pro

Continuous liquid or supercritical phase: colloid systems;...

Primarily organic continuous liquid phase

C106S287190, C252S06290R, C252S06290R

Reexamination Certificate

active

07820723

ABSTRACT:
A method of preparing a sol of lead zirconium titanate, known as PZT, of formula PbZrxTi(1−x)O3with 0.45≦x≦0.7, comprises the steps of:(a) preparing a concentrated sol in a diol, the sol comprising a titanium-based precursor, a zirconium-based precursor, and a lead-based precursor;(b) placing the concentrated sol at ambient temperature without agitation, until a sol is obtained having a constant viscosity as a function of time;(c) diluting the sol obtained in (b) with a solvent compatible with the diol used in step (a). The sol is useful for preparing PZT-based films for use in the electronics field.

REFERENCES:
patent: 5958815 (1999-09-01), Loebmann et al.
patent: 6066581 (2000-05-01), Chivukula et al.
patent: WO 90/13149 (1990-11-01), None
“Process and Seeding Effects on Cryitallisation of PZT Thin Films from Sol-Gel Method” Wu et al.,Journal of the European Ceramic Society, 17, 1997, pp. 1443-1452.
A Study of the Effects of Process Variables on the Properties of PZT Films Produced by a Single-Layer Sol-Gel Technique Tu et al.,Journal of Materials Science, 30, 1995, pp. 2507-2516.
“Processing of Multilayer PZT Coatings for Device Purposes” Olding et al.,Integrated Ferroelectics, vol. 26, 1999, pp. 225-241.
“Glycol-Based Sol-Gel Process for the Fabrication of Ferroelectric PZT Thin Films” Livage et al.,Journal of Sol-Gel Science and Technology, 2, 1994, pp. 605-609.
“Processing and Characterization of Pb(Zr, TI)O3 Films, up to 10 um thick, Produced From a Diol Sol-Gel Route” Tu et al,J. Mater. Res., vol. 11, No. 10, 1996, pp. 1556-2564.
“Characterization of Sol-Gel Pb(Zr0.53Ti0.47)O3 Films in the Thickness Range 0.25-10 um” Kurchania et al.,J. Mater. Res, vol. 14, No. 5, 1999, pp. 1852-1859.
“Lead Zirconate Titanate Stabel Stock Solution: Characterization and Applications” Wu et al.,Journal of Sol-Gel Science and Technology19, 2000, pp. 671-676).

Affiliated with

Also associated with

Rating

Method of preparing a stable lead zircon-titanate sol and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of preparing a stable lead zircon-titanate sol and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of preparing a stable lead zircon-titanate sol and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4200034