SINTERED MAGNET

PROBLEM TO BE SOLVED: To improve the characteristics of a magnetic material without using a heavy rare earth element that is a rare resource.SOLUTION: In a sintered magnet composed of a high saturation magnetization phase (main phase 1) having a saturation magnetic flux density of 1.6-2.7 T at 20°C...

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Bibliographische Detailangaben
Hauptverfasser:	SATSU YUICHI, KOMURO MATAHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CASTING CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INDUCTANCES MAGNETS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS 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 improve the characteristics of a magnetic material without using a heavy rare earth element that is a rare resource.SOLUTION: In a sintered magnet composed of a high saturation magnetization phase (main phase 1) having a saturation magnetic flux density of 1.6-2.7 T at 20°C and containing an Fe-based alloy, a high anisotropy phase (diffusion phase 2) having crystal magnetic anisotropic energy of 0.5-20 MJ/mand containing a rare earth element, and a grain boundary phase 3 containing fluorine, when representing the high saturation magnetization phase and the high anisotropy crystal structure by c-axis and a-axis, the axial ratio c/a is larger or lower than 1.000.