Evidence of polymorphous amorphous-to-quasicrystalline phase transformation in Zr66.7Pd33.3 metallic glass

被引:22
作者
Jiang, JZ
Saksl, K
Saida, J
Inoue, A
Franz, H
Messel, K
Lathe, C
机构
[1] Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark
[2] Japan Sci & Technol Corp, ERATO, Inoue Superliquid Glass Project, Sendai, Miyagi 9800807, Japan
[3] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[4] DESY, HASYLAB, D-22603 Hamburg, Germany
关键词
D O I
10.1063/1.1447015
中图分类号
O59 [应用物理学];
学科分类号
摘要
The amorphous-to-quasicrystalline phase transformation and the pressure effect on the transformation in a Zr66.7Pd33.3 metallic glass have been investigated by in situ x-ray diffraction measurements using synchrotron radiation. It is found that the transformation is a polymorphous reaction and external pressure enhances the onset temperature for the formation of quasicrystals with a rate of 22 K/GPa while the temperature interval for the stability of quasicrystals remains almost unchanged in the pressure range of 0-4 GPa. The enhancement of the onset temperature for the formation of quasicrystals has been further discussed with the nucleation theory. (C) 2002 American Institute of Physics.
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页码:781 / 783
页数:3
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