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Structural evaluation in Zr15Al5Ni57Y23bulk metallic glass under high pressure

Published online by Cambridge University Press:  01 February 2011

Gong Li ,
Yunpeng Gao ,
Tao Xu ,
Qin Jing ,
Jing Liu  and
Riping Liu
Gong Li
Affiliation:
[email protected], Yanshan University, Key Lab of Metastable Materials Mater Science &Technology, 438,Hebei Avenue,, Qinhuangdao, 066004, China, People's Republic of
Yunpeng Gao
Affiliation:
[email protected], Yanshan University, Qinhuangdao, 066004, China, People's Republic of
Tao Xu
Affiliation:
[email protected], Yanshan University, Qinhuangdao, 066004, China, People's Republic of
Qin Jing
Affiliation:
[email protected], Yanshan University, Qinhuangdao, 066004, China, People's Republic of
Jing Liu
Affiliation:
[email protected], Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100039, China, People's Republic of
Riping Liu
Affiliation:
[email protected], Yanshan University, Qinhuangdao, 066004, China, People's Republic of
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Abstract

The compression behavior of Zr15Al5Ni57Y23 bulk metallic glass is investigated at room temperature using in-situ high pressure energy dispersive X-ray diffraction with a synchrotron radiation source. The structural information of the atomic configuration about Zr15Al5Ni57Y23 bulk amorphous alloy such as coordination number (CN), neighbor atomic distance is gained by Fourier transformation under different pressure. The investigation shows that the structure of Zr15Al5Ni57Y23 bulk metallic glass is stable under the pressure ranging from zero to 31.7 GPa, but the degree of short-range order changes by the pressure altering the second and the third nearest neighbor local atomic configuration of the amorphous alloy.

Keywords

amorphousx-ray diffraction (XRD)structural
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1048: Symposium Z – Bulk Metallic Glasses–2007 , 2007 , 1048-Z05-10
Copyright
Copyright © Materials Research Society 2008

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