R-Fe-B porous magnet and method for producing the same

An R-Fe-B based porous magnet according to the present invention has an aggregate structure of Nd2Fe14B type crystalline phases with an average grain size of 0.1 μm to 1 μm. At least a portion of the magnet is porous and has micropores with a major axis of 1 μm to 20 μm.

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Bibliographische Detailangaben
Hauptverfasser:	Nozawa Noriyuki, Maki Tomohito, Hirosawa Satoshi, Nishiuchi Takeshi, Bekki Katsunori
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY INDUCTANCES MAGNETS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS
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Beschreibung
Zusammenfassung:	An R-Fe-B based porous magnet according to the present invention has an aggregate structure of Nd2Fe14B type crystalline phases with an average grain size of 0.1 μm to 1 μm. At least a portion of the magnet is porous and has micropores with a major axis of 1 μm to 20 μm.