Nd-Fe-B magnet

作者:黄钢祥;徐庆镇;高惠民;余善富;华宏慈;王葛亚;
关键词:coercivity;;Nd-Fe-B magnet
单位:Shanghai Iron and Steel Research Institute Shanghai,200940,China.,Shanghai Iron and Steel Research Institute,Shanghai,200940,China.,Shanghai Iron and Steel Research Institute,Shanghai,200940,China.,magnetic materials
http://www.999magnet.com Shanghai Iron and Steel Research Institute,Shanghai,200940,China.,Shanghai Institute of Metallurgy,Academia Sinica,Shanghai,200050,China.,Shanghai Institute of Metallurgy,Academia Sinica,Shanghai,200050,China.,
摘要:<正> The microstructures of melt-spun Nd_135-Fe_81.74B4.76 ribbons have been investigated bymeans of X-ray diffraction,Mossbauerspectroscopy and HREM.Experimental resultsshow that optimal magnetic properties of the bond-ed magnet can be obtained by melt-spun alloys atwheel velocity of 24m/s,the microstructure ofwhich was single phase Nd_2Fe_(14)B crystallites,andno other phases,such as Nd-rich,B-rich or x-Fephase,were present.It is considered that the highintrinsic coercivity ~iH_c can be attributed to the sin-gle-domain behaviour of Nd_2Fe_(14)B crystallitephase.