LOW-TEMPERATURE-FIRED DIELECTRIC CERAMIC COMPOSITION WITH A FLAT TEMPERATURE CHARACTERISTIC

A dielectric ceramic composition having a dielectric constant greater than 2400, said composition consisting essentially of from about 91.6 to about 95.5 weight percent barium titanate, from about 0.91 to about 1.49 weight percent niobium pentoxide, from about 0.18 to about 0.31 weight percent cobal...

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Bibliographic Details
Main Authors CHU, MIKE S.H, HODGKINS, CHARLES E, ROSE, DANIEL C
Format Patent
LanguageEnglish
Published 18.05.1988
Edition4
Subjects
ARTIFICIAL STONE
BASIC ELECTRIC ELEMENTS
CABLES
CAPACITORS
CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
CONDUCTORS
ELECTRICITY
INSULATORS
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:A dielectric ceramic composition having a dielectric constant greater than 2400, said composition consisting essentially of from about 91.6 to about 95.5 weight percent barium titanate, from about 0.91 to about 1.49 weight percent niobium pentoxide, from about 0.18 to about 0.31 weight percent cobalt oxide, from about 1.04 to about 1.87 weight percent bismuth trioxide, from about 0.68 to about 1.23 weight percent titanium dioxide, from about 0.67 to about 1.20 weight percent lead oxide, from about 0.26 to about 0.46 weight percent boron oxide, from about 0.82 to about 1.49 weight percent zinc oxide, and from 0 to about 0.11 weight percent manganese dioxide, wherein the capacitance of said composition varies with temperature about 15 percent or less from the capacitance at 25 DEG C at temperatures between about -55 DEG C and about 125 DEG C.
Bibliography:Application Number: EP19850303613