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Title: Thermodynamic assessment of the Pr-O system

Journal Article · · Journal of the American Ceramic Society (Online)
DOI:https://doi.org/10.1111/jace.14049· OSTI ID:1237141
 [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

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. 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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). High Temperature Materials Lab. (HTML)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE)
Grant/Contract Number:
AC05-00OR22725; DE‐AC05‐00OR22725
OSTI ID:
1237141
Alternate ID(s):
OSTI ID: 1401642
Journal Information:
Journal of the American Ceramic Society (Online), Vol. 99, Issue 3; ISSN 1551-2916
Publisher:
American Ceramic SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

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Cited By (1)

Thermal decomposition of praseodymium nitrate hexahydrate Pr(NO3)3·6H2O journal March 2018

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