Effect of High Si Content on U3Si2 Fuel Microstructure
Abstract
The development of U3Si2 as an accident tolerant nuclear fuel has gained research interest due to its promising high uranium density and improved thermal properties. In the present study, three samples of U3Si2 fuel with varying silicon content have been fabricated by a conventional powder metallurgical route. Microstructural characterization via scanning and transmission electron microscopy reveals the presence of other stoichiometry of uranium silicide such as USi and UO2 in both samples. The detailed phase analysis by x-ray diffraction shows the presence of secondary phases, such as USi, U3Si, and UO2. The samples with higher concentrations of silicon content of 7.5 wt.% displays additional elemental Si. Furthermore, these samples also possess an increased amount of the USi phase as compared to that in the conventional sample with 7.3 wt.% silicon. The optimization of U3Si2 fuel performance through the understanding of the role of Si content on its microstructure has been discussed.
- Authors:
-
- 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:
- 1562900
- Report Number(s):
- INL/JOU-17-43263-Rev000
Journal ID: ISSN 1047-4838; TRN: US2000774
- Grant/Contract Number:
- AC07-05ID14517
- Resource Type:
- Accepted Manuscript
- Journal Name:
- JOM. Journal of the Minerals, Metals & Materials Society
- Additional Journal Information:
- Journal Volume: 70; Journal Issue: 2; Journal ID: ISSN 1047-4838
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; e fuel cycle & development program; Scanning transmission electron microscopy; X-ray diffraction spectroscopy; x-ray spectroscopy; energy dispersive spectroscopy
Citation Formats
Rosales, Jhonathan, van Rooyen, Isabella J., Meher, Subhashish, Hoggan, Rita, Parga, Clemente, and Harp, Jason. Effect of High Si Content on U3Si2 Fuel Microstructure. United States: N. p., 2017.
Web. doi:10.1007/s11837-017-2654-6.
Rosales, Jhonathan, van Rooyen, Isabella J., Meher, Subhashish, Hoggan, Rita, Parga, Clemente, & Harp, Jason. Effect of High Si Content on U3Si2 Fuel Microstructure. United States. https://doi.org/10.1007/s11837-017-2654-6
Rosales, Jhonathan, van Rooyen, Isabella J., Meher, Subhashish, Hoggan, Rita, Parga, Clemente, and Harp, Jason. Thu .
"Effect of High Si Content on U3Si2 Fuel Microstructure". United States. https://doi.org/10.1007/s11837-017-2654-6. https://www.osti.gov/servlets/purl/1562900.
@article{osti_1562900,
title = {Effect of High Si Content on U3Si2 Fuel Microstructure},
author = {Rosales, Jhonathan and van Rooyen, Isabella J. and Meher, Subhashish and Hoggan, Rita and Parga, Clemente and Harp, Jason},
abstractNote = {The development of U3Si2 as an accident tolerant nuclear fuel has gained research interest due to its promising high uranium density and improved thermal properties. In the present study, three samples of U3Si2 fuel with varying silicon content have been fabricated by a conventional powder metallurgical route. Microstructural characterization via scanning and transmission electron microscopy reveals the presence of other stoichiometry of uranium silicide such as USi and UO2 in both samples. The detailed phase analysis by x-ray diffraction shows the presence of secondary phases, such as USi, U3Si, and UO2. The samples with higher concentrations of silicon content of 7.5 wt.% displays additional elemental Si. Furthermore, these samples also possess an increased amount of the USi phase as compared to that in the conventional sample with 7.3 wt.% silicon. The optimization of U3Si2 fuel performance through the understanding of the role of Si content on its microstructure has been discussed.},
doi = {10.1007/s11837-017-2654-6},
journal = {JOM. Journal of the Minerals, Metals & Materials Society},
number = 2,
volume = 70,
place = {United States},
year = {Thu Nov 16 00:00:00 EST 2017},
month = {Thu Nov 16 00:00:00 EST 2017}
}
Web of Science
Figures / Tables:
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Works referencing / citing this record:
A first-principles study on the influences of metal species Al, Zr, Mo and Tc on the mechanical properties of U 3 Si 2
journal, January 2020
- Gao, Haigen; Liu, Yande; Hu, Jun
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Figures / Tables found in this record: