The control of the interaction between the U(Mo) fuel phase and the Al matrix is one of the challenges of dispersion fuel plate development for research reactors. Given the specific properties of this interaction layer, larger amounts of it in the meat could lead to a reduction of the plate mechanical integrity and thermal conductivity, eventually leading to pillowing. The SELENIUM project showed that by depositing a ZrN coating on the surface of the U(Mo) fuel particles, the amount of formed U(Mo)-Al interaction layer is limited but still present. Microstructural analysis performed on the as fabricated coating and fresh fuel plates containing ZrN coated U(Mo) dispersed in an Al matrix, revealed that the coating gets damaged during plate production. The post irradiation examinations (PIE) of the ZrN coated U(Mo) fuel plates, from the SELENIUM and SEMPER FIDELIS experiments, show how the U(Mo)-Al interaction layer is formed -only at those locations where the coating is missing or damaged -and the evolution of coating microstructure during irradiation. As a remedy, to further reduce the amount of interaction layer formed, the use of an Al-Si matrix was proposed based on the higher affinity of Si for U compared to the affinity of Al for U. PIE of a fuel plate consisting of ZrN coated U(Mo) dispersed in an Al-Si matrix irradiated in the SEMPER FIDELIS experiment, clearly demonstrates the benefit of adding Si to the matrix. (c) 2021 Elsevier B.V. All rights reserved.
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Korea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South KoreaKorea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South Korea
Kim, Sunghwan
Kim, Yeon Soo
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Argonne Natl Lab, 9700 S Cass Ave, Lemont, IL 60439 USAKorea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South Korea
Kim, Yeon Soo
Jeong, Y. J.
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Korea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South KoreaKorea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South Korea
Jeong, Y. J.
Mo, K.
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Argonne Natl Lab, 9700 S Cass Ave, Lemont, IL 60439 USAKorea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South Korea
Mo, K.
Miao, Y.
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Argonne Natl Lab, 9700 S Cass Ave, Lemont, IL 60439 USAKorea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South Korea
Miao, Y.
Ye, B.
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Argonne Natl Lab, 9700 S Cass Ave, Lemont, IL 60439 USAKorea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South Korea
Ye, B.
Oaks, A.
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Argonne Natl Lab, 9700 S Cass Ave, Lemont, IL 60439 USAKorea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South Korea
Oaks, A.
Bhattacharya, S.
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Argonne Natl Lab, 9700 S Cass Ave, Lemont, IL 60439 USAKorea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South Korea
Bhattacharya, S.
Lee, K. H.
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Korea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South KoreaKorea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South Korea
Lee, K. H.
Kim, K. N.
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Korea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South KoreaKorea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South Korea
Kim, K. N.
Park, J. M.
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Korea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South KoreaKorea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South Korea
Park, J. M.
Yacout, A. M.
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Argonne Natl Lab, 9700 S Cass Ave, Lemont, IL 60439 USAKorea Atom Energy Res Inst, Daedeok Daero 989beon Gil 111, Daejeon 305353, South Korea
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Idaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USAIdaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USA
Miller, B. D.
Keiser, D. D., Jr.
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Idaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USAIdaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USA
Keiser, D. D., Jr.
Abir, M.
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Idaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USA
MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USAIdaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USA
Abir, M.
Aitkaliyeva, A.
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Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USAIdaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USA
Aitkaliyeva, A.
Leenaers, A.
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SCK CEN, Boeretang 200, B-2400 Mol, BelgiumIdaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USA
Leenaers, A.
Hernandez, B. J.
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Idaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USAIdaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USA
Hernandez, B. J.
Van Renterghem, W.
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SCK CEN, Boeretang 200, B-2400 Mol, BelgiumIdaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USA
Van Renterghem, W.
Winston, A.
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Idaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USAIdaho Natl Lab, Nucl Fuels & Mat Div, POB 1625, Idaho Falls, ID 83415 USA