Thermodynamic evaluation of the Nb–O–Zr system

Thermodynamic properties of the ternary system Nb–O–Zr have been evaluated by means of the CALPHAD (CALculation of PHAse Diagrams) method. The pertinent experimental data are surveyed and the thermodynamic models based on the previous assessments of the binary systems Nb–O, Nb–Zr and O–Zr are deline...

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Bibliographic Details
Published in:Journal of nuclear materials 2007-03, Vol.360 (3), p.242-254
Main Authors: Pérez, R. Jerlerud, Massih, A.R.
Format: Article
Language:English
Subjects:
905 k
Applied sciences
diffraction
Energy
Exact sciences and technology
Fuels
heat-capacity measurement
Materials science
mechanical-properties
niobium
Nuclear fuels
Other materials science
oxygen alloys
phase
Preparation and processing of nuclear fuels
TECHNOLOGY
TEKNIKVETENSKAP
Teknisk materialvetenskap
temperature
transformation
zirconium-alloys
Övrig teknisk materialvetenskap
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Summary:Thermodynamic properties of the ternary system Nb–O–Zr have been evaluated by means of the CALPHAD (CALculation of PHAse Diagrams) method. The pertinent experimental data are surveyed and the thermodynamic models based on the previous assessments of the binary systems Nb–O, Nb–Zr and O–Zr are delineated. The results of our computations indicate that the models describe the zirconium rich portion of the ternary phase diagram satisfactorily, however, in the niobium rich part, the calculations differ from the experimental data and should be verified by new experiments.
ISSN:0022-3115
1873-4820
1873-4820
DOI:10.1016/j.jnucmat.2006.10.008