OXIDE RAW MATERIAL FOR FERRITE MAGNETIC POWDER AND PRODUCTION OF FERRITE MAGNETIC POWDER

PURPOSE:To produce an oxide raw material for Ni-Zn ferrite magnetic powder having fine particle size, uniform shape and composition and high crystallinity while suppressing the formation of impurities. CONSTITUTION:An acidic aqueous solution containing Fe, Ni, Cu and Zn and containing at least one o...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	SAKUMOTO HIRONORI, SAKURAI CHIE, YOSHIDA ISAO, SUEFUJI KUMIKO, SUZUKI AKIRA
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY INDUCTANCES INORGANIC CHEMISTRY MAGNETS METALLURGY SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE:To produce an oxide raw material for Ni-Zn ferrite magnetic powder having fine particle size, uniform shape and composition and high crystallinity while suppressing the formation of impurities. CONSTITUTION:An acidic aqueous solution containing Fe, Ni, Cu and Zn and containing at least one of the Ni, Cu and Zn in an amount smaller than the total amount necessary for the objective composition is mixed with an alkaline aqueous solution. An oxidizing gas is blown in the mixed solution under agitation to form fine particles. The oxidized mixed solution is incorporated with an alkaline aqueous solution containing the remaining part of Ni, Cu and Zn to get the above total amounts.