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Recovery of SRO Parameters and Pairwise Atomic Displacements in a Fe46.5Ni53.5 Alloy

Published online by Cambridge University Press:  15 February 2011

X. Jiang ,
G. E. Ice ,
C. J. Sparks  and
P. Zschack
X. Jiang
Affiliation:
Sandia Livermore National Laboratory, P.O. Box 969, Livermore, CA 94550
G. E. Ice
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831–6118
C. J. Sparks
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831–6118
P. Zschack
Affiliation:
Oak Ridge Institute of Science and Education, Oak Ridge, TN 37831
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Abstract

Resonant (anomalous) x-ray scattering is used to alter the contrast between atoms nearby in the periodic table to recover local pair correlations. Both Warren-Cowley short-range order parameters and chemically specific interatomic distances are recovered from diffusely scattered x-ray intensities measured at three different x-ray energies (3λ method). Analysis of the statistical and systematic errors shows that the average values for the number and kinds of first nearest neighbors are recovered to about one atom in one hundred and their interatomic distances to about ±0.002 Å.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 375: Symposia AA – Applications of Synchrotron Radiation Techniques to Materials Science , 1994 , 267
Copyright
Copyright © Materials Research Society 1995

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