| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10644328 | Calphad | 2005 | 8 Pages |
Abstract
The thermodynamic parameters are assessed for the HfO2-Y 2O3 system based on phase equilibrium data, calorimetric and vapour pressure data. The thermodynamic description for the HfO2-Al2O3 system is derived from phase equilibrium data. The obtained thermodynamic descriptions of binary systems are combined with literature data for the Y 2O3-Al2O3 system and the thermodynamic database for the HfO2-Y 2O3-Al2O3 system is derived assuming that ternary interaction parameters in all phases are equal to zero. The isothermal sections are calculated in the temperature range 1373-2073Â K. The calculated liquidus surface for the HfO2-Y 2O3-Al2O3 system is similar to the one for the ZrO2-Y 2O3-Al2O3 system.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
O. Fabrichnaya, C. Mercer,