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Radiation Damage of II, III, IV, V Pyrochlores - CaLnZrNbO7

Published online by Cambridge University Press:  30 March 2012

Karl R. Whittle ,
Massey de los Reyes ,
Yan Gao ,
Mark G. Blackford ,
Nestor J. Zaluzec  and
Gregory R. Lumpkin
Karl R. Whittle
Affiliation:
Institute of Materials Engineering, ANSTO, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia
Massey de los Reyes
Affiliation:
Institute of Materials Engineering, ANSTO, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia
Yan Gao
Affiliation:
Institute of Materials Engineering, ANSTO, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia
Mark G. Blackford
Affiliation:
Institute of Materials Engineering, ANSTO, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia
Nestor J. Zaluzec
Affiliation:
Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
Gregory R. Lumpkin
Affiliation:
Institute of Materials Engineering, ANSTO, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia
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Abstract

Pyrochlores based on the general composition CaLnZrNbO7 (where Ln = La, Nd, Sm, Gd and Ho) have been prepared, and irradiated through the crystalline-amorphous transition, with 1 MeV Kr ions at the IVEM-TANDEM user facility. The obtained critical temperatures show a decrease from La to Gd (∼680 K to ∼230 K), with Ho being resistant to amorphisation at 50K. The results suggest that the amorphisation cross section for these materials is directly related to the Ln component.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1475: Symposium NW – Scientific Basis for Nuclear Waste Management XXXV , 2012 , imrc11-1475-nw35-o63
Copyright
Copyright © Materials Research Society 2012

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References

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