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Preliminary Study of Corrosion Mechanisms of Actinides Alloys: Calibration of FT-IR Spectroscopy

Published online by Cambridge University Press:  01 February 2011

Véronique Magnien ,
Marx Cadignan ,
Olivier Faivret  and
Gaelle Rosa
Véronique Magnien
Affiliation:
[email protected], CEA, DRMN/SEMP, Centre de Valduc, Is sur Tille, 21120, France
Marx Cadignan
Affiliation:
[email protected], CEA, Centre de Valduc, Is sur tille, 21120, France
Olivier Faivret
Affiliation:
[email protected], CEA, Centre de Valduc, Is sur tille, 21120, France
Gaelle Rosa
Affiliation:
[email protected], CEA, Centre de Valduc, Is sur tille, 21120, France
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Abstract

In situ analyzes of gaseous atmospheres could be performed by FT-IR spectroscopy in order to study the corrosion reactions of actinides. Nevertheless experimental conditions and the nature of studied species have a strong effect on IR absorption laws. Thus a prior calibration of our set-up is required to obtain an accurate estimation of gas concentration. For this purpose, the behavior of several air pure gases has been investigated according to their concentration from IR spectra. Reproducible results revealed subsequent increases of the most significant peak areas with gas pressure and small deviations from Beer Lambert's law. This preliminary work allowed to determine precise absorption laws for each studied pure gas in our in situ experimental conditions. Besides our FT-IR set-up was well suitable to quantitative analysis of gaseous atmosphere during corrosion reactions. Finally the effect of foreign gas will be investigated through more complex air mixtures to obtain a complete calibration network.

Keywords

actinideinfrared (IR) spectroscopycorrosion
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1104: Symposium NN – Actinides 2008—Basic Science, Applications and Technology , 2008 , 1104-NN07-10
Copyright
Copyright © Materials Research Society 2008

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