The effect of aluminum additions on the oxidation resistance of U3Si2
Abstract
The effect of aluminum additions to U3Si2 is investigated in this paper as a means to improve the oxidation resistance of this nuclear fuel form. Four U-Si-Al compositions have been synthesized and characterized using scanning electron microscopy, energy dispersive spectroscopy, and x-ray diffraction. The onsets of breakaway oxidation are identified in air thermal ramp tests using thermogravimetric analysis. The final oxidation products following 1000° C air exposure are identified using x-ray diffraction and compared to those of UO2 and U metal oxidized in the same manner. Finally, thermogravimetric data acquired in this study indicates that increasing amounts of Al in U3Si2 further delays the onset of breakaway oxidation, providing enhanced oxidation resistance in air. Al2O3 formation on U3Al2Si3 is observed following a heat treatment performed at 500° C in air, demonstrating the potential of Al additions to improve the oxidation resistance of U3Si2.
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5); USDOE National Nuclear Security Administration (NNSA); USDOE Office of Nuclear Energy (NE)
- OSTI Identifier:
- 1412882
- Alternate Identifier(s):
- OSTI ID: 1396905
- Report Number(s):
- LA-UR-17-30757
Journal ID: ISSN 0022-3115; TRN: US1800390
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Nuclear Materials
- Additional Journal Information:
- Journal Volume: 489; Journal ID: ISSN 0022-3115
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
Citation Formats
Wood, E. Sooby, White, J. T., and Nelson, A. T. The effect of aluminum additions on the oxidation resistance of U3Si2. United States: N. p., 2017.
Web. doi:10.1016/j.jnucmat.2017.02.045.
Wood, E. Sooby, White, J. T., & Nelson, A. T. The effect of aluminum additions on the oxidation resistance of U3Si2. United States. https://doi.org/10.1016/j.jnucmat.2017.02.045
Wood, E. Sooby, White, J. T., and Nelson, A. T. Sat .
"The effect of aluminum additions on the oxidation resistance of U3Si2". United States. https://doi.org/10.1016/j.jnucmat.2017.02.045. https://www.osti.gov/servlets/purl/1412882.
@article{osti_1412882,
title = {The effect of aluminum additions on the oxidation resistance of U3Si2},
author = {Wood, E. Sooby and White, J. T. and Nelson, A. T.},
abstractNote = {The effect of aluminum additions to U3Si2 is investigated in this paper as a means to improve the oxidation resistance of this nuclear fuel form. Four U-Si-Al compositions have been synthesized and characterized using scanning electron microscopy, energy dispersive spectroscopy, and x-ray diffraction. The onsets of breakaway oxidation are identified in air thermal ramp tests using thermogravimetric analysis. The final oxidation products following 1000° C air exposure are identified using x-ray diffraction and compared to those of UO2 and U metal oxidized in the same manner. Finally, thermogravimetric data acquired in this study indicates that increasing amounts of Al in U3Si2 further delays the onset of breakaway oxidation, providing enhanced oxidation resistance in air. Al2O3 formation on U3Al2Si3 is observed following a heat treatment performed at 500° C in air, demonstrating the potential of Al additions to improve the oxidation resistance of U3Si2.},
doi = {10.1016/j.jnucmat.2017.02.045},
journal = {Journal of Nuclear Materials},
number = ,
volume = 489,
place = {United States},
year = {Sat Apr 01 00:00:00 EDT 2017},
month = {Sat Apr 01 00:00:00 EDT 2017}
}
Web of Science
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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
- Physical Chemistry Chemical Physics, Vol. 22, Issue 4