Optimizing composition for (Nd, Pr)-Nb-Fe-B hard magnetic nanocomposites

被引：1
|
作者：
Pham Thi Thanh [1 ]
Nguyen Thi Thanh Huyen [1 ,2 ]
Nguyen Hai Yen [1 ]
Nguyen Huy Dan [1 ]
机构：
[1] Vietnam Acad Sci & Technol, Inst Mat Sci, Hanoi, Vietnam
[2] Quang Ninh Univ Ind, Quang Ninh, Vietnam
来源：
INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2012年 / 103卷 / 12期
关键词：
Hard magnetic material; Nanocomposite; Exchange-spring magnet; Rapidly quenched method; ND2FE14B/ALPHA-FE MAGNETS; NB ADDITION; MICROSTRUCTURE; CO; ND;
D O I：
10.3139/146.110813
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The influence of composition and annealing temperature on the magnetic properties of (Nd0.5Pr0.5)(6+x)Nb1.5Fe88.5-x-yB4+y (x = 0-6, y = 0-10) nanocomposites prepared via melt-spinning and subsequent annealing was investigated systematically to obtain their optimal compositions and fabrication conditions. The results show that each of the rare earth concentrations has an appropriate ratio of Fe/B to reveal the best performance of the material. The optimal annealing temperature decreases from 750 to 675 degrees C when concentration of rare earth is increased from 6 to 12 at.%. Coercivity, H-c, and maximum energy product, (BH)(max), of these nanocomposites can be regulated up to 14.5 kOe and 16 MGOe, respectively, by suitably choosing their composition.
引用
收藏
页码：1517 / 1521
页数：5
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