“…We have determined the structure of the compound Y 2 Co 3 in our previous work on phase diagram study of the Y-Co-Nb system. Y 2 Co 3 crystallizes in the orthorhombic La 2 Ni 3 -type structure (space group Cmca) with lattice parameters a = 0.5316(2) nm, b = 0.9472(4) nm and c = 0.7083(3) nm [22]. The calculated diffraction pattern of Y 2 Co 3 based on this structure matches well with the observed diffraction pattern of relevant alloys.…”