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A New Modelling of the Kinetics of Uranium Dioxide Oxidation in Air

Published online by Cambridge University Press:  01 February 2011

L. Desgranges  and
C. Poinssot
L. Desgranges
Affiliation:
Commissariat à l'Energie Atomique, Nuclear Energy Division, Department of Fuel Studies, CEA CADARACHE, F-13107 St Paul Lez Durance, France
C. Poinssot
Affiliation:
Commissariat à l'Energie Atomique, Nuclear Energy Division, Department of Physics and Chemistry, CEA SACLAY, F-91191 Gif-sur-Yvette, France
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Abstract

A finite difference based modelling of the oxidation of uranium oxide is presented. This modelling involves only oxygen diffusion from the atmosphere into the solid and then inside the solid described with Fick's law. Some calculations performed with this modelling evidenced that the shape of the weight gain curves observed experimentally could be reproduced. This modelling is compared to the formula previously used to interpret the thermograms.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 807: Symposium Scientific Basis for Nuclear Waste Management XXVII , 2003 , 65
Copyright
Copyright © Materials Research Society 2004

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References

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