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Title: Thermodynamic assessment of the Pr-O system

We found that the Calphad method was used to perform a thermodynamic assessment of the Pr–O system. Compound energy formalism representations were developed for the fluorite α-PrO 2–x and bixbyite σ-Pr 3 O 5 ± x solid solutions while the two-sublattice liquid model was used to describe the binary melt. The series of phases between Pr 2 O 3 and PrO 2 were taken to be stoichiometric. Moreover, the equilibrium oxygen pressure, phase equilibria, and enthalpy data were used to optimize the adjustable parameters of the models for a self-consistent representation of the thermodynamic behavior of the Pr–O system from 298 K to melting.
Authors:
 [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725; DE‐AC05‐00OR22725
Type:
Accepted Manuscript
Journal Name:
Journal of the American Ceramic Society (Online)
Additional Journal Information:
Journal Name: Journal of the American Ceramic Society (Online); Journal Volume: 99; Journal Issue: 3; Journal ID: ISSN 1551-2916
Publisher:
American Ceramic Society
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Temperature Materials Lab. (HTML)
Sponsoring Org:
USDOE Office of Nuclear Energy (NE)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
OSTI Identifier:
1237141
Alternate Identifier(s):
OSTI ID: 1401642

McMurray, Jake W. Thermodynamic assessment of the Pr-O system. United States: N. p., Web. doi:10.1111/jace.14049.
McMurray, Jake W. Thermodynamic assessment of the Pr-O system. United States. doi:10.1111/jace.14049.
McMurray, Jake W. 2015. "Thermodynamic assessment of the Pr-O system". United States. doi:10.1111/jace.14049. https://www.osti.gov/servlets/purl/1237141.
@article{osti_1237141,
title = {Thermodynamic assessment of the Pr-O system},
author = {McMurray, Jake W.},
abstractNote = {We found that the Calphad method was used to perform a thermodynamic assessment of the Pr–O system. Compound energy formalism representations were developed for the fluorite α-PrO 2–x and bixbyite σ-Pr 3 O 5 ± x solid solutions while the two-sublattice liquid model was used to describe the binary melt. The series of phases between Pr 2 O 3 and PrO 2 were taken to be stoichiometric. Moreover, the equilibrium oxygen pressure, phase equilibria, and enthalpy data were used to optimize the adjustable parameters of the models for a self-consistent representation of the thermodynamic behavior of the Pr–O system from 298 K to melting.},
doi = {10.1111/jace.14049},
journal = {Journal of the American Ceramic Society (Online)},
number = 3,
volume = 99,
place = {United States},
year = {2015},
month = {12}
}