Volume 109, Number 1, 2012Topical issue on "Metallic glasses and related composites"
|Page(s)||35 - 39|
|Published online||13 March 2012|
Short range order around Sc atoms in Fe90Sc10 nanoglasses using fluorescence X-ray absorption spectroscopy
Karlsruhe Institute of Technology, Institute of
Nanotechnology, Hermann-von-Helmholtz-Platz 1, 76344
e-mail: firstname.lastname@example.org; email@example.com; firstname.lastname@example.org
2 Karlsruhe Institute of Technology, Institute for Nuclear Waste Disposal, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
Received: 16 November 2011
Accepted: 12 December 2011
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.
Key words: Metallic glasses / amorphous alloys / nanocomposites / X-ray absorption spectroscopy / EXAFS/XANES
© EDP Sciences 2012
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