DIELECTRIC CERAMIC COMPOSITION

To provide a dielectric ceramic composition which can maintain high insulation resistance and increase the AC breakdown electric field.SOLUTION: A dielectric ceramic composition contains main component grains with a perovskite structure represented by the general formula AMO3, where A sites include...

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Bibliographische Detailangaben
Hauptverfasser:	SASAKI SHINICHI, SATO AKIRA, MUTO KAZUYA
Format:	Patent
Sprache:	eng ; jpn
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:	To provide a dielectric ceramic composition which can maintain high insulation resistance and increase the AC breakdown electric field.SOLUTION: A dielectric ceramic composition contains main component grains with a perovskite structure represented by the general formula AMO3, where A sites include Ba, and M sites include Ti. The dielectric ceramic composition contains a fourth A subcomponent. The fourth A subcomponent includes Fe and Mn. The molar ratio of Mn to the total of Fe and Mn in terms of metal elements is 0.18 to 0.65.SELECTED DRAWING: Figure 1 【課題】絶縁抵抗を高く維持しつつ、交流破壊電界を向上させることができる誘電体磁器組成物を提供することを目的とする。【解決手段】一般式がＡＭＯ3で表されるペロヴスカイト構造の主成分粒子を有する誘電体磁器組成物であって、ＡサイトはＢａを含み、ＭサイトはＴｉを含み、誘電体磁器組成物が第４Ａ副成分を含有し、第４Ａ副成分がＦｅおよびＭｎを含有し、ＦｅおよびＭｎの合計に対するＭｎの金属元素換算でのモル比が０．１８～０．６５である誘電体磁器組成物。【選択図】図１