SILICON OXIDE-COATED Fe-BASED SOFT MAGNETIC POWDER AND METHOD FOR PRODUCING SAME

Silicon oxide-coated Fe-based soft magnetic powder having a high insulation capability can be obtained in such a manner that Fe-based soft magnetic powder is dispersed in a mixed solvent of water and an alcohol having a Hansen solubility parameter (SP value) of 11.3 or less, containing 5% by mass or...

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Hauptverfasser:	TANOUE, Koji, NISHIZAWA, Yorito
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CASTING ELECTRICITY INDUCTANCES MAGNETS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TRANSPORTING WORKING METALLIC POWDER
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creator	TANOUE, Koji NISHIZAWA, Yorito
description	Silicon oxide-coated Fe-based soft magnetic powder having a high insulation capability can be obtained in such a manner that Fe-based soft magnetic powder is dispersed in a mixed solvent of water and an alcohol having a Hansen solubility parameter (SP value) of 11.3 or less, containing 5% by mass or more and 50% by mass or less of water, so as to provide a slurry. Then, a silicon alkoxide and a hydrolysis catalyst for the silicon alkoxide are added to the slurry to coat a silicon oxide thereon. The silicon oxide-coated Fe-based soft magnetic powder is capable of providing a powder compact having a high volume resistivity in molding into a powder compact. A method of producing the same is also disclosed.
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Then, a silicon alkoxide and a hydrolysis catalyst for the silicon alkoxide are added to the slurry to coat a silicon oxide thereon. The silicon oxide-coated Fe-based soft magnetic powder is capable of providing a powder compact having a high volume resistivity in molding into a powder compact. 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subjects	BASIC ELECTRIC ELEMENTS CASTING ELECTRICITY INDUCTANCES MAGNETS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TRANSPORTING WORKING METALLIC POWDER
title	SILICON OXIDE-COATED Fe-BASED SOFT MAGNETIC POWDER AND METHOD FOR PRODUCING SAME
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