Abstract
Abstract Thermodynamic and phase diagram experimental data relevant to the Zr–O binary system have been assessed. A set of Gibbs energy functions describing the phases in this system is presented. The adjustable parameters of the models are obtained by least-squares fit to the experimental data. The liquid phase is described by Hillert’s partially ionic liquid model. The interstitial solid solution model is applied to the metallic zirconium solid solutions bZr and αZr. The ordering αZr is described by a three-sublattice model with Bragg-Williams treatment of ordering. The two modifications of the zirconium dioxide, αZrO2 and bZrO2, are modelled as stoichiometric phases. The modification cZrO2 is described by the Wagner-Schottky model expressed in the compound-energy formalism. The gas phase is treated as an ideal solution of the species Zr, Zr2,O1, O2, O3, ZrO and ZrO2. The calculated phase diagrams and values for the thermodynamic properties are compared with experimental data.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
