Er-Fe-Mn (Erbium-Iron-Manganese)

Binary Systems 2 0 Nb-type rhombohedral) and Fe 1 -type hexagonal). There are no intermediate phases in the Fe-Mn system 2 The Er-Fe phase diagram [Massalski2] depicts the following compounds: Fe 3 -type cubic) and ErMn 4 -type tetrago- nal), Er Recently, [2009Liu] determined an isothermal section for this ternary system at 500 C. There are no ternary compounds. The solubility of the third component in the Fe-Er and Er-Mn binary phases is extensive (except in Fe3Er). With starting metals of 99.9% Er, 99.9% Fe and 99.8% Mn, [2009Liu] arc-melted 256 alloys under Ar atm. The alloys were given a final anneal at 500 C for 7 days and quenched in liquid nitrogen. The phase equilibria were mainly studied with x-ray powder diffraction. The isothermal section at 500 C constructed by [2009Liu] is shown in Fig. 1. There are no ternary compounds in the system. The isostructural compounds Er6Mn23 and Fe23Er6 form a continuous solid solution. The solubility of Fe in ErMn12 and ErMn2 phases is up to 69 and 13 at.% respectively. The solubility of Mn in Fe2Er and Fe17Er2 is up to 47 and 28 at.% respectively. (...truncated)