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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
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.

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Articles
Copyright
Copyright © Materials Research Society 2012

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References

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