Thermal and transport properties of U3Si2

Antonio, Daniel J.; Shrestha, Keshav; Harp, Jason M.; Adkins, Cynthia A.; Zhang, Yongfeng; Carmack, Jon; Gofryk, Krzysztof

doi:10.1016/j.jnucmat.2018.05.036

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 (γ_el ~ 150 mJ/mol-K²) and shows an upturn in C_p/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:

Antonio, Daniel J. ^[1]; Shrestha, Keshav ^[1];

^[1];

^[1]

Idaho National Lab. (INL), Idaho Falls, ID (United States)

Publication Date:: 2018-05-14

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:: 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.

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                    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

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                    Antonio, Daniel J., Shrestha, Keshav, Harp, Jason M., Adkins, Cynthia A., Zhang, Yongfeng, Carmack, Jon, and Gofryk, Krzysztof. Mon .  
"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.

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@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},

  journal      = {Journal of Nuclear Materials},

  number       = C,

  volume       = 508,

  place        = {United States},

  year         = {2018},

  month        = {5}

}

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https://doi.org/10.1016/j.jnucmat.2018.05.036

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Cited by: 4 works

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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 »

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Title: Thermal and transport properties of U3Si2

Abstract

Citation Formats

Figures / Tables:

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

Title: Thermal and transport properties of U₃Si₂

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