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Title: Diffusion behaviors between metallic fuel alloys with Pd addition and Fe

Abstract

Fission product lanthanides (Lns) in metallic fuel is the primary cause of fuel-cladding chemical interaction (FCCI). Palladium (Pd) is being explored as a potential additive to reduce or mitigate FCCI by forming stable Pd-Ln compounds. The current study is an investigation of diffusion behaviors between UZrPd, UZrPdLn, UPuZrPd, and UPuZrPdLn alloys (Ln = 53Nd-25Ce-16Pr-6La wt. %) and iron (Fe). Diffusion couple tests were performed followed by microstructural analysis using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It is found that the diffusion of Fe into the fuel is reduced by PdZr2 precipitates randomly dispersed throughout the fuel matrix. Ln-Pd compounds form in UZrPdLn alloys, and (Ln,Pu)Pd forms in the UPuZrPdLn alloy. In both diffusion couples with Ln, small amounts of Lns are diffusing into the Fe. This could be due to small amounts of dissolved Lns in the precipitates, or could be due to the Ln-Pd compounds decomposing. In either case, diffusion caused by Lns is greatly reduced.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
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  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1631334
Alternate Identifier(s):
OSTI ID: 1693655
Report Number(s):
INL/JOU-19-53555-Rev000
Journal ID: ISSN 0022-3115; TRN: US2200967
Grant/Contract Number:  
AC07-05ID14517
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 525; Journal Issue: C; Journal ID: ISSN 0022-3115
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 36 MATERIALS SCIENCE; fuel-cladding chemical interaction; fuel additive; diffusion; metallic fuel

Citation Formats

Xie, Yi, Benson, Michael T., He, Lingfeng, King, James A., and Murray, Daniel J. Diffusion behaviors between metallic fuel alloys with Pd addition and Fe. United States: N. p., 2019. Web. doi:10.1016/j.jnucmat.2019.07.028.
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Xie, Yi, Benson, Michael T., He, Lingfeng, King, James A., & Murray, Daniel J. Diffusion behaviors between metallic fuel alloys with Pd addition and Fe. United States. https://doi.org/10.1016/j.jnucmat.2019.07.028
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Xie, Yi, Benson, Michael T., He, Lingfeng, King, James A., and Murray, Daniel J. Fri . "Diffusion behaviors between metallic fuel alloys with Pd addition and Fe". United States. https://doi.org/10.1016/j.jnucmat.2019.07.028. https://www.osti.gov/servlets/purl/1631334.
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@article{osti_1631334,
title = {Diffusion behaviors between metallic fuel alloys with Pd addition and Fe},
author = {Xie, Yi and Benson, Michael T. and He, Lingfeng and King, James A. and Murray, Daniel J.},
abstractNote = {Fission product lanthanides (Lns) in metallic fuel is the primary cause of fuel-cladding chemical interaction (FCCI). Palladium (Pd) is being explored as a potential additive to reduce or mitigate FCCI by forming stable Pd-Ln compounds. The current study is an investigation of diffusion behaviors between UZrPd, UZrPdLn, UPuZrPd, and UPuZrPdLn alloys (Ln = 53Nd-25Ce-16Pr-6La wt. %) and iron (Fe). Diffusion couple tests were performed followed by microstructural analysis using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It is found that the diffusion of Fe into the fuel is reduced by PdZr2 precipitates randomly dispersed throughout the fuel matrix. Ln-Pd compounds form in UZrPdLn alloys, and (Ln,Pu)Pd forms in the UPuZrPdLn alloy. In both diffusion couples with Ln, small amounts of Lns are diffusing into the Fe. This could be due to small amounts of dissolved Lns in the precipitates, or could be due to the Ln-Pd compounds decomposing. In either case, diffusion caused by Lns is greatly reduced.},
doi = {10.1016/j.jnucmat.2019.07.028},
journal = {Journal of Nuclear Materials},
number = C,
volume = 525,
place = {United States},
year = {Fri Jul 26 00:00:00 EDT 2019},
month = {Fri Jul 26 00:00:00 EDT 2019}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1016/j.jnucmat.2019.07.028
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Cited by: 9 works
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Figures / Tables:

Table 1 Table 1: Alloy compositions.
All figures and tables (26 total)
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Works referenced in this record:

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    Works referencing / citing this record:

    Experimental Investigation of FCCI Using Diffusion Couple Test Between UZr Fuel with Sb Additive and Cladding
    journal, February 2020

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      Figures / Tables found in this record:

      Table 1 (p. 4)table
      Figure 1 (p. 8)figure
      Table 2 (p. 8)table
      Figure 2 (p. 9)figure
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      Table 3 (p. 9)table
      Figure 4 (p. 11)figure
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      Figure 6 (p. 12)figure
      Table 4 (p. 12)table
      Figure 7 (p. 13)figure
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      Table 5 (p. 13)table
      Figure 10 (p. 15)figure
      Figure 9 (p. 15)figure
      Table 6 (p. 15)table
      Figure 11 (p. 16)figure
      Figure 12 (p. 18)figure
      Table 7 (p. 18)table
      Figure 13 (p. 19)figure
      Figure 14 (p. 19)figure
      Table 8 (p. 20)table
      Figure 15 (p. 22)figure
      Figure 16 (p. 23)figure
      Figure 17 (p. 23)figure
      Table 9 (p. 23)table
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