Assessment of thermodynamic functions in the ZrO2–La2O3–Al2O3 system

Fabrichnaya, Olga; Lakiza, S. M.; Ch, Wang; Zinkevich, M.; Aldinger, Fritz

doi:10.1016/j.jallcom.2006.11.102

Cited by 30 publications

(26 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The parameters of pyrochlore were re-assessed to be consistent with the description of pyrochlore in the ZrO 2 -La 2 O 3 -Al 2 O 3 system. [25] Additionally, mixing parameters of B, C, H and X phases were re-optimized to fit the phase equilibrium data. The calculated phase diagram for the ZrO 2 -Gd 2 O 3 system is presented in Fig.…”

Section: Binary Systemsmentioning

confidence: 99%

“…The calculated thermodynamic data for the Gd 2 O 3 -Al 2 O 3 and ZrO 2 -Gd 2 O 3 systems in comparison with experimental data [16,24,[43][44][45][46][47] are given in Table 4. Thermodynamic descriptions of the ZrO 2 -Al 2 O 3 [15,25] and …”

Section: Binary Systemsmentioning

confidence: 99%

“…1 2011 [12,22] systems are based only on phase equilibrium data and therefore are less reliable than datasets based on both kinds of experimental information on phase relations and thermodynamic measurements. The accepted descriptions are from the work of Fabrichnaya et al [25] for the ZrO 2 -Al 2 O 3 system and from Zinkevich [12] for the Gd 2 O 3 -Y 2 O 3 system. The latest dataset for the ZrO 2 -Al 2 O 3 system can be found in work of Fabrichnaya et al [25] The thermodynamic parameters of the Y 2 O 3 -Al 2 O 3 system were re-assessed in Ref 2 using phase equilibrium data and calorimetric measurements the same as in Ref 48.…”

Section: Binary Systemsmentioning

confidence: 99%

“…The accepted descriptions are from the work of Fabrichnaya et al [25] for the ZrO 2 -Al 2 O 3 system and from Zinkevich [12] for the Gd 2 O 3 -Y 2 O 3 system. The latest dataset for the ZrO 2 -Al 2 O 3 system can be found in work of Fabrichnaya et al [25] The thermodynamic parameters of the Y 2 O 3 -Al 2 O 3 system were re-assessed in Ref 2 using phase equilibrium data and calorimetric measurements the same as in Ref 48. The latest assessment of this system was published by Fabrichnaya et al [17] It should be also mentioned that the descriptions of the ZrO 2 -Y 2 O 3 and Y 2 O 3 -Al 2 O 3 systems as well as of the ZrO 2 -Gd 2 O 3 and Gd 2 O 3 -Al 2 O 3 systems were checked for consistency with tie-lines in ternary systems ZrO 2 -Y 2 O 3 -Al 2 O 3 and ZrO 2 -Gd 2 O 3 -Al 2 O 3 .…”

Section: Binary Systemsmentioning

confidence: 99%

See 3 more Smart Citations

Up-Date of a Thermodynamic Database of the ZrO2-Gd2O3-Y2O3-Al2O3 System for TBC Applications

Fabrichnaya

Seifert

2010

J. Phase Equilib. Diffus.

Self Cite

View full text Add to dashboard Cite

The thermodynamic database of the ZrO 2 -Gd 2 O 3 -Y 2 O 3 -Al 2 O 3 system is up-dated taking into account new data on lattice stabilities of ZrO 2 , Gd 2 O 3 and Y 2 O 3 and heat capacity measurements for the monoclinic phase Gd 4 Al 2 O 9 and phase with garnet structure Gd 3 Al 5 O 12 . New data for the heat capacities of Gd 2 Zr 2 O 7 (pyrochlore) and GdAlO 3 (perovskite) as well as on the enthalpy of formation of fluorite solid solutions (Zr 12x Gd x )O 22x/2 were found to be in good agreement with calculated results. In comparison with the previous assessment, taking into account new experimental data resulted in a change of the melting character of the Gd 4 Al 2 O 9 phase from a peritectic one to a congruent one in the Gd 2 O 3 -Al 2 O 3 system. Correspondently, in the ternary system ZrO 2 -Gd 2 O 3 -Al 2 O 3 , the melting character of the three-phase assemblage Gd 2 O 3 (B), Gd 4 Al 2 O 9 and GdAlO 3 changed from eutectic to transition type U. The T 0 -lines for T/M and F/T diffusionless transformations and driving force of partitioning to equilibrium assemblage T + F were calculated in the ZrO 2 -Gd 2 O 3 -Y 2 O 3 system.

show abstract

Section: Binary Systemsmentioning

confidence: 99%

Section: Binary Systemsmentioning

confidence: 99%

Section: Binary Systemsmentioning

confidence: 99%

Section: Binary Systemsmentioning

confidence: 99%

See 2 more Smart Citations

Up-Date of a Thermodynamic Database of the ZrO2-Gd2O3-Y2O3-Al2O3 System for TBC Applications

Fabrichnaya

Seifert

2010

J. Phase Equilib. Diffus.

Self Cite

View full text Add to dashboard Cite

show abstract

“…95% base material produced at the Donetsk Chemical Reagent Plant, and La 2 O 3 of OSCh LaoD grade (as per OST-48-194-81).Table 1shows compositions of the samples. The powders were chosen using data on their interaction in the Al 2 O 3 -ZrO 2 -La 2 O 3 system[13,14]. Prior to weighing, the Al 2 O 3 and HfO 2 powders were annealedTABLE 1.…”

mentioning

confidence: 99%