Compositions: ceramic – Ceramic compositions – Titanate – zirconate – stannate – niobate – or tantalate or...
Patent
1994-06-30
1995-08-08
Brunsman, David
Compositions: ceramic
Ceramic compositions
Titanate, zirconate, stannate, niobate, or tantalate or...
C04B 3526
Patent
active
054398576
ABSTRACT:
A dielectric ceramic composition consists essentially of a main component of a four component system, Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3 --PbTiO.sub.3 --Pb(Ni.sub.1/3 Nb.sub.2/3)O.sub.3 --Pb(Zn.sub.1/2 W.sub.1/2)O.sub.3, of which a part of Pb is replaced with at least one substituent selected from the group consisting of Ba, Ca and Sr; and a secondary component selected from the group consisting of w, Zn and Mg. The secondary component is incorporated in the main component in an amount of 0.05 to 10.0 parts by weight per 100 parts by weight of the main component in terms of each oxide, WO.sub.3, ZnO or MgO. The main component consists essentially of 4.0 to 93.0 mol % of Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3, 1.5 to 35.0 mol % of PbTiO.sub.3, 1.5 to 51.0 mol % of Pb(Ni.sub.1/3 Nb.sub.2/3)O.sub.3, and 1.0 to 34.0 mol % of Pb(Zn.sub.1/2 W.sub.1/2)O.sub.3, the amount of at least one substituent for Pb being 0.1 to 10 mol %.
REFERENCES:
patent: 4582814 (1986-04-01), Thomas
patent: 4601989 (1986-07-01), Sakabe et al.
patent: 4661462 (1987-04-01), Sakabe et al.
patent: 4744972 (1988-05-01), Ogata et al.
patent: 4749668 (1988-06-01), Fujino et al.
patent: 4985381 (1991-01-01), Mori et al.
patent: 5079197 (1992-01-01), Ushida et al.
patent: 5219810 (1993-06-01), Furuya et al.
Hamaji Yukio
Iwamoto Sakiko
Sano Harunobu
Tomono Kunisaburo
Brunsman David
Murata Manufacturing Co. Ltd.
LandOfFree
Dielectric ceramic composition does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dielectric ceramic composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dielectric ceramic composition will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-971011