The ternary Sm–Fe–Sn system: phase diagram, structural characterisation and magnetic properties of ternary compounds

Investigation on the 773 K isothermal section of La-Fe-Sn ternary systems by X-ray powder diffraction

“…For ternary compounds, R 6 Fe 13 Sn and R 3 FeSn 6 (R = Pr and Sm), which are reported in Refs. [1,3], were observed in this work.…”

“…In addition, the compound RFe 6 Sn 6 , reported in Refs. [3,[20][21], was not observed in this work. The XRD pattern of the LaFe 6 Sn 6 sample (#16), as shown in Fig.…”

“…Compared with other R-Fe-Sn phase diagrams (R = Pr and Sm) at 773 K [1,3], the binary alloys Fe 3 Sn and Fe 5 Sn 3 were observed in this work. Fe 3 Sn 2 has been observed in the Fe 3 Sn 2 sample but was not an equilibrium phase at 773 K. The reason is that Fe 3 Sn 2 needs quite a long time for its complete decomposition by the eutectoid reaction.…”

“…In the R-Fe-Sn ternary systems, the phase equilibrium has already been established for R = Pr, Nd, Sm, Gd, and Y [1][2][3][4]. The La-Fe-Sn system has been partly constructed [5].…”

“…The Fe-Sn binary system has been investigated in Ref. [1][2][3]9]. Four intermediate phases (Fe 5 Sn 3 , Fe 3 Sn 2 , FeSn, and FeSn 2 ) are shown in the Fe-Sn binary phase diagram [10], in which the compound Fe 5 Sn 3 decomposes to Fe and Fe 3 Sn 2 at 1038 K, and Fe 3 Sn 2 decomposes to Fe and FeSn at 880 K, respectively.…”