Wenli PEI
,
Fazeng LIAN
,
Guiqin ZHOU
,
Jinguo LI
材料科学技术（英文）
In this article, the quenched Nd4.5Fe75Co1Si1B18.5 ribbons were prepared, and the structures and properties were investigated. The results show that the change of structures of Nd4.5Fe75Co1Si1B18.5 quenched amorphous ribbons is Am-->Am' +Fe3B+ Nd2Fe23B3+ Nd2Fe14B-->Fe-3 B+Nd2Fe14B when it is heated. The effect of crystallizing treatment temperature and time on the magnetic properties of the quenched alloy was studied. The magnetic properties of 16 m/s quenched ribbons for 710 degrees Cx1200 s crystallizing treatment reach H-i(c)=238.6 kA/m, B-r=0.8987 T and (BH)(max)=51.39 kJ/m(3). The grain size is about D-Fe3B=32 nm and D-Nd2Fe14B=22 nm.
关键词:
Wenli PEI
,
Fazeng LIAN
,
Guiqin ZHOU
材料科学技术（英文）
In this paper, the technology, structures and magnetic properties of Nd4.5Fe76Co1B18.5 nanocomposite magnets were investigated. The effect of crystallizing treatment temperature and time on structures and magnetic properties of Nd4.5Fe76Co1B18.5 amorphous ribbons was studied. The results show that Nd4.5Fe76Co1B18.5 containing more analogue metals is easy to form a morphous. The magnetic properties of 16 m/s quenched ribbon for 710 degrees Cx900 s crystallizing treatment reach H-i(c)=242.1 kA/m, B-r=0.9410 T and (BH)(max)=59.64 kJ/m(3). The even grain size is about D-Fe3B=34 nm and D-Nd2Fe14B=23 nm.
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