DOI

The ceramics based on the Y 2 O 3 -ZrO 2 system is promising for development of refractory materials including ultra-high temperature ceramics. In the present study the samples of the Y 2 O 3 -ZrO 2 system were synthesized by the solid-state method. The vaporization processes and thermodynamic properties of the Y 2 O 3 -ZrO 2 system were studied by the Knudsen effusion mass spectrometric method. The vapor composition, the YO, ZrO, ZrO 2 and O partial pressures over the samples as well as the Y 2 O 3 and ZrO 2 activities of the Y 2 O 3 -ZrO 2 system were determined at the temperature 2660 K. Thermodynamic properties (i.e. excess Gibbs energies) of the Y 2 O 3 -ZrO 2 system obtained in the present study can be described in terms of the subregular solution model.

Original languageEnglish
Pages (from-to)606-614
Number of pages9
JournalJournal of Alloys and Compounds
Volume794
DOIs
StatePublished - 25 Jul 2019

    Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

    Research areas

  • Ceramics based on ZrO, Knudsen effusion mass spectrometry, Rare earth oxides, Thermodynamics, Vaporization, SYSTEM, ZIRCONIA, HAFNIA, DISSOCIATION-ENERGIES, PHASE-EQUILIBRIA, Ceramics based on ZrO2, YTTRIA, COATINGS, OXIDES

ID: 41540828