The crystal structure of Ti2Ni has been determined from powder specimens.The unit cell is facecentered cubic with 96 atoms and dimension a=11.278+_0.001/I at 21 °C.The space group is O~z-Fd3m.64 titanium atoms are in positions 48f and 16c, and 32 nickel atoms are in positions 32e.The atomic parameters, X_~i =0.215_ 0.001 and Xwi=0.810___ 0.002, were determined by trial and error.
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Yurko et al. (1959) studied this question.