Thermodynamic modeling of the chromium-yttrium-oxygen system

Huixia Xu, Ming Chen*, Kaiming Cheng, Lijun Zhang, Yong Du

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Based on the CALPHAD (CALculation of PHAse Diagrams) method, a complete thermodynamic description of the Cr-Y-O ternary system is obtained in the present work. The thermodynamic properties of YCrO3 phase are critically assessed and the experimentally determined Cr2O3-Y2O3 quasi-binary section is reproduced. The current optimization results agree well with most of the experimental data in literature. The thermodynamic description of Cr-Y-O is then used to calculate the phase relations under different temperatures or oxygen partial pressures. The stability of the YCrO3 phase is discussed based on the calculation results.
Original languageEnglish
JournalC A L P H A D
Pages (from-to)1-10
Publication statusPublished - 2019


  • Phase diagram
  • Thermodynamic modeling
  • Cr2O3-Y2O3
  • YCrO3
  • Chromium-yttrium- oxygen

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