DIELECTRIC CERAMIC COMPOSITION AND MULTILAYER CERAMIC PARTS

PROBLEM TO BE SOLVED: To obtain a dielectric porcelain composition for temperature compensation having a high relative dielectric constant and a high Q value, capable of being sintered at a low temperature and less liable to change in the characteristics of the ceramic due to firing and to obtain mu...

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Bibliographic Details
Main Authors SANO HARUNOBU, MATOBA HIROAKI
Format Patent
LanguageEnglish
Published 03.04.2001
Edition7
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:PROBLEM TO BE SOLVED: To obtain a dielectric porcelain composition for temperature compensation having a high relative dielectric constant and a high Q value, capable of being sintered at a low temperature and less liable to change in the characteristics of the ceramic due to firing and to obtain multilayer ceramic parts using the composition, e.g. a multilayer ceramic capacitor and a multilayer LC filter. SOLUTION: The composition contains 0.1-25 pts.wt. SiO2 glass (not containing Pb oxide) based on 100 pts.wt. principal component present in the region defined by points A-E in the (BaO, TiO2, Re2O3) ternary composition diagram (molar composition ratio). The SiO2 glass contains >3.0 to 20 pts.wt. (expressed in terms of MnO) Mn oxide. Preferably the glass is B2O3-SiO2 glass (not containing Pb oxide) and <=10 pts.wt. (expressed in terms of CuO) Cu oxide is further contained.
Bibliography:Application Number: JP19990272774