TbCu₇-type Sm-X-Fe compounds (X = Zr, Hf, Y, Dy, La, Ce and Nd) synthesized by low-temperature reduction-diffusion (LTRD) process using molten salt

TbCu7-type Sm-Fe-N anisotropic powder with a high Fe content has the potential to surpass Nd-Fe-B magnet. In this study, elemental substitution of Sm in Sm-Fe system was investigated for purpose synthesizing Fe-rich compounds using low-temperature reduction-diffusion (LTRD) process, which is synthesis method capable producing powder. Sm-X-Fe powders have been synthesized by mixing ɑ-Fe, SmCl3, one chloride additives (X = Zr, Hf, Y, Dy, La, Ce and Nd), Ca, LiCl, performing reaction at 600 °C. The results an EDX analysis variation a-axis lengths phase suggested that all additional elements could be substituted Sm. Although not achieved Zr Hf showed increase content.