Jm. Cadogan et al., ON THE TERNARY INTERMETALLIC PHASES FORMED BY YFE12-XGAX 1-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-2), Materials letters, 18(1-2), 1993, pp. 39-43
Using X-ray diffraction and Fe-57 Mossbauer spectroscopy we have inves
tigated recent claims that intermetallics of nominal 1-12 composition
YFe12-xGax (1 less than or equal to x less than or equal to 2) form wi
th the tetragonal ThMn12 structure. Contrary to earlier reports, we ha
ve only observed the formation of either the hexagonal Th2Ni17 or rhom
bohedral Th2Zn17 structures plus alpha-Fe(Ga).