Sm–Fe–N bulk magnet was produced by the compression shearing method. X-ray diffraction studies revealed that the magnet retained the original Sm2Fe17N3 phase structure without any appreciable decomposition of the Sm2Fe17N3 phase and that this phase had a pronounced crystallographic alignment. Magnetic measurements confirmed that the Sm–Fe–N magnet was magnetically anisotropic. The bulk anisotropic Sm–Fe–N magnet exhibited a high remanence value of 9.43kG with a high coercivity of 11.0kOe.

Sm-Fe-N powder was successfully consolidated into bulk materials at room temperature by the compression shearing method. Regardless of the applied shear stress, the resultant bulk materials retained the original Sm2Fe17N3 phase structure without any appreciable decomposition of the Sm2Fe17N3 phase. The density of the resultant bulk materials and the remanence of the Sm-Fe-N magnets increased with increasing the applied shear stress. A magnetically anisotropic Sm-Fe-N bulk magnet was obtained using the premagnetized Sm-Fe-N powder. The resultant Sm-Fe-N bulk magnet exhibited a remanence of 6.8kG with a coercivity of 10.8kOe.

Sm-Fe-N powders were deposited onto an aluminum substrate at room temperature in ambient atmosphere by compression shearing. In contrast to other film processing techniques, a thick film was produced at an extremely high production rate of 180 m / min. The resultant thick film retained the original Sm 2 Fe 17 N 3 phase structure without any appreciable decomposition of the Sm 2 Fe 17 N 3 phase. The thick films exhibited magnetic properties matching the original Sm-Fe-N powder.

No abstract

No abstract