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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Abstracts and Available Papers Presented at the
1998 International RERTR Meeting

Development and Compatibility of Magnesium Matrix Fuel Plates
Clad with 6061 Aluminum Alloy

T. C. Wiencek, I. G. Prokofiev, and D. J. McGann
Argonne National Laboratory
Argonne, IL USA


Aluminum is a commonly used matrix for research reactor fuel plates. It has been postulated that a reaction between the fuel and the aluminum matrix may reduce the irradiation stability of the fuel and that fuels that show poor irradiation performance in an aluminum matrix may irradiate acceptably in a nonreacting matrix. Magnesium is an excellent nonreacting matrix candidate because it has a neutron absorption coefficient similar to that of aluminum. To avoid the formation of a liquid phase, improvements were made to the roll bonding process to achieve acceptable bonding at 415C. After these methods were developed, compatibility studies with two fuels, U-2Mo and U-10Mo, and two matrices, aluminum and magnesium, were conducted to study the reaction between the fuel and a magnesium matrix. Results of the experiment have indicated that there is very little or no reaction between these fuels and the magnesium matrix. It is planned that fuel plates with a magnesium matrix will be included in the next irradiation test for the RERTR high-density fuel development program.

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Mr. Thomas Wiencek
Engineering Specialist
Energy Technology Division
Argonne National Laboratory
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Argonne, IL 60439 USA
Phone: (630) 252-5020
Fax: (630) 252-9232

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Last modified on July 29, 2008 11:33 +0200