Printing cylinder having a ferroelectric ceramic material surfac

Details Printing cylinder having a ferroelectric ceramic material surfac Printing cylinder having a ferroelectric ceramic material surfac

1996-06-10

1998-07-28

Raimund, Christopher

Stock material or miscellaneous articles

Hollow or container type article

Glass, ceramic, or sintered, fused, fired, or calcined metal...

428 344, 501134, 501135, 501136, 501137, 101DIG37, 101328, B41F 500

Patent

active

057860483

ABSTRACT:
A ferroelectric ceramic material, for the storage of information in electrostatic printing processes, which ferroelectric ceramic material has a coercive force of less than 200 V/mm. The ferroelectric ceramic material consists of a ceramic perovskitic mixed crystal, which contains one or more components from each of Groups 1 and 2, whereby Group 1 contains the components PbTiO.sub.3, BaTiO.sub.3, Pb(Fe.sub.1/2 Nb.sub.1/2)O.sub.3 and Pb(Zn.sub.1/3 Nb.sub.2/3)O.sub.3 and Group 2 contains the components Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3, Pb(Ni.sub.1/3 Nb.sub.2/3)O.sub.3, Pb(Fe.sub.2/3 W.sub.1/3)O.sub.3 and Pb(Mn.sub.1/2 Nb.sub.1/2)O.sub.3. The proportions of the components from the two groups in the mixed crystal are determined according to the following equation: ##EQU1## where X.sub.i is the mole fraction of the i-component, T.sub.ci is the Curie point of the i-component and T.sub.cM is the Curie point of the mixture between 50.degree. C. and 100.degree. C.

REFERENCES:
patent: 4712156 (1987-12-01), Bardhan
patent: 4772985 (1988-09-01), Yasumoto et al.
WPI Abstract of JP 3141146, Oct. 26, 1989.
"Sol-gel Technology for Ferroelectric Thin Films"; Kim et al.; Ceram. Trans. vol. 43, 1994; pp. 123-129.
"Sol-Gel Processing and Characterization of Ferroelectric Films"; Hirano et al.; Ceram. Trans. vo. 25 1992, pp. 19-32.
"Sintering and Dielectric Properties of Single-Phase PB (M.sub.g1/3 Nb .sub.2/3)O.sub.3 -PbTio.sub.3 "; Katayama et al.; Journal of the European Ceramic Society; vol. 5, No. 3, Jan. 1989, pp. 183-191.
"Thin Films: Electrical Properties"; Lee et al.; I.S.A.F. '92, Proc. IEEE Int. Symp. Appl. Ferroelectric. 8th Jan. 1992, pp. 213-216.

Affiliated with

Also associated with

Rating

Printing cylinder having a ferroelectric ceramic material surfac does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Printing cylinder having a ferroelectric ceramic material surfac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printing cylinder having a ferroelectric ceramic material surfac will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-21493