Argonne National Laboratory
Reduced Enrichment for Research and Test Reactors
Nuclear Science and Engineering Division at Argonne
U.S. Department of Energy

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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

Institute of Nuclear Materials
P.O.Box #29, Zarechny, Sverdlovsk region, 624250, Russia

Research and Development Institute of Power Engineering
P.O.Box #788, Moscow, 101000, Russia


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.

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Dr. Jordi Roglans-Ribas
Technical Director, RERTR Department
Nuclear Engineering Division 362
Argonne National Laboratory
9700 South Cass Avenue
Argonne, IL 60439
Fax:  +1 630-252-5161

2016 RERTR Meeting

The 2016 International RERTR Meeting (RERTR-2016) will take place in Belgium. Stay tuned for further details.

2015 RERTR Meeting

The 2015 International RERTR Meeting (RERTR-2015) took place in Seoul, Korea on Oct. 11-14, 2015.
For more information visit RERTR-2015.


ARGONNE NATIONAL LABORATORY, Nuclear Engineering Division, RERTR Department
9700 South Cass Ave., Argonne, IL 60439-4814
A U.S. Department of Energy laboratory managed by UChicago Argonne, LLC

Last modified on July 29, 2008 15:16 +0200