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On the Characterisatiopn of Order-Disorder in Ion-Irradiated Pyrochlore Compounds by Electron Scattering Methods

Published online by Cambridge University Press:  20 February 2017

Gregory R. Lumpkin ,
Karl R. Whittle ,
Mark G. Blackford ,
Katherine L. Smith  and
Nestor J. Zaluzec
Gregory R. Lumpkin
Affiliation:
Institute of Materials Engineering, Australian Nuclear Science and Technology Organisation, PMB1, Menai, NSW 2234, Australia
Karl R. Whittle
Affiliation:
Institute of Materials Engineering, Australian Nuclear Science and Technology Organisation, PMB1, Menai, NSW 2234, Australia
Mark G. Blackford
Affiliation:
Institute of Materials Engineering, Australian Nuclear Science and Technology Organisation, PMB1, Menai, NSW 2234, Australia
Katherine L. Smith
Affiliation:
Institute of Materials Engineering, Australian Nuclear Science and Technology Organisation, PMB1, Menai, NSW 2234, Australia
Nestor J. Zaluzec
Affiliation:
Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
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Abstract

Selected area electron diffraction patterns are routinely used to determine the effects of irradiation damage in nuclear materials. Using zone axis orientations, the intensities of Bragg beams change from a dynamical to kinematic-like state due to the presence of amorphous domains in the material. Such changes in beam intensities, together with the increased diffuse scattering from the increasing amorphous fraction, present a major obstacle to the determination of cation or anion disorder in the crystalline fraction.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1122: Symposium O – Structure/Property Relationships in Fluorite-Derivative Compounds , 2008 , 1122-O09-03
Copyright
Copyright © Materials Research Society 2009

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References

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