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Nitrogenation of Sm Fe10Mo2 powders was performed in a self-made furnace under a high-purity N2 atmosphere up to 40 MPa at 500 °C. Upon nitrogenation at atmospheric pressure, the lattice parameters a and c increase by0.5% and 2.7%, respectively, whereas the Curie temperature TCincreases from 519 to 633 K. With further increasing the nitrogenation pressure to 20 and 40 MPa, the 1:12 main phase starts to decompose and a large amount of Mo and a-Fe precipitates. This leads to variation of Mo concentration in the 1:12 phase and causes a sharp decrease in TCand in the coercivity. The relative complex permittivity and permeability of paraffin–Sm Fe10Mo2 composites show multi-resonant behavior. After nitrogenation, the magnetic loss of the powders decreases, which may originate from the influence of eddy currents due to the increase in the particle size.
Nitrogenation of SmFe10Mo2 powders was performed in a self-made furnace under a high-purity N2 atmosphere up to 40 MPa at 500 ° C. Upon nitrogenation at atmospheric pressure, the lattice parameters a and c increase by 0.5% and 2.7% respectively, while the Curie temperature TCincreases from 519 to 633 K. With further increasing the nitrogenation pressure to 20 and 40 MPa, the 1:12 main phase starts to decompose and a large amount of Mo and a-Fe precipitates. This leads to variation of Mo concentration in the 1:12 phase and causes a sharp decrease in TCand in the coercivity. The relative complex permittivity and permeability of paraffin-Sm Fe10Mo2 composites show multi-resonant behavior. may originate from the influence of eddy currents due to the increase in the particle size.