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A New Criterion for the Degradation of a Defective Spent Fuel Rod under Dry Storage Conditions Based on Nuclear Ceramic Cracking

Published online by Cambridge University Press:  01 February 2011

Lionel Desgranges ,
François Charollais ,
Isabelle Felines ,
Cécile Ferry  and
Jean Radwan
Lionel Desgranges
Affiliation:
[email protected], CEA, DEN/DEC, Saint Paul lez Durance, France
François Charollais
Affiliation:
[email protected], CEA, DEN/DEC, Saint Paul lez Durance, France
Isabelle Felines
Affiliation:
[email protected], CEA, DEN/DEC, Saint Paul lez Durance, France
Cécile Ferry
Affiliation:
[email protected], CEA, DEN/DPC, Saclay, France
Jean Radwan
Affiliation:
[email protected], CEA, DEN/DPC, sacaly, France
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Abstract

Experimental results using environmental SEM on intentionally defected fuel particles showed that oxidation induced cracking could lead to the degradation of HTR coated particles. The interpretation proposed for the swelling resulting from cracking can be extended to irradiated nuclear fuels. That is why a new criterion was proposed to defined safe handling of defective fuel in dry storage condition. This criterion defines the time needed to create an oxidized layer thickness leading to significant cracking.

Keywords

nuclear materialsoxidationstorage
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1124: Symposium Q – Scientific Basis for Nuclear Waste Management XXXII , 2008 , 1124-Q02-06
Copyright
Copyright © Materials Research Society 2009

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References

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