Dielectric material, and a condenser made from the same
US5183786A · kind A · utility
3Cited by
0References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1991 |
| Grant date | Feb 2, 1993 |
| Priority date | — |
| Expiry date | Oct 18, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G4/1245
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The dielectric material includes a pre-baked powder containing Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3, BaTiO.sub.3, and BaZrO.sub.3, and lead oxides alone or lead oxides and copper oxides in combination. Thus, the dielectric material is sintered at low temperatures of 800.degree.-1000.degree. C., and makes it possible to use inexpensive electrode materials such as copper, silver, and silver-palladium alloy for the electrode. The dielectric material also makes it possible to produce a ceramic condenser or a thin condenser having a stable capacitance irrespective of changes in temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.