PL EN


Preferences help
enabled [disable] Abstract
Number of results
2002 | 102 | 2 | 207-213
Article title

Formation of Nanostructures in UO_2 Fuel at High Burn-ups

Authors
Content
Title variants
Languages of publication
EN
Abstracts
EN
In the present paper it is assumed that above a limiting value of fission fluency (burn-up) a more intensive process of irradiation induced chemical interaction occurs. A significant part of fission gas product is thus expected to be chemically bounded in the matrix of UO_2 fuel. The fission gas atoms substituting, for example, uranium atoms in the crystallographic lattice can form weak facets. At a certain saturation condition, division of the grains can occur at the weak facets and the increase in fission-gas-products release may be expected. The fact that the process of grain division for high burn-ups (70-80 MWd/kgU) forms an extremely fine structure up to a temperature as high as 1100^ºC and simultaneously the observed decrease in fission gas concentration in the fuel supports this concept. The analysis of fission gas concentration change due to the formation of nanostructures in UO_2 fuel at high burn-ups in terms of total surface area change in a function of burn-up and knock-out process is presented.
Keywords
EN
Publisher

Year
Volume
102
Issue
2
Pages
207-213
Physical description
Dates
published
2002-08
received
2001-09-23
Contributors
author
  • Institute of Atomic Energy, 05-400 Otwock-Świerk, Poland
author
  • Institute of Heat Engineering, Warsaw University of Technology, Nowowiejska 25, 00-665 Warsaw, Poland
References
  • 1. Hj. Matzke, H. Blank, M. Coquerelle, I.L.F. Ray, C. Ronchi, C.T. Walker, J. Nucl. Mater., 166, 165, 1989
  • 2. K. Lassmann, C.T. Walker, J van de Laar, F. Lindstrom, J. Nucl. Mater., 226, 1, 1995
  • 3. I.L.F. Ray, Hj. Matzke, H.A. Thiele, M. Kinoshita, J. Nucl. Mater., 245, 115, 1997
  • 4. H. Klaykamp, J. Nucl. Mater., 171, 181, 1990
  • 5. J.O. Barner, M.E. Cunningham, M.D. Freshley, D.D. Lanning, J. Nucl. Mater., 188, 19, 1992
  • 6. C. Bagger, M. Mogensen, C.T. Walker, J. Nucl. Mater., 211, 11, 1994
  • 7. I.L.F. Ray, Hj. Matzke, J. Nucl. Mater., 250, 242, 1997
  • 8. J. Spino, D. Papaioannou, I. Ray, D. Baron, in: Intern. Seminar on Fission Gas Behaviour in Water Reactor Fuels, September 2000, Cadarache (France), Nuclear Energy Agency OECD Publ., Paris 2002, p. 247
  • 9. K. Nogita, K. Une, Nucl. Instrum. Methods Phys. Res. B, 91, 301, 1994
  • 10. C. Bagger, M. Mogensen, C.T. Walker, J. Nucl. Mater., 211, 11, 1994
  • 11. J.B. Ainscough, B.W. Oldfield, J.O. Ware, J. Nucl. Mater., 49, 117, 1973/74
  • 12. C. Vitanza, E. Kolstad, U. Gracini, in: Proc. Am. Nucl. Soc., Topical Meeting on Light Water Reactors Fuel Performance, American Nuclear Society, Portland (OR) 1979, p. 361
  • 13. M. Szuta, M.S. El-Koliel, Acta Phys. Pol. A, 96, 143, 1999
  • 14. D.A. MacInnes, P.W. Winter, J. Phys. Chem. Solids, 49, 143, 1988
  • 15. S. Bremier, C.T. Walker, R. Manzel, Ref. [8], p. 93
  • 16. M. Szuta, J. Nucl. Mater., 58, 278, 1975
  • 17. M. Szuta, J. Nucl. Mater., 130, 434, 1985
  • 18. M. Szuta, J. Nucl. Mater., 210, 178, 1994
  • 19. M. Szuta, Acta Phys. Pol. A, 89, 451, 1996
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv102n208kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.