Phase equilibrium in the Gd-Ni-In system at 870 K.

The isothermal section of the Gd-Ni-In system at T = 870 K was constructed by means of X-ray powder diffraction and EDX analyses. Thirteen ternary compounds, namely GdNi9In2 (YNi9In2 type), Gd1−1.22Ni4In1-0.78 (MgCu4Sn type), GdNiIn2 (MgCuAl2 type), Gd4Ni11In20 (U4Ni11Ga20 type), GdNi1.0-0.7In1.0-1.3 (ZrNiAl type), Gd2Ni2In (Mn2AlB2 type), Gd2Ni1.78In (Mo2FeB2 type), Gd11Ni4In9 (Nd11Pd4In9 type), Gd12Ni6In (Sm12Ni6In type), Gd6Ni2.39In0.61 (Ho6Co2Ga type), Gd14Ni3.29In2.71 (Lu14Co3In3 type), Gd3Ni0.05In0.95 (AuCu3 type) and ~Gd6Ni2In exist in the Gd-Ni-In system at this temperature. The substitution of Ni for In was observed for GdNi1.0-0.7In1.0-1.3 and of In for Gd for Gd1-1.22Ni4In1-0.78. Besides, Gd can enter the structure of NiIn (CoSn type) leading to a solid solution Gd0-0.14NiIn1-0.98. [ABSTRACT FROM AUTHOR]