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Journal of Phase Equilibria

, Volume 22, Issue 2, pp 105–113 | Cite as

Thermodynamic assessment of the lanthanum-oxygen system

  • A. Nicholas Grundy
  • Bengt Hallstedt
  • Ludwig J. Gauckler
Basic And Applied Research

Abstract

The data on the thermodynamic properties of La2O3 have been reviewed and optimized using the CALPHAD method. A consistent set of parameters is presented. Data on this system are scarce and, with the exception of a few datapoints on substoichiometric La2O3−x and one measurement of oxygen solubility in La metal, limited to the properties of pure La and pure La2O3. Using the optimized parameters, a tentative phase diagram and stability diagram have been calculated.

Keywords

Interstitial Site Stability Diagram Oxygen Solubility Lanthanum Oxide Molar Gibbs Energy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© ASM International 2001

Authors and Affiliations

  • A. Nicholas Grundy
    • 1
  • Bengt Hallstedt
    • 1
  • Ludwig J. Gauckler
    • 1
  1. 1.Department of Materials, Institute of Nonmetallic Materials, Swiss Federal Institute of TechnologyETH ZurichZurichSwitzerland

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