Texturing for bulk α-Fe/Nd2Fe14B nanocomposites with enhanced magnetic properties

In the present study, the texturing of bulk α-Fe/Nd2Fe14B nanocomposites produced from Nd-lean amorphous NdxFe92.5−xCu1.5B6 (x=9 to 11.5 at%) via a hot deformation under a uniaxial stress of ~350 MPa at 973 K has been studied. An enhanced (00l) texture of the hard phase is observed with increasing Nd content, which results in an increase in the magnetic anisotropy of the nanocomposite magnets. As a result, both the coercivity and the remanence of the magnets increase simultaneously with increasing Nd content from x=9-11.5 at%, yielding a significant enhancement of the maximum energy product from (BH)max=13.2 to 17.5 MGOe in the direction parallel to stress axis.