1992    
1993    
1994    
1995    
1996    
1997    
1998    
1999    
2000    
2001    
2002    
2003    
2004    
2005    
2006    
2007    
2008    
2009    
2010    
2011    
2012    
2013    
2014    
2015    
2016    
Liu, S., Han, J., Du, H., Wang, C., Yang, Y., Yang, J., Chang, H.

High energy product in mechanically alloyed ThMn12-type compound with exchange coupling effect
Journal of Magnetism and Magnetic Materials 312, (2),pp 449-452 (2007)
The phase formations and the magnetic properties of the mechanically milled NdFe11−yCoyMo1Nx (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  ∼  9.5 kOe and a Mr of  ∼ 78 emu/g.