Effectiveness of a dopant in U-ZR metallic fuel to prevent lanthanide migration

Yeon Soo Kim; T. Wiencek; E. O'Hare; J. Fortner

Effectiveness of a dopant in U-ZR metallic fuel to prevent lanthanide migration

Yeon Soo Kim, T. Wiencek, E. O'Hare, J. Fortner

Research output: Contribution to conference › Paper › peer-review

3 Scopus citations

Abstract

Advanced fast reactor concepts to achieve ultra-high burnup (∼50%) without requiring refueling by way of using metallic alloy fuel have gained interest. Fission product lanthanide accumulation at high burnup is substantial and its migration to cladding and reaction with cladding is a potential life-limiting phenomenon. As a means to solve this problem, adding an element that forms stable compounds with lanthanides to immobilize them has been proposed. The theoretical assessment shows that indium, thallium, gallium, and antimony are good candidates. Except for Sb, because these elements are low-melting elements, liquid metal embrittlement of cladding is a concern if large sized agglomerates exist contacting the cladding. Alloy characterization of as-fabricated samples was performed to examine the effectiveness of the dopant addition method using optical microscopy and scanning electron microscophy.

Original language	English
Pages	1118-1125
Number of pages	8
State	Published - 2013
Externally published	Yes
Event	International Nuclear Fuel Cycle Conference: Nuclear Energy at a Crossroads, GLOBAL 2013 - Salt Lake City, UT, United States Duration: Sep 29 2013 → Oct 3 2013

Conference

Conference	International Nuclear Fuel Cycle Conference: Nuclear Energy at a Crossroads, GLOBAL 2013
Country/Territory	United States
City	Salt Lake City, UT
Period	09/29/13 → 10/3/13

Cite this

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abstract = "Advanced fast reactor concepts to achieve ultra-high burnup (∼50%) without requiring refueling by way of using metallic alloy fuel have gained interest. Fission product lanthanide accumulation at high burnup is substantial and its migration to cladding and reaction with cladding is a potential life-limiting phenomenon. As a means to solve this problem, adding an element that forms stable compounds with lanthanides to immobilize them has been proposed. The theoretical assessment shows that indium, thallium, gallium, and antimony are good candidates. Except for Sb, because these elements are low-melting elements, liquid metal embrittlement of cladding is a concern if large sized agglomerates exist contacting the cladding. Alloy characterization of as-fabricated samples was performed to examine the effectiveness of the dopant addition method using optical microscopy and scanning electron microscophy.",

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T1 - Effectiveness of a dopant in U-ZR metallic fuel to prevent lanthanide migration

AU - Kim, Yeon Soo

AU - Wiencek, T.

AU - O'Hare, E.

AU - Fortner, J.

PY - 2013

Y1 - 2013

N2 - Advanced fast reactor concepts to achieve ultra-high burnup (∼50%) without requiring refueling by way of using metallic alloy fuel have gained interest. Fission product lanthanide accumulation at high burnup is substantial and its migration to cladding and reaction with cladding is a potential life-limiting phenomenon. As a means to solve this problem, adding an element that forms stable compounds with lanthanides to immobilize them has been proposed. The theoretical assessment shows that indium, thallium, gallium, and antimony are good candidates. Except for Sb, because these elements are low-melting elements, liquid metal embrittlement of cladding is a concern if large sized agglomerates exist contacting the cladding. Alloy characterization of as-fabricated samples was performed to examine the effectiveness of the dopant addition method using optical microscopy and scanning electron microscophy.

AB - Advanced fast reactor concepts to achieve ultra-high burnup (∼50%) without requiring refueling by way of using metallic alloy fuel have gained interest. Fission product lanthanide accumulation at high burnup is substantial and its migration to cladding and reaction with cladding is a potential life-limiting phenomenon. As a means to solve this problem, adding an element that forms stable compounds with lanthanides to immobilize them has been proposed. The theoretical assessment shows that indium, thallium, gallium, and antimony are good candidates. Except for Sb, because these elements are low-melting elements, liquid metal embrittlement of cladding is a concern if large sized agglomerates exist contacting the cladding. Alloy characterization of as-fabricated samples was performed to examine the effectiveness of the dopant addition method using optical microscopy and scanning electron microscophy.

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M3 - Paper

AN - SCOPUS:84903135017

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T2 - International Nuclear Fuel Cycle Conference: Nuclear Energy at a Crossroads, GLOBAL 2013

Y2 - 29 September 2013 through 3 October 2013

ER -

Effectiveness of a dopant in U-ZR metallic fuel to prevent lanthanide migration

Abstract

Conference

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