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Radiation Tolerance of A2Ti2O7 Materials - A Question of Bonding?

Published online by Cambridge University Press:  19 October 2011

Karl Whittle ,
Gregory R Lumpkin ,
Katherine L Smith ,
Mark G Blackford ,
Elizabeth J Harvey  and
Nestor J Zaluzec
Karl Whittle
Affiliation:
k.r.whittle@shef.ac.uk, University of Sheffield, Department of Engineering Materials, Sir Robert Hadfield Building, Mappin Street, Sheffield, S1 3JD, United Kingdom
Gregory R Lumpkin
Affiliation:
grl@ansto.gov.au, Australian Nuclear Science and Technology Organisation, Sydney, NSW 2234, Australia
Katherine L Smith
Affiliation:
kls@ansto.gov.au, Australian Nuclear Science and Technology Organisation, Sydney, NSW 2234, Australia
Mark G Blackford
Affiliation:
mgb@ansto.gov.au, Australian Nuclear Science and Technology Organisation, Sydney, NSW 2234, Australia
Elizabeth J Harvey
Affiliation:
ehar03@esc.cam.ac.uk, University of Cambridge, Cambridge, CB2 3EQ, United Kingdom
Nestor J Zaluzec
Affiliation:
zaluzec@aaem.amc.anl.gov, Argonne National Laboratory, Chicago, IL, 60439, United States
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Abstract

The resistance of Ln2Ti2O7 (Ln=lanthanide) compounds to radiation damage is an important topic in the understanding and development of new materials by which radioactive nuclear waste can safely be immobilised. A model has been developed, from previously published density functional theory and molecular orbital theory simulations of the band structure for Ln2Ti2O7 materials. This model provides a chemical interpretation of radiation stability.

Keywords

radiation effectsion-implantationcrystalline
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 985: Symposium NN – Scientific Basis for Nuclear Waste Management XXX , 2006 , 0985-NN09-02
Copyright
Copyright © Materials Research Society 2007

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References

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