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Title: Characterization of U-Zr fuel with alloying additive Sb for immobilizing fission product lanthanides

Fission product lanthanides can migrate to the fuel periphery and enhance fuel-cladding chemical interaction (FCCI). Adding Sb into the fuel alloy to bind lanthanides and thus to prevent lanthanides from migration has been proposed. The U-Zr fuel alloys were fabricated with compositions of U-10Zr-4.1Sb, U-10Zr-4.1Sb-4Ce, U-10Zr-2.07Sb, and U-10Zr-2.07Sb-2Ce wt.% by arc melting, and analyzed under scanning electron microscope (SEM) for the microstructure and elemental compositions. In the Ce-free alloy, Sb was found in Sb-Zr precipitates; while in the Ce-contained alloy, Sb was found in the form of intermetallic compounds Ce 4Sb 3 and Ce 2Sb without any Sb-Zr precipitates. In conclusion, antimony has the preference to bind Ce over Zr, indicating Sb can effectively prevent Ce interaction with Fe to the extent. Cerium is bound to Sb and no ternary intermetallic Ce-Sb-Zr compound was found.
Authors:
ORCiD logo [1] ; ORCiD logo [2] ; ORCiD logo [2] ;  [2] ;  [1]
  1. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
  2. Idaho National Lab. (INL), Idaho Falls, ID (United States)
Publication Date:
Report Number(s):
INL-JOU-18-50160-Rev000
Journal ID: ISSN 0022-3115
Grant/Contract Number:
AC07-05ID14517
Type:
Accepted Manuscript
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 498; Journal Issue: C; Journal ID: ISSN 0022-3115
Publisher:
Elsevier
Research Org:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org:
USDOE Office of Nuclear Energy (NE)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; metallic fuel; FCCI; fuel additive
OSTI Identifier:
1461091

Xie, Yi, Benson, Michael T., King, James A., Mariani, Robert D., and Zhang, Jinsuo. Characterization of U-Zr fuel with alloying additive Sb for immobilizing fission product lanthanides. United States: N. p., Web. doi:10.1016/j.jnucmat.2017.10.039.
Xie, Yi, Benson, Michael T., King, James A., Mariani, Robert D., & Zhang, Jinsuo. Characterization of U-Zr fuel with alloying additive Sb for immobilizing fission product lanthanides. United States. doi:10.1016/j.jnucmat.2017.10.039.
Xie, Yi, Benson, Michael T., King, James A., Mariani, Robert D., and Zhang, Jinsuo. 2017. "Characterization of U-Zr fuel with alloying additive Sb for immobilizing fission product lanthanides". United States. doi:10.1016/j.jnucmat.2017.10.039. https://www.osti.gov/servlets/purl/1461091.
@article{osti_1461091,
title = {Characterization of U-Zr fuel with alloying additive Sb for immobilizing fission product lanthanides},
author = {Xie, Yi and Benson, Michael T. and King, James A. and Mariani, Robert D. and Zhang, Jinsuo},
abstractNote = {Fission product lanthanides can migrate to the fuel periphery and enhance fuel-cladding chemical interaction (FCCI). Adding Sb into the fuel alloy to bind lanthanides and thus to prevent lanthanides from migration has been proposed. The U-Zr fuel alloys were fabricated with compositions of U-10Zr-4.1Sb, U-10Zr-4.1Sb-4Ce, U-10Zr-2.07Sb, and U-10Zr-2.07Sb-2Ce wt.% by arc melting, and analyzed under scanning electron microscope (SEM) for the microstructure and elemental compositions. In the Ce-free alloy, Sb was found in Sb-Zr precipitates; while in the Ce-contained alloy, Sb was found in the form of intermetallic compounds Ce4Sb3 and Ce2Sb without any Sb-Zr precipitates. In conclusion, antimony has the preference to bind Ce over Zr, indicating Sb can effectively prevent Ce interaction with Fe to the extent. Cerium is bound to Sb and no ternary intermetallic Ce-Sb-Zr compound was found.},
doi = {10.1016/j.jnucmat.2017.10.039},
journal = {Journal of Nuclear Materials},
number = C,
volume = 498,
place = {United States},
year = {2017},
month = {10}
}