Atomic structure of Zr–Cu–Al and Zr–Ni–Al amorphous alloys

We report on the atomic structure via pair distribution function (PDF) analysis of metallic glasses of the Zr–Cu–Al and Zr–Ni–Al families. The PDFs were evaluated from the X-ray diffraction data. Transmission X-ray diffraction spectra of the investigated samples were measured using monochromatic, hi...

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Bibliographic Details
Published in:Journal of alloys and compounds 2009-03, Vol.471 (1), p.70-73
Main Authors: Antonowicz, J., Louzguine-Luzgin, D.V., Yavari, A.R., Georgarakis, K., Stoica, M., Vaughan, G., Matsubara, E., Inoue, A.
Format: Article
Language:English
Subjects:
Atomic scale structure
Chemical and Process Engineering
Chemical Sciences
Condensed matter: structure, mechanical and thermal properties
Disordered solids
Engineering Sciences
Exact sciences and technology
Glasses
Material chemistry
Metallic glasses
Physics
Structure of solids and liquids
crystallography
X-ray diffraction
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Summary:We report on the atomic structure via pair distribution function (PDF) analysis of metallic glasses of the Zr–Cu–Al and Zr–Ni–Al families. The PDFs were evaluated from the X-ray diffraction data. Transmission X-ray diffraction spectra of the investigated samples were measured using monochromatic, high-energy synchrotron radiation. In this work we demonstrate the effect of composition on the pair distribution functions. A variation of first PDF peak shape was observed on modification of Cu and Al content. A split of the first PDF peak was found to be more pronounced in Zr–Ni–Al than in Zr–Cu–Al glasses suggesting differences in their atomic structures.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2008.03.092