Invention Grant
- Patent Title: Ferromagnetic compound magnet
- Patent Title (中): 铁磁复合磁铁
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Application No.: US12956253Application Date: 2010-11-30
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Publication No.: US08764917B2Publication Date: 2014-07-01
- Inventor: Hiroyuki Suzuki , Matahiro Komuro , Yuichi Satsu , Takao Imagawa
- Applicant: Hiroyuki Suzuki , Matahiro Komuro , Yuichi Satsu , Takao Imagawa
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2009-270968 20091130
- Main IPC: H01F1/055
- IPC: H01F1/055
Abstract:
A ferromagnetic compound magnet in accordance with the present invention includes a ferromagnetic compound based on a binary alloy containing R—Fe system (R is a 4f transition element or Y) or a ternary allay containing R—Fe-T system (R is a 4f transition element or Y, and T is a 3d transition element except for Fe, or Mo, Nb or W), the ferromagnetic compound being characterized by: atomic percentage of the element R to the element Fe or to the elements Fe and T is 15% or lower; an element F is incorporated into an interstitial position in a crystal lattice of the alloy. The ferromagnetic compound is expressed in a chemical formula of: R2Fe17Fx; R2(Fe,T)17Fx; R3Fe29Fy; R3(Fe,T)29Fy; RFe12Fz; or R(Fe,T)12Fz (0
Public/Granted literature
- US20110133112A1 FERROMAGNETIC COMPOUND MAGNET Public/Granted day:2011-06-09
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