%0 Journal Article
%T Study on the role of Nb addition in rapid-quenched NdFeB permanent magnets<br>添加Nb在快淬NdFeB永磁体中的作用研究
%A Zhang Ran
%A Liu Ying
%A Li Jun
%A Ma Yi-Long
%A Gao Sheng-Ji
%A Tu Ming-Jing
%A <br>张 然
%A 刘 颖
%A 李 军
%A 马毅龙
%A 高升吉
%A 涂铭旌
%J 物理学报
%D 2007
%I 
%X The effect of Nb addition in rapid-quenched (Nd,Dy)11.5Fe82.4-nNbnB6.1 (n=0,0.5,1,1.5,2) permanent magnets on the magnetic properties, temperature characteristics and microstructure has been investigated. It is found that Hcj increases with increasing Nb content and the irreversible loss of magnetic flux decreases. Nb addition results in smaller grains and more homogeneous and regular grain structure. It is considered that Nb addition may enhance exchange coupling pining field and reduce internal stray magnetic field. As a result, the irreversible loss of magnetic flux decreases notably and the magnetic properties at higher temperature are improved.
%K NdFeB<br>磁性能
%K 温度特性
%K 显微组织
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=89AA7A5D0E4A65AB&yid=A732AF04DDA03BB3&vid=014B591DF029732F&iid=CA4FD0336C81A37A&sid=AE43DE0664B02889&eid=68FF5306A8F9C315&journal_id=1000-3290&journal_name=物理学报&referenced_num=1&reference_num=8