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Title: Microstructural characterization of annealed U-12Zr-4Pd and U-12Zr-4Pd-5Ln: Investigating Pd as a metallic fuel additive

Abstract

Here, palladium is being investigated as a potential additive to metallic fuel to control fuel-cladding chemical interaction (FCCI). A primary cause of FCCI is the lanthanide fission products moving to the fuel periphery and interacting with the cladding. This interaction will lead to wastage of the cladding and eventually to a cladding breach. The current study is a scanning electron microscopy (SEM) and transmission electron microscopy (TEM) characterization of annealed U-12Zr-4Pd and U-12Zr-4Pd-5Ln, where Ln=53Nd-25Ce-16Pr-6La. The present study shows that Pd preferentially binds the lanthanides, which will prevent lanthanide migration and interaction with the cladding. The SEM analysis indicates the 1:1 Pd-Ln compound is being formed, while the TEM analysis, due to higher resolution, found the 1:1 compound, as well as Pd-rich compounds Pd 2Ln and Pd 3Ln 2.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1]
  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:
1477493
Report Number(s):
INL/JOU-17-43587-Rev000
Journal ID: ISSN 0022-3115
Grant/Contract Number:  
AC07-05ID14517
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 502; Journal Issue: C; Journal ID: ISSN 0022-3115
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 36 MATERIALS SCIENCE; FCCI; metallic fuel; fuel additive

Citation Formats

Benson, Michael T., He, Lingfeng, King, James A., and Mariani, Robert D. Microstructural characterization of annealed U-12Zr-4Pd and U-12Zr-4Pd-5Ln: Investigating Pd as a metallic fuel additive. United States: N. p., 2018. Web. doi:10.1016/j.jnucmat.2018.02.012.
Benson, Michael T., He, Lingfeng, King, James A., & Mariani, Robert D. Microstructural characterization of annealed U-12Zr-4Pd and U-12Zr-4Pd-5Ln: Investigating Pd as a metallic fuel additive. United States. doi:10.1016/j.jnucmat.2018.02.012.
Benson, Michael T., He, Lingfeng, King, James A., and Mariani, Robert D. Wed . "Microstructural characterization of annealed U-12Zr-4Pd and U-12Zr-4Pd-5Ln: Investigating Pd as a metallic fuel additive". United States. doi:10.1016/j.jnucmat.2018.02.012. https://www.osti.gov/servlets/purl/1477493.
@article{osti_1477493,
title = {Microstructural characterization of annealed U-12Zr-4Pd and U-12Zr-4Pd-5Ln: Investigating Pd as a metallic fuel additive},
author = {Benson, Michael T. and He, Lingfeng and King, James A. and Mariani, Robert D.},
abstractNote = {Here, palladium is being investigated as a potential additive to metallic fuel to control fuel-cladding chemical interaction (FCCI). A primary cause of FCCI is the lanthanide fission products moving to the fuel periphery and interacting with the cladding. This interaction will lead to wastage of the cladding and eventually to a cladding breach. The current study is a scanning electron microscopy (SEM) and transmission electron microscopy (TEM) characterization of annealed U-12Zr-4Pd and U-12Zr-4Pd-5Ln, where Ln=53Nd-25Ce-16Pr-6La. The present study shows that Pd preferentially binds the lanthanides, which will prevent lanthanide migration and interaction with the cladding. The SEM analysis indicates the 1:1 Pd-Ln compound is being formed, while the TEM analysis, due to higher resolution, found the 1:1 compound, as well as Pd-rich compounds Pd2Ln and Pd3Ln2.},
doi = {10.1016/j.jnucmat.2018.02.012},
journal = {Journal of Nuclear Materials},
issn = {0022-3115},
number = C,
volume = 502,
place = {United States},
year = {2018},
month = {2}
}

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