Nitrogenation of the intermetallic Sm2Fe17 compound

Abstract The nitrogenation of nearly single-phase Sm 2 Fe 17 results in an interstitial intermetallic compound of Sm 2 Fe 17 N 3 . The time dependence of mass gain is logarithmic. The investigation of the domain pattern reveals a sharp transition from the Sm 2 Fe 17 to the Sm 2 Fe 17 N 3 phase within bulk material and larger particles, respectively. The initial magnetization curves of virgin and de-demagnetized samples are not very different. This points to a different demagnetization behaviour as compared to Nd-Fe-B magnets.