Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1805006 | Journal of Magnetism and Magnetic Materials | 2007 | 4 Pages |
Abstract
The phase formations and the magnetic properties of the mechanically milled NdFe11âyCoyMo1Nx (y=0, 0.5, 1, 1.6, 2.2) compounds have been studied. A relatively high remanence to saturation magnetization ratio of 0.6-0.7 and a high coercivity up to 9.5 kOe were achieved for these nitrides. It is found that the substitution of Co for Fe plays a key role in the grain growth and the grain distribution of α-Fe. The remanences and the coercivities of these compounds increase with the Co content up to y⩽1.6. These compounds show a significant remanence enhancement which can be attributed to the magnetic exchange coupling between Nd(Fe,Mo)12Nx and the α-Fe(Co) grains. The maximum energy product (BH)max of about 8.3 MG Oe is obtained for NdFe10Co1Mo1Nx with a Hc of â¼9.5kOe and a Mr of â¼78emu/g.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Shunquan Liu, Jingzhi Han, Honglin Du, Changsheng Wang, Yingchang Yang, Jinbo Yang, Hong Chang,