FERRITE COMPOSITION, FERRITE SINTERED BODY AND ELECTRONIC COMPONENT

To provide: a ferrite sintered body capable of being suitably used in a high frequency band and having excellent mechanical strength; a composition thereof; and an electronic component having the composition.SOLUTION: A ferrite composition has a main component and a sub-component. The main component...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: NIIBORI TAKUYA, TAKAHASHI YUKIO, OSHIMA YOSHIYA, TSUNODA KOICHI, KOMORIDA KENJI, OSAWA SHIGERU, TANOUE HIROYUKI, KONDO SHINICHI, SASAKI KO, UMEDA HIDENOBU
Format: Patent
Sprache:eng ; jpn
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:To provide: a ferrite sintered body capable of being suitably used in a high frequency band and having excellent mechanical strength; a composition thereof; and an electronic component having the composition.SOLUTION: A ferrite composition has a main component and a sub-component. The main component comprises: 40.5 to 50.0 mol% of iron oxide in terms of Fe2O3; 6.0 to 14.0 mol% of copper oxide in terms of CuO; 7.0 to 25.0 mol% of zinc oxide in terms of ZnO; and nickel oxide as the remainder. Based on 100 pts.wt. of the main component, the sub-component comprises: 3.1 to 10.0 pts.wt of cobalt oxide in terms of Co3O4; 0.5 to 4.0 pts.wt of tin oxide in terms of SnO2; and 0.50 pt.wt or less (including 0) of bismuth oxide in terms of Bi2O3. When A=(α-18)/β, where α is a content expressed by mol% of zinc oxide in terms of ZnO in the main component and β is a content by weight of cobalt oxide in terms of Co3O4 based on 100 pts.wt. of the main component, A is -3.5 or more and 1.0 or less.SELECTED DRAWING: Figure 1 【課題】高周波帯域において好適に用いられることが可能であり、しかも機械的強度にも優れたフェライト焼結体と、その組成物と、その組成物を有する電子部品を提供すること。【解決手段】主成分と副成分とを有するフェライト組成物である。主成分が、鉄酸化物をFe2 O3 換算で40.5~50.0モル%、銅酸化物をCuO換算で6.0~14.0モル%、亜鉛酸化物をZnO換算で7.0~25.0モル%、残部にニッケル酸化物を含有する。主成分100重量部に対して、副成分が、コバルト酸化物をCo3 O4 換算で3.1~10.0重量部、スズ酸化物をSnO2 換算で0.5~4.0重量部、ビスマス酸化物をBi2 O3 換算で0.50重量部以下(0を含む)で、含有する。主成分中の亜鉛酸化物のZnO換算でのモル%で表される含有量をα、主成分100重量部に対するコバルト酸化物のCo3 O4 換算での重量部含有量をβとし、A=(α-18)/βとする場合に、Aは-3.5以上1.0以下である。【選択図】図1