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The heat capacities of amorphous and crystalline Ni 0.667 Zr 0.333 and Ni 0.333 Zr 0.667 alloys were measured in the temperature range from ∼12 K to the crystallization points for the former or to ∼900 K for the latter. The results together with the data on the thermodynamic properties of the Ni-Zr melt were used for the calculation of the absolute entropy of the amorphous alloys on the assumption that the entropies of a substance in undercooled liquid and glassy states coincide at the glass-transition point. The entropy and heat capacity of the amorphous alloys was found to exceed those of the crystalline ones. The residual entropy of Ni 0.333 Zr 0.667 and Ni 0.667 Zr 0.333 amorphous alloys at 0 K is, respectively, 2.7 ± 2.1 and 0.2 ± 1.7 J mol −1 K −1 , which is significantly below the residual entropy values typical for traditional oxide glasses (4-17 J mol −1 K −1 ). This points to a much higher degree of order in amorphous metallic alloys as compared to glassy oxides.

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