Ordered clusters and free volume in a Zr-Ni metallic glass

X. J. Liu; G. L. Chen; X. Hui; T. Liu; Z. P. Lu

doi:10.1063/1.2953475

Ordered clusters and free volume in a Zr-Ni metallic glass

X. J. Liu
, G. L. Chen
, X. Hui
, T. Liu
, Z. P. Lu

University of Science and Technology Beijing
CAS - Institute of High Energy Physics

Research output: Contribution to journal › Article › peer-review

86 Scopus citations

Abstract

The atomic arrangement of a model metallic glass Zr2 Ni was studied by extended x-ray absorption fine structure and x-ray scattering experiments combined with reverse Monte Carlo simulation imposed an additional potential constraint. By an approach to calculating the free volume (FV) on atomic level, we have found a connection between the coordination number and FV, and then revealed that the atomic structure of Zr2 Ni metallic glass is essentially an association of the ordered clusters and FV. The ordered clusters about 1.5 nm consist of a densely packed core (i.e., icosahedral or fcc-type packing) and the surrounding loosely packed clusters with large FV.

Original language	English
Article number	011911
Journal	Applied Physics Letters
Volume	93
Issue number	1
DOIs	https://doi.org/10.1063/1.2953475
State	Published - 2008
Externally published	Yes

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Y1 - 2008

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AB - The atomic arrangement of a model metallic glass Zr2 Ni was studied by extended x-ray absorption fine structure and x-ray scattering experiments combined with reverse Monte Carlo simulation imposed an additional potential constraint. By an approach to calculating the free volume (FV) on atomic level, we have found a connection between the coordination number and FV, and then revealed that the atomic structure of Zr2 Ni metallic glass is essentially an association of the ordered clusters and FV. The ordered clusters about 1.5 nm consist of a densely packed core (i.e., icosahedral or fcc-type packing) and the surrounding loosely packed clusters with large FV.

UR - https://www.scopus.com/pages/publications/47249164094

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Ordered clusters and free volume in a Zr-Ni metallic glass

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