Abstract
X-ray diffraction patterns have been obtained from Cu57 — Zr43 alloy in both amorphous and liquid states. After calculating the structure factor by means of the common Fourier analysis, the atomic radial distribution function was evaluated from which interatomic distance and coordination number were obtained. In the essential feature of the structure factor in the amorphous state was quite similar to that in the liquid state. There is a good agreement between the structure factor determined in this work and that calculated on the basis of the hard sphere mixture model except for the presence of the splitting of a second peak maximum in the former. These results suggest that the atoms in the nearest neighbour distance in the amorphous state consist mainly of the disorderly distributed atoms as those in the liquid state. But a deformed crystalline-like arrangement of atoms as those in a hcp or fcc structure contributes partly to the short range order in the amorphous state.
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