Formation of Disordered ${\rm Th}_{2}{\rm Zn}_{17}$ -Type ${\rm Sm}_{2}{\rm Fe}_{17}$ With Ti and B Additions and Hard Magnetic Properties of Their Nitrides

Compounds with nominal compositions Sm10Fe90 and Sm10Fe90Ti2B were prepared by strip casting method. Disordered Th2Zn17-type phase of Sm10Fe90Ti2B was achieved. This disordered Th2Zn17 (space group R-3m) phase was formed by randomly replacing Sm(3a) with Fe(6c)-dumbbell ((3a) and (6c) are Wyckoff symbols)). Scanning electron microscopy image revealed that the disordered Sm10Fe90Ti2B crystallized i...