| Issue |
J. Phys. IV France
Volume 7, Number C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
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| Page(s) | C2-1003 - C2-1004 | |
| DOI | https://doi.org/10.1051/jp4:19972116 | |
J. Phys. IV France 7 (1997) C2-1003-C2-1004
DOI: 10.1051/jp4:19972116
The Local Atomic Structure Study of Ordered Fe3Si and Disordered by Grinding Fe75Si25 Alloys with EXAFS and Mössbauer Techniques
E.V. Voronina1, A.N. Deev1, V.M. Fomin2 and E.P. Yelsukov21 Udmurt State University, Izhevsk 426037, Russia
2 PhTI UrB RAS, 132 Kirov Str., Izhevsk 426001, Russia
Abstract
The ordered Fe3Si and disordered Fe75Si25 alloys are studied by X-ray diffraction, Mössbauer spectroscopy and EXAFS-analysis. The X-ray diffraction pattern and Mössbauer spectrum of the Fe75Si25 alloy in comparison with those of the ordered sample give evidence for the set of local atomic configurations of Fe atom and are characteristic for the disordered bcc samples of the Fe-Si system. The comparison of X(k) in these alloys shows noticeable differences, especially in 3.5-5 Å-1region. Combining all the data obtained with the model X(k) one can draw the conclusion that the changes in the Fe atom local structure of the Fe75Si25 alloy are connected with breaking a long-range order but do not correspond to a chaotic distribution of atoms.
© EDP Sciences 1997