Determination of elastic properties of polycrystalline U3Si2 using resonant ultrasound spectroscopy

U. Carvajal-Nunez; T. A. Saleh; J. T. White; B. A. Maiorov; A. T. Nelson

doi:10.1016/j.jnucmat.2017.11.008

Determination of elastic properties of polycrystalline U₃Si₂ using resonant ultrasound spectroscopy

U. Carvajal-Nunez, T. A. Saleh, J. T. White, B. A. Maiorov, A. T. Nelson

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

The elastic properties of U₃Si₂ at room temperature have been measured via resonant ultrasound spectroscopy. Results show that the average value of Young's and the bulk modulus for U₃Si₂ are 130.4±0.5 and 68.3±0.5 GPa, respectively. Further, a numerical model to assess thermal stress in an operating fuel is evaluated. The thermal stress evolved in U₃Si₂ is compared to UO₂ to facilitate an estimation of the probability of crack formation in U₃Si₂ under representative light water reactor operating conditions.

Original language	English
Pages (from-to)	438-444
Number of pages	7
Journal	Journal of Nuclear Materials
Volume	498
DOIs	https://doi.org/10.1016/j.jnucmat.2017.11.008
State	Published - Jan 2018
Externally published	Yes

Funding

The support of the U.S. Department of Energy, Office of Nuclear Energy's Advanced Fuels Technologies program is gratefully acknowledged. This work was supported as part of the Materials Science of Actinides, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences under Award, DE-SC0001089 . This work was performed at Los Alamos National Laboratory which is managed by Los Alamos National Security under contract DE-AC52-06NA25396 under the auspices of the U.S. Department of Energy.

Funders	Funder number
U.S. Department of Energy
Office of Science
Office of Nuclear Energy
Basic Energy Sciences	DE-SC0001089
Los Alamos National Laboratory	DE-AC52-06NA25396

Keywords

Mechanical properties
Nuclear fuels
Resonant ultrasound spectroscopy
Thermal stress
Uranium-silicides

Access to Document

10.1016/j.jnucmat.2017.11.008

Cite this

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title = "Determination of elastic properties of polycrystalline U3Si2 using resonant ultrasound spectroscopy",

abstract = "The elastic properties of U3Si2 at room temperature have been measured via resonant ultrasound spectroscopy. Results show that the average value of Young's and the bulk modulus for U3Si2 are 130.4±0.5 and 68.3±0.5 GPa, respectively. Further, a numerical model to assess thermal stress in an operating fuel is evaluated. The thermal stress evolved in U3Si2 is compared to UO2 to facilitate an estimation of the probability of crack formation in U3Si2 under representative light water reactor operating conditions.",

keywords = "Mechanical properties, Nuclear fuels, Resonant ultrasound spectroscopy, Thermal stress, Uranium-silicides",

author = "U. Carvajal-Nunez and Saleh, {T. A.} and White, {J. T.} and Maiorov, {B. A.} and Nelson, {A. T.}",

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AU - Saleh, T. A.

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AU - Maiorov, B. A.

AU - Nelson, A. T.

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AB - The elastic properties of U3Si2 at room temperature have been measured via resonant ultrasound spectroscopy. Results show that the average value of Young's and the bulk modulus for U3Si2 are 130.4±0.5 and 68.3±0.5 GPa, respectively. Further, a numerical model to assess thermal stress in an operating fuel is evaluated. The thermal stress evolved in U3Si2 is compared to UO2 to facilitate an estimation of the probability of crack formation in U3Si2 under representative light water reactor operating conditions.

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KW - Nuclear fuels

KW - Resonant ultrasound spectroscopy

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