Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-28T19:20:33.010Z Has data issue: false hasContentIssue false
  • English
  • Français

In-situ High Temperature X-ray Diffraction Study of the Am-O System

Published online by Cambridge University Press:  16 February 2017

E. Epifano ,
R. C. Belin ,
J-C Richaud ,
R. Vauchy ,
M. Strach ,
F. Lebreton ,
T. Delahaye ,
C. Guéneau  and
P. M. Martin
E. Epifano*
Affiliation:
CEA, DEN/DTEC/SECA/LCC, Cadarache, 13108 Saint-Paul-Lez-Durance, France
R. C. Belin
Affiliation:
CEA, DEN/DTEC/SECA/LCC, Cadarache, 13108 Saint-Paul-Lez-Durance, France
J-C Richaud
Affiliation:
CEA, DEN/DTEC/SECA/LCC, Cadarache, 13108 Saint-Paul-Lez-Durance, France
R. Vauchy
Affiliation:
CEA, DEN/DTEC/SECA/LCC, Cadarache, 13108 Saint-Paul-Lez-Durance, France
M. Strach
Affiliation:
CEA, DEN/DTEC/SECA/LCC, Cadarache, 13108 Saint-Paul-Lez-Durance, France
F. Lebreton
Affiliation:
CEA, DEN/DTEC/SECA/LCC, Cadarache, 13108 Saint-Paul-Lez-Durance, France
T. Delahaye
Affiliation:
CEA, DEN/DRCP/SERA/LCAR, Marcoule, 30207 Bagnols-sur-Cèze Cedex, France
C. Guéneau
Affiliation:
CEA, DEN/DPC/SCCME/LM2T, Saclay, 91191 Gif sur Yvette, France
P. M. Martin
Affiliation:
CEA, DEN/DTEC/SECA/LCC, Cadarache, 13108 Saint-Paul-Lez-Durance, France
*
*(Email: enrica.epifano@cea.fr)
Get access

Abstract

In the frame of minor actinide recycling, (U,Am)O2 are promising transmutation targets. To assess the thermodynamic properties of the U-Am-O system, it is essential to have a thorough knowledge of the binary phase diagrams, which is difficult due to the lack of thermodynamic data on the Am-O system. Nevertheless, an Am-O phase diagram modelling has been recently proposed by Gotcu. Here, we show a recent investigation of the Am-O system using in-situ High Temperature X-ray Diffraction under controlled atmosphere. By coupling our experimental results with the thermodynamic calculations based on the Gotcu model, we propose for the first time a relation between the lattice parameter and the departure from stoichiometry.

Keywords

X-Ray diffractionactinideoxide
Type
Articles
Information
MRS Advances , Volume 1 , Issue 62: Scientific Basis for Nuclear Waste Management XXXIX , 2016 , pp. 4133 - 4137
Copyright
Copyright © Materials Research Society 2017 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Horlait, D., Lebreton, F., Delahaye, T., Herlet, N., Dehaudt, P., Procedia Chem., vol. 7, pp. 485–492, 2012.CrossRefGoogle Scholar
Prieur, D., Jankowiak, A., Delahaye, T., Herlet, N., Dehaudt, P., Blanchart, P., J. Nucl. Mater., vol. 414, no. 3, pp. 503–507, 2011.Google Scholar
Lebreton, F., Belin, R. C., Delahaye, T., Blanchart, P., J. Solid State Chem., vol. 196, pp. 217–224, 2012.CrossRefGoogle Scholar
Sari, C. and Zamorani, E., J. Nucl. Mater., vol. 37, no. 3, pp. 324–330, 1970.CrossRefGoogle Scholar
Okamoto, H., J. Phase Equilibria, vol. 12, no. 6, pp. 696–697, 1991.Google Scholar
Thiriet, C. and Konings, R. J. M., J. Nucl. Mater., vol. 320, no. 3, pp. 292–298, 2003.CrossRefGoogle Scholar
Okamoto, H., J. Phase Equilibria Diffus., vol. 32, no. 6, pp. 572–573, 2011.CrossRefGoogle Scholar
Zachariasen, W. H., Acta Crystallogr., vol. 2, no. 6, pp. 388–390, 1949.CrossRefGoogle Scholar
Templeton, D. H., Dauben, C. H., J. Am. Chem. Soc., vol. 75, no. 18, pp. 4560–4562, 1953.CrossRefGoogle Scholar
Chikalla, T. D., Eyring, L., J. Inorg. Nucl. Chem., vol. 30, no. 1, pp. 133–145, 1968.CrossRefGoogle Scholar
Gotcu-Freis, P., Colle, J.-Y., Guéneau, C., Dupin, N., Sundman, B., Konings, R. J. M., J. Nucl. Mater., vol. 414, no. 3, pp. 408–421, 2011.CrossRefGoogle Scholar
“OECD NEA/NSC: Thermodynamics of Advanced Fuels – International Database (TAF-ID).” [Online]. Available: https://www.oecd-nea.org/science/taf-id/. [Accessed: 22-Jan-2017].Google Scholar
Vauchy, R., Belin, R. C., Robisson, A.-C., Hodaj, F., J. Eur. Ceram. Soc., vol. 34, no. 10, pp. 2543–2551, 2014.CrossRefGoogle Scholar
Arab-Chapelet, B., Grandjean, S., Nowogrocki, G., and Abraham, F., “Synthesis of new mixed actinides oxalates as precursors of actinides oxide solid solutions,” J. Alloys Compd., vol. 444–445, pp. 387–390, Oct. 2007.Google Scholar
Fahey, J. A., Turcotte, R. P., and Chikalla, T. D., Inorg. Nucl. Chem. Lett., vol. 10, no. 6, pp. 459–465, 1974.CrossRefGoogle Scholar
Martin, D. G., J. Nucl. Mater., vol. 152, no. 2–3, pp. 94–101, 1988.CrossRefGoogle Scholar