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The Role of Sn, Zr and Hf in the Radiation Damage in II, III, IV and V Pyrochlores

Published online by Cambridge University Press:  30 March 2012

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
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

Ceramics based on the general compositions CaLnXNbO7 (where Ln = La, Nd and Sm, and X=Zr and Sn) have been prepared, and irradiated with 1 MeV Kr ions at the IVEM-TANDEM user facility. The radiation tolerance of these materials has been found to be less than Zr and Hf equivalents. The results also suggest that the amorphisation cross section for these materials is related to the Ln component, and is similar to those observed for Zr and Hf equivalents.

Type
Research Article
Copyright
Copyright © Materials Research Society 2012

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