Ceramic capacitor having a silver doped dielectric of (Pb,La)(Zr

Details Ceramic capacitor having a silver doped dielectric of (Pb,La)(Zr Ceramic capacitor having a silver doped dielectric of (Pb,La)(Zr

1975-10-02

1977-05-31

Goldberg, E. A.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

252 632, 29 2542, H01G 412

Patent

active

040272095

ABSTRACT:
The dielectric material of a ceramic capacitor contains a high temperature silver doped ceramic with a small proportion of a low temperature glass. The ceramic component consists essentially of a lead zirconate in which from 0.07 to 0.16 molar parts of the lead are replaced by lanthanum and in which from 0.10 to 0.40 molar parts of the zirconate are replaced by titanate. The capacitors may be fired in an air atmosphere without substantial loss of lead at temperatures as high as 2000.degree. F. Silver containing electrodes may be employed in a monolithic capacitor of this invention, the co-fired electrode advantageously causing a silver doping of the ceramic that in turn improves the stability of capacitance with temperature and applied voltage. Alternatively, the ceramic may be predoped with silver to achieve this result.

REFERENCES:
patent: 2758267 (1956-08-01), Short
patent: 3223905 (1965-12-01), Fabricius
patent: 3316184 (1967-05-01), Nagase
patent: 3760244 (1973-09-01), McClelland
Rusinko, "Dielectric Mixing in the PLZT-Pb.sub.5 Ge.sub.3 O.sub.11 System", Thesis, Penn State College of Earth & Mineral Sciences, 5/75.
Schulze et al., "Dielectric Aging in the PLZT System", In Ferroelectronics, 9/75, vol. 9, pp. 203,207.
Taylor, "Electrical Properties of Niobium Doped Ferroelectric Pb (Zr Sn T.sub.1)O.sub.3 Ceramics", in J. of Applied Physics, vol. 18, No. 12, 11/67, pp. 4697-4706.

Affiliated with

Also associated with

Rating

Ceramic capacitor having a silver doped dielectric of (Pb,La)(Zr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ceramic capacitor having a silver doped dielectric of (Pb,La)(Zr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ceramic capacitor having a silver doped dielectric of (Pb,La)(Zr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-660849