Add time:07/28/2019         Source:sciencedirect.com

(Mn,Fe)-N series micron particles were gotten by high-energy ball milling and consequent annealing of the ferrous and the manganese nitrides powders with different Fe/Mn-N ratios. The phase structures and the magnetic properties, as well as microwave absorption properties of the milled-annealed particles were studied. It was found that phase structures and saturation magnetization Ms changed with the variation of the Fe/Mn-N ratios. The highest Ms about 20.7emu/g was obtained at Fe/Mn-N ratio of 20%. The complex permittivity and permeability behaviors of the milled-annealed particles have been studied in 1–18 GHz. The reflection loss (RL) value exceeding −10  dB at all match thickness and maximum RL values of −23.7 dB with a matching thickness of 2 mm were obtained on particles at Fe/Mn-N ratio of 5%.

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