HIGH DIELECTRIC CONSTANT TYPE CERAMIC COMPOSITION

There is disclosed a high dielectric constant type ceramic composition which comprises a composite material comprising at least one of BaO and CaO; PbO; Fe2O3; Nb2O5; WO3, CuO characterized in that when said composite material is represented by the general formula: xPb(Fe1/2Nb1/2)O3-yM(Cu1/2W1/2)O3-...

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Bibliographic Details
Main Authors YAMASHITA, YOUHACHI, HARATA, MITUO, TAKAHASHI, TAKASHI
Format Patent
LanguageEnglish
French
Published 13.06.1989
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:There is disclosed a high dielectric constant type ceramic composition which comprises a composite material comprising at least one of BaO and CaO; PbO; Fe2O3; Nb2O5; WO3, CuO characterized in that when said composite material is represented by the general formula: xPb(Fe1/2Nb1/2)O3-yM(Cu1/2W1/2)O3-zPb(Fe2/3W1/3)O3 wherein M Is at least one of Ba and Ca, and x, y and z are defined as follows: A: x = 65, y = 5, z = 30, B: x = 90, y = 10, z = 0, C: x = 65, y = 0.5, z = 34.5, and D: x = 99.5, y = 0.5, z = 0; and 0 to 1.0% by weight of manganese oxide (MnO) with respect to said composite material.
Bibliography:Application Number: CA19840448962