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Title: Thermal and transport properties of U3Si2

Abstract

Here, we have studied U3Si2 by means of the heat capacity, electrical resistivity, Seebeck and Hall effects, and thermal conductivity in the temperature range 2-300 K and in magnetic fields up to 9 T. All the results obtained point to delocalized nature of 5f-electrons in this material. The low temperature heat capacity is enhanced (γel ~ 150 mJ/mol-K2) and shows an upturn in Cp/T (T), characteristic of spin fluctuations. The thermal conductivity of U3Si2 is ~8.5 W/m-K at room temperature and we show that the lattice part of the total thermal conductivity is small, with electrons dominating heat transport above 300 K.

Authors:
 [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [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 Science (SC)
OSTI Identifier:
1478507
Report Number(s):
INL/JOU-17-42333-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: 508; Journal Issue: C; Journal ID: ISSN 0022-3115
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 36 MATERIALS SCIENCE; U3Si2; nuclear fuel; uranium sequisilicide; thermal conductivity; Electrical transport

Citation Formats

Antonio, Daniel J., Shrestha, Keshav, Harp, Jason M., Adkins, Cynthia A., Zhang, Yongfeng, Carmack, Jon, and Gofryk, Krzysztof. Thermal and transport properties of U3Si2. United States: N. p., 2018. Web. doi:10.1016/j.jnucmat.2018.05.036.
Antonio, Daniel J., Shrestha, Keshav, Harp, Jason M., Adkins, Cynthia A., Zhang, Yongfeng, Carmack, Jon, & Gofryk, Krzysztof. Thermal and transport properties of U3Si2. United States. https://doi.org/10.1016/j.jnucmat.2018.05.036
Antonio, Daniel J., Shrestha, Keshav, Harp, Jason M., Adkins, Cynthia A., Zhang, Yongfeng, Carmack, Jon, and Gofryk, Krzysztof. 2018. "Thermal and transport properties of U3Si2". United States. https://doi.org/10.1016/j.jnucmat.2018.05.036. https://www.osti.gov/servlets/purl/1478507.
@article{osti_1478507,
title = {Thermal and transport properties of U3Si2},
author = {Antonio, Daniel J. and Shrestha, Keshav and Harp, Jason M. and Adkins, Cynthia A. and Zhang, Yongfeng and Carmack, Jon and Gofryk, Krzysztof},
abstractNote = {Here, we have studied U3Si2 by means of the heat capacity, electrical resistivity, Seebeck and Hall effects, and thermal conductivity in the temperature range 2-300 K and in magnetic fields up to 9 T. All the results obtained point to delocalized nature of 5f-electrons in this material. The low temperature heat capacity is enhanced (γel ~ 150 mJ/mol-K2) and shows an upturn in Cp/T (T), characteristic of spin fluctuations. The thermal conductivity of U3Si2 is ~8.5 W/m-K at room temperature and we show that the lattice part of the total thermal conductivity is small, with electrons dominating heat transport above 300 K.},
doi = {10.1016/j.jnucmat.2018.05.036},
url = {https://www.osti.gov/biblio/1478507}, journal = {Journal of Nuclear Materials},
issn = {0022-3115},
number = C,
volume = 508,
place = {United States},
year = {Mon May 14 00:00:00 EDT 2018},
month = {Mon May 14 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
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Citation Metrics:
Cited by: 21 works
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Figures / Tables:

Figure 1 Figure 1: The temperature dependence of the electrical resistivity of U3Si2. Left inset: the tetragonal unit cell of U3Si2, showing the 2 unique uranium sites. Right inset: electrical resistivity of U3Si2 from this work (solid cyan line) compared to that from ref. [6] (dotted black), ref. [8] (dashed red) andmore » the single room temperature value from ref. [14] (blue star).« less

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Works referenced in this record:

Accident tolerant fuels for LWRs: A perspective
journal, May 2014


Amorphization of U3Si2 by ion or neutron irradiation
journal, June 1996


Structural chemistry and magnetic behavior of binary uranium silicides
journal, April 1992


Magnetic and electrical properties of the U-Si system (part II)
journal, February 1992


Hydrogen absorption in U 3 Si 2 and its impact on electronic properties
journal, April 2017


Magnetic and electrical properties of the U—Si system
journal, December 1990


29Si NMR and magnetic susceptibility of U3Si2
journal, November 1993


Uranium silicide pellet fabrication by powder metallurgy for accident tolerant fuel evaluation and irradiation
journal, November 2015


Specific heat of uranium dioxide (UO2) between 0.3 and 50 K
journal, January 1983


Kondo effect in some intermetallic compounds of Ce
journal, December 1970


Valence fluctuation phenomena
journal, January 1981


Magnetoresistivity of the spin-fluctuation materials TiBe 2 and UAl 2
journal, December 1986


The Absolute Scale of Thermoelectric Power at High Temperature
journal, November 1958


Transport coefficients of intermediate valent CeNix intermetallic compounds
journal, February 1985


Magnetic and transport properties of UPd2Sb
journal, March 2005


Antiferromagnetic Kondo lattice NpNi 2 Sn
journal, April 2012


Thermoelectric power as a probe of density of states in correlated actinide materials: The case of PuCoGa 5 superconductor
journal, November 2016


Kondo behavior in antiferromagnetic CeNiGe 3
journal, June 2003


Hall effect in the ferromagnet UGe 2
journal, May 2004


Magnetotransport in the heavy-fermion compound U 2 Zn 17
journal, March 1986


First-principles investigations on the electronic structures of U3Si2
journal, February 2016


Phase equilibria in the U-Si system from first-principles calculations
journal, October 2016


Thermophysical properties of U 3 Si 2 to 1773 K
journal, September 2015


Spin fluctuations and superconductivity in UPt 3
journal, September 1984


Heavy-fermion systems
journal, October 1984


Specific Heat of the Spin-Fluctuation System U Al 2
journal, April 1975


High-field specific heat of the spin-fluctuation system UA l 2
journal, August 1983


Thermophysical properties of U3Si5 to 1773 K
journal, January 2015


Transformation twins and the elastic properties of U 3 Si at low temperatures
journal, November 1973


Corrigendum to “Thermophysical properties of U3Si2 to 1773 K” [J. Nucl. Mater. 464 (2015) 275–280]
journal, February 2017


Heat flow and lattice vibrations in glasses
journal, June 1989


Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.