Patent EP0238089A2 successfully refreshed from Google Patents.
EP0247920A1
Expired / Lapsed
EP
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Ceramic compositions having a high permittivity
Assignee: Compagnie Europeenne de Composants Electroniques LCC CICE
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Filing: 1987-05-07
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Granted: —
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Expires: 2007-05-07
Abstract
Abstract A dielectric ceramic composition consisting of a main phase expressed by the following formula: (Ba1-xMex)(Ti1-yM'ey)O3 in which: Me denotes calcium (Ca), M'e denotes zirconium (Zr) and/or tin (Sn) and/or manganese (Mn), x and y are the molar proportions of Me and M'e respectively, with 0.01 < x < 0.16 0.01 < y < 0.16 and of a secondary fusible phase containing 10 to 20 % by weight of SiO2, 30 to 60 % by weight of PbO, 15 to 35 % by weight of CdO, 5 to 20 % by weight of B2O3 and 0 to 2 % by weight of Al2O3. It is employed in capacitors.
Inventors
- 👤 Alain Beauger
- 👤 Alain Rossello
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 16:56
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465; C04B35/468; C04B35/4682; H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/08; H01G4/12; H01G4/1209; H01G4/1218; H01G4/1227; H01G4/129
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References Cited (Backward Citations)
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