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Title: Experimental oxygen potentials of U1-yPryO2± x and thermodynamic assessment of the U-Pr-O system

Abstract

Thermogravimetric analysis (TGA) was used to determine the oxygen potentials of fluorite urania-praseodymia (U1-yPryO2± x) solid solutions for y = 0.10 and 0.20 between 1000 and 1500 °C. A thermodynamic assessment of U-Pr-O system was performed using the CALPHAD (CALculation of PHAse Diagrams) method. Furthermore, the models well reproduce the TGA measurements and the computed phase relations are in good agreement with those proposed from an X-ray diffraction investigation.

Authors:
 [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1237148
Alternate Identifier(s):
OSTI ID: 1396641
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 470; Journal ID: ISSN 0022-3115
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; UO2± x; uranium; praseodymium; oxygen; compound energy formalism; CALPHAD; oxygen potential; phase equilibria

Citation Formats

McMurray, Jake W., and Silva, Chinthaka M.. Experimental oxygen potentials of U1-yPryO2± x and thermodynamic assessment of the U-Pr-O system. United States: N. p., 2015. Web. https://doi.org/10.1016/j.jnucmat.2015.11.059.
McMurray, Jake W., & Silva, Chinthaka M.. Experimental oxygen potentials of U1-yPryO2± x and thermodynamic assessment of the U-Pr-O system. United States. https://doi.org/10.1016/j.jnucmat.2015.11.059
McMurray, Jake W., and Silva, Chinthaka M.. Wed . "Experimental oxygen potentials of U1-yPryO2± x and thermodynamic assessment of the U-Pr-O system". United States. https://doi.org/10.1016/j.jnucmat.2015.11.059. https://www.osti.gov/servlets/purl/1237148.
@article{osti_1237148,
title = {Experimental oxygen potentials of U1-yPryO2± x and thermodynamic assessment of the U-Pr-O system},
author = {McMurray, Jake W. and Silva, Chinthaka M.},
abstractNote = {Thermogravimetric analysis (TGA) was used to determine the oxygen potentials of fluorite urania-praseodymia (U1-yPryO2± x) solid solutions for y = 0.10 and 0.20 between 1000 and 1500 °C. A thermodynamic assessment of U-Pr-O system was performed using the CALPHAD (CALculation of PHAse Diagrams) method. Furthermore, the models well reproduce the TGA measurements and the computed phase relations are in good agreement with those proposed from an X-ray diffraction investigation.},
doi = {10.1016/j.jnucmat.2015.11.059},
journal = {Journal of Nuclear Materials},
number = ,
volume = 470,
place = {United States},
year = {2015},
month = {12}
}

Journal Article:

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Cited by: 1 work
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