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

214An R-Fe-B based porous magnet according to the present invention has an aggregate structure of NdFeB 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: Nishiuchi, Takeshi, Nozawa, Noriyuki, Hirosawa, Satoshi, Maki, Tomohito, Bekki, Katsunori
Format: Patent
Sprache:eng
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Zusammenfassung:214An R-Fe-B based porous magnet according to the present invention has an aggregate structure of NdFeB 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.