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Short range order around Sc atoms in Fe90Sc10 nanoglasses using fluorescence X-ray absorption spectroscopy

Published online by Cambridge University Press:  13 March 2012

A. Léon ,
J. Rothe ,
H. Hahn  and
H. Gleiter
A. Léon
Affiliation:
Karlsruhe Institute of Technology, Institute of Nanotechnology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany. e-mail: [email protected]; [email protected]; [email protected]
J. Rothe
Affiliation:
Karlsruhe Institute of Technology, Institute for Nuclear Waste Disposal, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
H. Hahn
Affiliation:
Karlsruhe Institute of Technology, Institute of Nanotechnology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany. e-mail: [email protected]; [email protected]; [email protected]
H. Gleiter
Affiliation:
Karlsruhe Institute of Technology, Institute of Nanotechnology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany. e-mail: [email protected]; [email protected]; [email protected]
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Abstract

X-ray absorption spectroscopy has been applied to probe the local structure of FeSc nanostructured amorphous solids around Sc atoms. At the Sc K-edge, the Fe90Sc10 nanoglass is characterized by a very short range order (EXAFS oscillations are only present up to k = 8 Å-1). A drastic difference in the phase and the amplitude of the nanoglass EXAFS signal compared to the amorphous ribbon indicating a different local structure around Sc atoms in both structures is observed. In addition, the changes in the local structure around Sc atoms are more significant than around Fe atoms.

Keywords

Metallic glassesamorphous alloysnanocompositesX-ray absorption spectroscopyEXAFS/XANES
Type
Research Article
Information
Metallurgical Research & Technology , Volume 109 , Issue 1 , 2012 , pp. 35 - 39
Copyright
© EDP Sciences 2012

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