Magnetic properties of the BCC phase at grain boundaries in the Nd-Fe-B permanent magnet
Magnetic properties of the BCC phase at grain boundaries in the Nd-Fe-B permanent magnet
复制标题
Nd-Fe-B永磁体晶界BCC相的磁性能
DOI：
10.1109/tmag.1986.1064430
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发表时间：
1986
影响因子：
2.1
通讯作者：
K. Hiraga
中科院分区：
文献类型：
--
作者：
M. Sagawa;S. Hirosawa;Hisao. Yamamoto;Y. Matsuura;S. Fujimura;H. Tokuhara;K. Hiraga
对快淬稀土-铁基合金在700 ~ 770 K热处理过程中出现的bcc相进行了结构和磁性研究。发现bcc相的晶格常数与α-Fe的晶格常数非常接近，它是一种软磁体，居里温度在400- 450 K范围内。讨论了该相与烧结Nd-Fe-B磁体中bcc边界相的关系及其在Nd-Fe-B磁体磁硬化机制中的作用。
Structural and magnetic studies have been carried out on a bcc phase that appears in melt-spun rare earth-iron based alloys during a heat treatment at temperatures ranging from 700K to 770K. It has been found that the bcc phase has a lattice constant very close to that for α-Fe and that it is a soft magnet with Curie temperatures in a 400-450K range. Relation of this phase to a bcc boundary phase in sintered Nd-Fe-B magnet and its role in the magnetic hardening mechanism in the Nd-Fe-B magnets is discussed.