Issue
J. Phys. IV France
Volume 7, Number C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
Page(s) C2-1151 - C2-1152
DOI https://doi.org/10.1051/jp4:19972168
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure

J. Phys. IV France 7 (1997) C2-1151-C2-1152

DOI: 10.1051/jp4:19972168

Mechanical-Alloying and Lattice Distortions in Ball-Milled CuFe

V.G. Harris1, K.M. Kemner1, B.N. Das1, J.C. Woicik2, P. Crespo3, A. Hernando3 and A. Garcia Escorial4

1  US. Naval Research Laboratory, Washington, DC 20375, U.S.A.
2  National Institute of Standards and Technology, Gaithesburg, MD 20899, U.S.A.
3  Instituto de Magnetismo Aplicado, Las Rozas, 28230 Madrid, Spain
4  CENIM-CSIC, 28040 Madrid, Spain


Abstract
Extended X-ray absorption fine structure (EXAFS) measurements were used to obtain element-specific, structural and chemical information of the local environments around Cu and Fe atoms in high-energy ball-milled samples. Analysis of the EXAFS data shows both Fe and Cu atoms reside in face-centered-cubic sites with the first coordination sphere consisting of a mixture of Fe and Cu atoms reflecting the as-prepared stoichiometry. The calculated bond distances indicate a dilation in the bonds between unlike neighbors which accounts for the lattice expansion measured by X-ray diffraction.



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