MAGNETIC MATERIAL AND METHOD FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide a fluorine-containing magnetic material excellent in magnetic characteristics and thermal stability.SOLUTION: During a process of introducing fluorine into an Sm-Fe based material having a ThZnstructure, a crystal structure thereof is controlled, and an Sm-Fe-F phase...

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Bibliographische Detailangaben
Hauptverfasser:	NISHI KAZUYA, TANIGAWA SHIGEO, SATSU YUICHI, KOMURO MATAHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CASTING CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INDUCTANCES INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER MAGNETS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS PHYSICS POWDER METALLURGY SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a fluorine-containing magnetic material excellent in magnetic characteristics and thermal stability.SOLUTION: During a process of introducing fluorine into an Sm-Fe based material having a ThZnstructure, a crystal structure thereof is controlled, and an Sm-Fe-F phase constituting the material is configured so as to include a first group having a mixture ratio of F of less than 1% in molar ratio and a second group having a mixture ratio of F of 1% or more and less than 4% in molar ratio, while a volume ratio of the second group with respect to the total magnetic material is 50% or more. The second group is formed more than the first group in a position at a depth in a range of 1 μm to 2.5 μm from the surface of the magnetic material.