Binary system SmCo: revision of the phase diagram in the Co rich field

Permanent magnet alloys based on Sm2Co17; phase evolution in the quinary system Sm–Zr–Fe–Co–Cu

“…Around the ideal composition Sm 2 Co 17 one observes the rhombohedral modification at all temperatures [11] though it has been claimed repeatedly that the high-temperature version of 2 : 17 is hexagonal. In the binary, the disordered form of Sm 2 Co 17 is presumed to be metastable [12] and has been observed at 11 at.% Sm in an as-cast Sm -Co alloy by [11].…”

Structural and magnetic investigation of Co-rich Sm–Co unidirectionally solidified alloys

“…This part of the constitutional Sm-Co phase diagram (at equilibrium), built up during a long period (see e.g. [10,[15][16][17][18]) has been revisited recently [19,20]. Emphasis has been given to bringing new, more reliable evidence on the phase transformations under controversy [19,20], as well as to a more clear assessment of the main features of the system through their relevance to permanent magnet materials [20].…”

“…[10,[15][16][17][18]) has been revisited recently [19,20]. Emphasis has been given to bringing new, more reliable evidence on the phase transformations under controversy [19,20], as well as to a more clear assessment of the main features of the system through their relevance to permanent magnet materials [20]. The ternary Sm-Co-Zr system [21][22][23] and the quinary Sm-Co-Zr-Cu-Fe one [24,25] have also been investigated in the Co-rich part in order to highlight the effect of (Zr, Cu, Fe) additions on the phase equilibria and to provide a knowledge of alloy compositions expected to develop the characteristic cellular microstructure.…”

A revision of the Sm-rich region of the Sm–Co system

“…The Sm-Co system has attracted much attention [5][6][7][8][9][10][11][12][13][14][15] for the excellent magnetic properties of the Co-rich alloys. The most recent experimental study of the Sm-Co system was carried out by Ge et al [5].…”