Nonreducing dielectric ceramic and monolithic ceramic capacitor

A nonreducing dielectric ceramic has a perovskite structure represented by the formula ABO 3 with a principal crystal phase comprising barium titanate as a principal constituent. The crystal axis ratio c/a determined by an X-ray diffraction method at a temperature of -25°C or more satisfies the rela...

Full description

Saved in:
Bibliographic Details
Main Authors NAKAMURA, TOMOYUKI, SANO, HARUNOBU, MIZUNO, SHINOBU
Format Patent
LanguageEnglish
French
German
Published 22.07.2009
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
Online AccessGet full text

Cover

More Information
Summary:A nonreducing dielectric ceramic has a perovskite structure represented by the formula ABO 3 with a principal crystal phase comprising barium titanate as a principal constituent. The crystal axis ratio c/a determined by an X-ray diffraction method at a temperature of -25°C or more satisfies the relationship 1.000 ‰¤ c/a ‰¤ 1.003. Preferably, the nonreducing dielectric ceramic has a phase transition point of less than -25°C. Preferably, the nonreducing dielectric ceramic contains at least one rare-earth element. A monolithic ceramic capacitor including dielectric ceramic layers composed of a nonreducing dielectric ceramic in accordance with the present invention is also disclosed.
Bibliography:Application Number: EP20000106628