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Title: Mechanical Properties of Uranium Silicides by Nanoindentation and Finite Elements Modeling

Three methods were used to measure the mechanical properties of U 3Si, U 3Si 2, and USi. Quasi-static and continuous stiffness measurement nanoindentation were used to determine hardness and Young’s modulus, and microindentation was used to evaluate the bulk hardness. Hardness and Young’s modulus of the three U-Si compounds were both observed to increase with Si content. In conclusion, finite elements modelling was used to validate the nanoindentation data calculated for U 3Si 2 and estimate its yield strength.
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-114812-2017-JA; LA-UR-17-28196
Journal ID: ISSN 1047-4838; R&D Project: 21680; TRN: US1800367
Grant/Contract Number:
SC0012704; AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
JOM. Journal of the Minerals, Metals & Materials Society
Additional Journal Information:
Journal Volume: 70; Journal Issue: 2; Journal ID: ISSN 1047-4838
Publisher:
Springer
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Nuclear Fuels; Nanoindentation; Microindentation; Mechanical properties; Uranium-silicides; 36 MATERIALS SCIENCE; Material Science; Nuclear Fuels, Nanoindentation, Microindentation, Mechanical properties, Uranium Silicides
OSTI Identifier:
1430006
Alternate Identifier(s):
OSTI ID: 1412788

Carvajal-Nunez, U., Elbakhshwan, M. S., Mara, N. A., White, J. T., and Nelson, A. T.. Mechanical Properties of Uranium Silicides by Nanoindentation and Finite Elements Modeling. United States: N. p., Web. doi:10.1007/s11837-017-2667-1.
Carvajal-Nunez, U., Elbakhshwan, M. S., Mara, N. A., White, J. T., & Nelson, A. T.. Mechanical Properties of Uranium Silicides by Nanoindentation and Finite Elements Modeling. United States. doi:10.1007/s11837-017-2667-1.
Carvajal-Nunez, U., Elbakhshwan, M. S., Mara, N. A., White, J. T., and Nelson, A. T.. 2017. "Mechanical Properties of Uranium Silicides by Nanoindentation and Finite Elements Modeling". United States. doi:10.1007/s11837-017-2667-1. https://www.osti.gov/servlets/purl/1430006.
@article{osti_1430006,
title = {Mechanical Properties of Uranium Silicides by Nanoindentation and Finite Elements Modeling},
author = {Carvajal-Nunez, U. and Elbakhshwan, M. S. and Mara, N. A. and White, J. T. and Nelson, A. T.},
abstractNote = {Three methods were used to measure the mechanical properties of U3Si, U3Si2, and USi. Quasi-static and continuous stiffness measurement nanoindentation were used to determine hardness and Young’s modulus, and microindentation was used to evaluate the bulk hardness. Hardness and Young’s modulus of the three U-Si compounds were both observed to increase with Si content. In conclusion, finite elements modelling was used to validate the nanoindentation data calculated for U3Si2 and estimate its yield strength.},
doi = {10.1007/s11837-017-2667-1},
journal = {JOM. Journal of the Minerals, Metals & Materials Society},
number = 2,
volume = 70,
place = {United States},
year = {2017},
month = {12}
}

Works referenced in this record:

An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments
journal, June 1992
  • Oliver, W. C.; Pharr, G. M.
  • Journal of Materials Research, Vol. 7, Issue 06, p. 1564-1583
  • DOI: 10.1557/JMR.1992.1564