Structure Characterization of Amorphous Al₈₃Ni₁₀Ce₅Si₂
under the Relaxed Annealing¹

W.-M. Wang, P. Jia, S. H. Wang, Y. C. Niu, and X. F. Bian

Key Lab of Liquid Structure and Heredity of the Materials, Shandong University, Jinan, 250061, P. R. China

Received August 21, 2005

Abstract—In order to trace the structure evolution of amorphous Al₈₃Ni₁₀Ce₅Si₂ before crystallization, the
alloy viscosity () was measured by methods after annealing treatment at various temperatures. It is found that
the alloy viscosity decreases initially and then increases with the annealing temperature. The X-ray diffraction
(XRD) patterns show that the variation of the height of the main peak with annealing temperature (H_max – T) is
similar to that of the viscosity versus annealing temperature ( – T), implying that the short-range order (SRO)
in the amorphous alloy has changed. Additionally, the locations of the main peak and prepeak in the XRD
curves move toward the high angle, implying that the characteristic spacing in the amorphous alloy decreases
and that its volume decreases with the increase of the annealing temperature. The volume decrease is also con-
firmed by the development of the grooves on the free surface of the amorphous ribbon.

DOI: 10.1134/S1087659606050038

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