Abstract
The 773 K isothermal section of the La-Fe-Sn ternary system was investigated and constructed by X-ray powder diffraction (XRD). The existence of two reported ternary intermetallic compounds, La6Fe13Sn and La3FeSn6, is confirmed in this work. Compared with other R-Fe-Sn phase diagrams (R = Pr and Sm), the binary alloys Fe3Sn and Fe5Sn3 are not present. The compound Fe3Sn2 was observed from the XRD pattern of Fe3Sn2 samples, but it is not an equilibrium phase at 773 K and decomposes into Fe and FeSn phases completely for a longer heat treated time. Up to now, the crystal structure data of La2Sn3 has not been reported, so the X-ray pattern of La2Sn3 was only estimated. The phase relationship for this compound was drawn by a dotted line.
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Chen, X., Zhuang, Y. & Chen, Y. Investigation on the 773 K isothermal section of La-Fe-Sn ternary systems by X-ray powder diffraction. Rare Metals 29, 567–571 (2010). https://doi.org/10.1007/s12598-010-0170-8
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DOI: https://doi.org/10.1007/s12598-010-0170-8