Invention Grant
- Patent Title: R-T-B based alloy strip, and R-T-B based sintered magnet and method for producing same
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Application No.: US14351119Application Date: 2012-10-11
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Publication No.: US09607742B2Publication Date: 2017-03-28
- Inventor: Tamotsu Ishiyama , Taeko Tsubokura , Eiji Kato , Nobuhiro Jingu , Chikara Ishizaka
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2011-226040 20111013; JP2011-226042 20111013; JP2011-248978 20111114; JP2011-248980 20111114
- International Application: PCT/JP2012/076324 WO 20121011
- International Announcement: WO2013/054845 WO 20130418
- Main IPC: C22C33/02
- IPC: C22C33/02 ; C22C38/10 ; B22D11/06 ; H01F1/053 ; H01F1/057 ; H01F1/08 ; H01F41/02 ; C22C38/00 ; C22C38/06 ; C22C38/14 ; C22C38/16
Abstract:
An R-T-B based alloy strip containing dendritic crystals including a R2T14B phase, wherein on at least one surface, the average value for the widths of the dendritic crystals is no greater than 60 μm, and the number of crystal nuclei in the dendritic crystals is at least 500 per 1 mm square area.
Public/Granted literature
- US20140286815A1 R-T-B BASED ALLOY STRIP, AND R-T-B BASED SINTERED MAGNET AND METHOD FOR PRODUCING SAME Public/Granted day:2014-09-25
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