Time and amplitude dependences of the damping decrement and shear modulus upon irreversible structural relaxation in a Zr-Cu-Ni-Al-Ti bulk metallic glass

被引：0
|
作者：
N. P. Kobelev
E. L. Kolyvanov
V. A. Khonik
机构：
[1] Russian Academy of Sciences,Institute of Solid
[2] Voronezh State Pedagogical University,State Physics
来源：
Physics of the Solid State | 2005年 / 47卷
关键词：
Spectroscopy; Activation Energy; State Physics; Glass Transition; Time Dependence;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The time dependences of the irreversible relaxation of the damping decrement and the shear modulus of a Zr52.5Ti5Cu17.9Ni14.6Al10 bulk metallic glass are investigated using an inverse torsion pendulum in the range from room temperature to ∼650 K. The spectrum of activation energies of irreversible structural relaxation is evaluated from the results obtained. Analysis of the amplitude dependences of the damping decrement and the shear modulus allows the conclusion that the relaxation centers responsible for the amplitude dependence differ from those associated with the irreversible structural relaxation at temperatures below and in the vicinity of the glass transition point.
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页码：411 / 415
页数：4
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