%0 Journal Article
%T Magnetic hardening of soft phase in nanocomposite permanent magnetic materials by exchange coupling<br>纳米复合永磁材料中软磁性相交换硬化的研究
%A Zhang Shuai
%A Chen Xi-Fang
%A Yin Jin-Hu
%A Zhang Hong-Wei
%A Chen Jing-Lan
%A Jiang Hong-Wei
%A Wu Guang-Heng
%A <br>张帅
%A 陈喜芳
%A 阴津华
%A 张宏伟
%A 陈京兰
%A 姜宏伟
%A 吴光恒
%J 物理学报
%D 2010
%I 
%X In this work, the issue of magentic hardening of soft phase in nanocomposite permanent magnetic materials has been investigated using one-and three-dimensional models. For the same microstructure, it is found that the coercivity is decreased and the low-field demagnetization curve keeps unchanged when the anisotropy constant of magnetic hard phase is decreased in anisotropic one-or three-dimensional samples. Therefore, the drop in anisotropy of magnetic hard phase will not lead to the increase of remanence and maximum energy product (BH)max. According to the simulation results of isotropic three-dimension samples, both the remanence and (BH)max will be obviously decreased by the drop in anisotropy. As a result, enhancing the anisotropy and/or enlarging the grain size of magnetic hard phase is one of the means to improve the hard magnetic properties of nanocomposite permanent magnetic materials.
%K nanocomposite permanent magnet
%K coercivity
%K remanence
%K energy product<br>纳米复合永磁
%K 矫顽力
%K 剩磁
%K 磁能积
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=8123F5487A6419FF87E66BCB7EA53EF1&yid=140ECF96957D60B2&vid=6AC2A205FBB0EF23&iid=9CF7A0430CBB2DFD&sid=53B9DF8140189DC7&eid=6E36E1FD03D5525D&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=21