Mn-doped oxide nuclear fuel
Abstract
A nuclear fuel includes uranium(IV) oxide (UO2) and manganese (Mn) as a dopant. The Mn dopant may be present in the fuel in an amount up to the solubility limit for Mn under a given set of conditions, for example, about 0.01 wt % to about 1 wt %. The nuclear fuel is substantially free of aluminum (Al). The nuclear fuel exhibits enhanced grain size development during sintering temperatures as low at 1400 K due to an increase in uranium sub-lattice vacancies induced by dissolution of the Mn dopant at interstitial defect sites. The Mn-doped nuclear fuel exhibits improved grain sizes at lower temperatures compared to Cr-, Al-, and undoped UO2, and therefore desirably exhibits lower fission gas release and higher plasticity, reducing the chances of fuel rod failure.
- Inventors:
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1771664
- Patent Number(s):
- 10847271
- Application Number:
- 16/101,808
- Assignee:
- Triad National Security, LLC (Los Alamos, NM)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
- DOE Contract Number:
- AC52-06NA25396
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 08/13/2018
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Cooper, Michael William Donald, Andersson, Anders David Ragnar, and Stanek, Christopher Richard. Mn-doped oxide nuclear fuel. United States: N. p., 2020.
Web.
Cooper, Michael William Donald, Andersson, Anders David Ragnar, & Stanek, Christopher Richard. Mn-doped oxide nuclear fuel. United States.
Cooper, Michael William Donald, Andersson, Anders David Ragnar, and Stanek, Christopher Richard. Tue .
"Mn-doped oxide nuclear fuel". United States. https://www.osti.gov/servlets/purl/1771664.
@article{osti_1771664,
title = {Mn-doped oxide nuclear fuel},
author = {Cooper, Michael William Donald and Andersson, Anders David Ragnar and Stanek, Christopher Richard},
abstractNote = {A nuclear fuel includes uranium(IV) oxide (UO2) and manganese (Mn) as a dopant. The Mn dopant may be present in the fuel in an amount up to the solubility limit for Mn under a given set of conditions, for example, about 0.01 wt % to about 1 wt %. The nuclear fuel is substantially free of aluminum (Al). The nuclear fuel exhibits enhanced grain size development during sintering temperatures as low at 1400 K due to an increase in uranium sub-lattice vacancies induced by dissolution of the Mn dopant at interstitial defect sites. The Mn-doped nuclear fuel exhibits improved grain sizes at lower temperatures compared to Cr-, Al-, and undoped UO2, and therefore desirably exhibits lower fission gas release and higher plasticity, reducing the chances of fuel rod failure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 24 00:00:00 EST 2020},
month = {Tue Nov 24 00:00:00 EST 2020}
}
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