The effect of Nd8Cu2 alloy on the microstructure and magnetic properties of (Nd, MM)-Fe-B sintered magnets
The effect of Nd8Cu2 alloy on the microstructure and magnetic properties of (Nd, MM)-Fe-B sintered magnets
复制标题
Nd8Cu2合金对(Nd,MM)-Fe-B烧结磁体显微组织和磁性能的影响
DOI：
10.1016/j.jmmm.2019.04.028
复制
发表时间：
2019-08
影响因子：
2.7
通讯作者：
Li Yongfeng
中科院分区：
文献类型：
--
作者：
Ma Qiang;Hu Zhifeng;Zhang Zeyu;Liu Yanli;Zhang Xuefeng;Liu Fei;Ju Xiangming;Li Zhubai;Wang Gaofeng;Li Yongfeng
将Nd-Fe-B和MM-Fe-B粉末混合烧结制备了多主相(MM0.3Nd0.7)-Fe-B （MM = Misch Metal）磁体。为了进一步提高磁体的矫顽力，在磁体中加入nd8cu2共晶合金粉末作为变量。当nd8cu2粉末的添加量从0 ~ 5 wt%增加时，磁体的hcje增加了56.8%（7.01 ~ 10.99 wt%）。显微组织研究表明，添加5 wt% nd8cu2粉末后，连续晶界层厚度大于2.1 nm，有效阻断了相邻晶粒之间的短程交换耦合，提高了hcj。选择区电子衍射图像表明，Cu以ndcu2的形式存在于晶界层中。
Multi-main-phase (MM0.3Nd0.7)-Fe-B (MM = Misch Metal) magnets were prepared by sintering the mixture of Nd-Fe-B and MM-Fe-B powders. In order to further enhance the coercivity of the magnet, Nd8Cu2eutectic alloy powders were added to the magnets as a variable. When the addition of the Nd8Cu2powders increases from 0 to 5 wt%, theHcjof the magnets increases by 56.8% (7.01–10.99 kOe). Microstructural investigations show that after the addition of 5 wt% Nd8Cu2powders, the thickness of continuous grain boundary layers are over 2.1 nm, which effectively block the short-range exchange coupling between adjacent grains, contributing to the improvement ofHcj. The Selected Area Electron Diffraction images show that the Cu exists in the form of NdCu2in the grain boundary layers.
登录
查看更多内容
影响因子：
1.7
作者：
R. Shang;J. Xiong;Dan Liu;S. Zuo;Xin Zhao;Rui-wei Li;W. Zuo;T. Zhao;Ren-jie Chen;Jirong Sun;B. Shen
通讯作者：
R. Shang;J. Xiong;Dan Liu;S. Zuo;Xin Zhao;Rui-wei Li;W. Zuo;T. Zhao;Ren-jie Chen;Jirong Sun;B. Shen
影响因子：
6.2
作者：
H. M. Hosseini;A. Dadoo;A. Dolati;A. Kianvash
通讯作者：
H. M. Hosseini;A. Dadoo;A. Dolati;A. Kianvash
添加(Nd, Pr)-H粉末增强Nd-Ce-Fe-B烧结磁体的矫顽力
影响因子：
6.2
作者：
Ma, Tianyu;Wu, Bo;Yan, Mi
通讯作者：
Yan, Mi
影响因子：
2.7
作者：
Zhang, Yujing;Ma, Tianyu;Yan, Mi
通讯作者：
Yan, Mi
影响因子：
6
作者：
Woodcock, T. G.;Zhang, Y.;Givord, D.
通讯作者：
Givord, D.