2006 International RERTR Meeting
Abstracts and Available Papers Presented at the Meeting
A Method of
Determining a Start of Porosity and Defect Formation
in the Fuel Elements with U-Mo Fuel
O.A. GOLOSOV, M.S.
LYUTIKOVA
Institute of Nuclear Materials
P.O.Box #29, Zarechny, Sverdlovsk region, 624250, Russia
E.F. KARTASHEV, V.A. LUKICHEV
Research and Development Institute of Power Engineering
P.O.Box #788, Moscow, 101000, Russia
ABSTRACT
Fuel elements (FE) with dispersed U-Mo fuel and Al matrix were tested in the research reactor IVV-2M. At a certain value of fuel burn up gas pores formed and united with test time leading to a formation of defects as extended gas cavities and ruptures in a fuel meat and pillowing of FE claddings. The moment the pores start to form and unite with the ruptures in the fuel meat is very difficult to fix while measuring their sizes even in plate FE. Since this formation is very important for the analysis of U-Mo fuel behavior under different operation conditions and for working out the measures to extend the operation life of the FE with U-Mo fuel relevant to high values of burn up. A gas pores form changing with burn up and changes of a thickness of an (U,Mo)Alx layer near the pores were analyzed and the method to determine the moment of the gas pore formation and ruptures of the fuel meat was suggested.
Full paper in PDF format
- A Method of
Determining a Start of Porosity and Defect Formation
in the Fuel Elements with U-Mo Fuel, O.A. Golosov
et al.
[PDF, 1.2MB, 8 pages]
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Contact:
Dr. Jordi Roglans-Ribas
Technical Director, RERTR Department
Nuclear Engineering Division – 362
Argonne National Laboratory
9700 South Cass Avenue
Argonne, IL 60439
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