Study on magnetization reversal behavior for annealed Nd2Fe14B/α-Fe nancomposite alloys

被引：6

作者：

Zhang Pengyue ^{[1
]}

Pan Minxiang ^{[1
]}

Ge Hongliang ^{[1
]}

Yue Ming ^{[2
]}

Liu Weiqiang ^{[2
]}

机构：

[1] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China

[2] Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2013年 / 31卷 / 08期

基金：

中国国家自然科学基金;

关键词：

nanocomposite; magnetization reversal behavior; recoil loop; rare earths; RECOIL LOOP; EXCHANGE; MAGNET; FE;

D O I：

10.1016/S1002-0721(12)60354-8

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Effect of thermal annealing on the magnetization reversal behavior of alpha-Fe/Nd2Fe14B alloys was investigated. A drastic increase of the remanence M-r from 0.67 up to 0.87 T and remanence ratio M-r/M-s from 0.66 up to 0.76, respectively, was observed in the alpha-Fe/Nd2Fe14B alloys annealed at 610 degrees C as compared with the as-quenched sample. Whereas the further annealing at 680 degrees C resulted in a strong increase of the corecivity H-c as high as 491 kA/m but a slight decrease in M-r. The analysis result of the magnetization reversal behavior showed that the maximum value of the integrated recoil loop area about 1.58 kJ/m(3) was obtained in the alpha-Fe/Nd2Fe14B alloys at the annealing temperature of 610 degrees C, significantly lower than other annealed samples. This indicated a significant advantage for the application of this material as permanent magnets in electrical machines and generators due to a low energy loss.

引用

页码：759 / 764

页数：6

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