DIELECTRIC CERAMIC COMPOSITION

PROBLEM TO BE SOLVED: To provide a dielectric ceramic composition having long life under high temperature load and excellent DC bias characteristics. SOLUTION: The dielectric ceramic composition containing BaTiO3and containing BaZrO3and rare earth (R) oxide as auxiliary components, has a surface dif...

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Bibliographische Detailangaben
Hauptverfasser:	TAMURA MASAYUKI, OTSUKI SHIRO, MORIGASAKI NOBUHITO, SAKURAI DAN, TAKAGI TOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a dielectric ceramic composition having long life under high temperature load and excellent DC bias characteristics. SOLUTION: The dielectric ceramic composition containing BaTiO3and containing BaZrO3and rare earth (R) oxide as auxiliary components, has a surface diffusive particle comprising a non-diffusive phase and a diffusive phase. The concentration of Zr and R are measured to a micro-region in the diffusive phase, and an aggregate of a micro-region where the concentration of R is larger than the concentration of Zr is defined as a first region and an aggregate of a micro-region where the concentration of Zr is higher than the concentration of R is defined as a second region. In the first region, a region where the concentration of Zr is ≥1.0 atom% and