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Static Atomic Displacements in Crystalline Solid Solution Alloys

Published online by Cambridge University Press:  15 February 2011

Gene Ice ,
Cullie Sparks ,
J. Lee Robertson ,
J. Ernest Epperson  and
Xiaogang Jiang
Gene Ice
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831–6118
Cullie Sparks
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831–6118
J. Lee Robertson
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831–6118
J. Ernest Epperson
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831–6118
Xiaogang Jiang
Affiliation:
Sandia Livermore National Laboratory, P.O. Box 969, Livermore CA 94550
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Abstract

Atom size differences induce static displacements from an average alloy lattice and play an important role in controlling alloy phase stability and properties. The details of this role however, are difficult to study; chemical order and displacements are strongly interrelated and static displacements are hard to measure. Diffuse x-ray scattering measurements with tunable-synchrotron radiation can now measure element-specific static displacements with an accuracy of ± 0.1 pm and can simultaneously measure local chemical order out to 20 shells or more. Ideal alloys for diffuse scattering analysis with synchrotron radiation, are those that have previously been the most intractable: alloys with small Z contrast, alloys with only local order and alloys with small size differences. The combination of precise characterization of local chemical order and precise measurement of static displacement provides new information that challenges existing alloy models. We report on an ongoing systematic study of static displacements in the Fe/Ni/Cr alloys and compare the observed static displacements to the static displacements predicted by current theories. The availability of more brilliant 3rd generation hard x-ray sources will greatly enhance these measurements.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 437: Symposium DD – Applications of Synchrotron Radiation to III , 1996 , 181
Copyright
Copyright © Materials Research Society 1996

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References

1. Laves, F., in Theory of Alloys Phases, (American Society for Metals, Cleveland OH, 1956), p.124.Google Scholar
2. Pearson, W. B., in A Handbook of Lattice Spacings and Structures of Metals (Pergamon Press, New York, NY, 1958), p. 19.Google Scholar
3. Froyen, S. and Herring, C., J. App. Phys., 52 7165 (1981).Google Scholar
4. Zunger, A. in Statics and Dynamics of Alloy Phase Transformations eds. Turchi, P. E. A. and Gonis, A., (Plenum, N.Y. 1994).Google Scholar
5. Mousseau, N. and Thorpe, M.F., Phys. Rev. B, 45, 2015 (1992).Google Scholar
6. Charkraborty, B., Europhys. Lett., 30 531 (1995).Google Scholar
7. Johnson, D. D., Pinski, F.J. and Stauton, J.B., J. Appl. Phys. 61 3715 (1987).Google Scholar
8. Staunton, J. B., Johnson, D.D. and Gyorffy, B.L., J. Appl. Phys., 61 3693 (1987).Google Scholar
9. Lefebvre, S., Bley, F., Bessiere, M., Fayard, M., Roth, M. and Cohen, J., Acta Cryst. A, 36 1 (1980).Google Scholar
10. Renaud, G., Motta, N., Lancon, F. and Belakhovsky, M., Phys. Rev. B 38 5944 (1988).Google Scholar
11. Scheuer, U. and Lengeler, B., Phys. Rev. B, 44 9883 (1991).Google Scholar
12. Balzarotti, A., Motta, N., Kisiel, A., Zimnal-Starnawska, M., Czyzyk, M.T. and Podgorny, M., Phys. Rev. B, 31 7526 (1985).Google Scholar
13. Aldrich, D.B., Nemanich, R.J. and Sayers, D.E. Phys. Rev. B, 50 15026 (1994).Google Scholar
14. Cai, Y. and Thorpe, M.F., Phys. Rev. B, 46 15872 (1992).Google Scholar
15. Ice, G.E., Sparks, C.J., Habenschuss, A. and Shaffer, L.B., Phys. Rev. Lett., 68 863 (1992).Google Scholar
16. Reinhard, L., Robertson, J.L., Moss, S.C., Ice, G.E., Zschack, P. and Sparks, C.J., Phys. Rev. B, 45 2662 (1992).Google Scholar
17. Schönfeld, B., Ice, G.E., Sparks, C.J., Haubold, H.G., Schweika, W. and Shaffer, L.B., Phys. Status Solidi. B, 183 79 (1994).Google Scholar
18. Jiang, X., Ice, G.E., Sparks, C.J., Robertson, L. and Zschack, P., submitted Phys. Rev. B, (1996).Google Scholar
19. Habenschuss, A., Ice, G.E., Sparks, C.J., Neiser, R. A., Nucl. Inst. and Meth., A266 215 (1988).Google Scholar
20. Ice, G.E., Sparks, C.J. and Shaffer, L., in Resonant Anomalous X-ray Scattering edited by Materlik, G., Sparks, C.J., and Fischer, K.,(North Holland, Amsterdam,1994) p.265.Google Scholar
21. Ice, G.E. and Sparks, C.J., Nucl. Inst. and Meth., A291 110 (1990).Google Scholar
22. Jiang, X., private communication.Google Scholar
23. Hartley, C.S., in NATO-Advanced Research Workshop held at Florida Atlantic University, July 1993 (Boca Raton, FL: Kluwer Academic Publishers, Dordrecht, the Netherlands) p.271.Google Scholar
24. Ice, G.E., Painter, G., Shaffer, L. and Sparks, C.J., Nanostructured Materials, 7 no.1–2, 147 (1996).Google Scholar