In order to clarify the influence of the magnetic field on the thermal decomposition of Sm2Fe17N3 powder, we conducted a heat-treatment (HT) experiment in a vacuum of 38 Pa, at a temperature of 723 K, and in a magnetic field of zero and 5 T. Results of X-ray diffraction measurement, temperature dependence of magnetization and 57Fe Mössbauer spectroscopy experiments showed that fully-nitride Sm2Fe17N3 decomposes to nitrogen-poor Sm2Fe17Nx (0 < x < 3), α-Fe, Fe2O3 and Fe3O4. The magnetic field promoted the thermal decomposition of Sm2Fe17N3 in this HT condition.
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Onoue et al. (2024) studied this question.
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