Phase stability and hot corrosion behavior of ZrO2–Ta2O5 compound in Na2SO4–V2O5 mixtures at elevated temperatures
Source abstract
Abstract
Abstract For thermal barrier coating (TBC) applications, yttria stabilized zirconia (YSZ) is susceptible to hot corrosion. This paper examines the hot corrosion performance of ZrO 2 /Ta 2 O 5 compounds. Different compositions of ZrO 2 –Ta 2 O 5 samples in the presence of molten mixture of Na 2 SO 4 +V 2 O 5 at 1100 °C were tested. The compositions were selected to form tetragonal and orthorhombic phases of zirconium-tantalum oxides. Results show that orthorhombic zirconium-tantalum oxide is more stable, both thermally and chemically in Na 2 SO 4 +V 2 O 5 media at 1100 °C, and shows a better hot corrosion resistance than the tetragonal phase.
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Research context
OpenAlex topics: High-Temperature Coating Behaviors · Advanced materials and composites · Nuclear Materials and Properties
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References (43)
Show source-provided references
1. Thermal shock behavior of 8YSZ and double-ceramic-layer La2Zr2O7/8YSZ thermal barrier coatings fabricated by atmospheric plasma spraying10.1016/j.ceramint.2011.12.076 ↗
2. Synthesis, spheroidization and spray deposition of lanthanum zirconate using thermal plasma process10.1016/j.surfcoat.2011.10.052 ↗
3. Evaluation of hot corrosion behavior of plasma sprayed ceria and yttria stabilized zirconia thermal barrier coatings in the presence of Na2SO4+V2O5 molten salt10.1016/j.ceramint.2012.05.047 ↗
4. Influence of critical plasma spraying parameter (CPSP) on plasma sprayed alumina–titania composite coatings10.1016/j.ceramint.2009.07.012 ↗
5. Corrosion of selected ceramic materials in hot gas environment10.1016/j.jeurceramsoc.2006.01.015 ↗
6. Thermal cycling behaviour of plasma sprayed lanthanum zirconate based coatings under concurrent infiltration by a molten glass concoction10.1016/j.ceramint.2012.07.084 ↗
7. Some aspects of the hot corrosion of thermal barrier coatings10.1007/BF02646315 ↗
8. R.L. Jones, Vanadate-Sulfate Melt Thermochemistry Relating to Hot Corrosion of Thermal Barrier Coatings, Naval Research Laboratory, 1997, pp. 1–10.
9. Phase structure and thermophysical properties of co-doped La2Zr2O7 ceramics for thermal barrier coatings10.1016/j.ceramint.2011.12.077 ↗
10. Effect of 7YSZ on the long-term stability of YTaO4 doped ZrO2 system10.1016/j.jeurceramsoc.2011.05.046 ↗
11. Review on advanced EB-PVD ceramic topcoats for TBC applications10.1111/j.1744-7402.2004.tb00182.x ↗
12. Structure and thermal properties of heat treated plasma sprayed ceria–yttria co-stabilized zirconia coatings10.1016/j.ceramint.2009.10.020 ↗
13. Degradation of yttria-stabilized zirconia thermal barrier coatings by vanadium pentoxide, phosphorous pentoxide, and sodium sulfate10.1111/j.1551-2916.2007.01941.x ↗
14. M.H. Habibi, L. Wang, S. Guo, An investigation on hot corrosion resistance of plasma sprayed composite YSZ–Gd2Zr2O7 and Gd2Zr2O7 thermal barrier coayings in simulated turbine environment at 1050°C, in: Proceedings of the 12th ASME 2012 International Mechanical Engineering Congress, ASME, Houston,Texas, 2012.10.1115/IMECE2012-88435 ↗
15. Microscopic observation of degradation behavior in yttria and ceria stabilized zirconia thermal barrier coatings under hot corrosion10.1016/j.surfcoat.2004.04.065 ↗
16. Degradation of plasma-sprayed yttria-stabilized zirconia coatings via ingress of vanadium oxide10.1016/j.jeurceramsoc.2008.10.003 ↗
17. M. Saremi, M.H. Habibi, An investigation on hot corrosion resistance of plasma sprayed YSZ–Ceria TBC in Na2SO4+V2O5 at 1050 °C, in: TMS 2011 – 140th Annual Meeting and Exhibition, Supplemental Proceedings, John Wiley & Sons, Inc., 2011, pp. 429–437.10.1002/9781118062111.ch48 ↗
18. The hot corrosion resistance of 20mol% YTaO4 stabilized tetragonal zirconia and 14mol% Ta2O5 stabilized orthorhombic zirconia for thermal barrier coating applications10.1016/S0257-8972(02)00393-6 ↗
19. Thermal properties of ceria and yttria partially stabilized zirconia thermal barrier coatings10.1016/0257-8972(89)90049-2 ↗
20. Opportunities for TBCs in the ZrO2–YO1.5–TaO2.5 system10.1016/j.surfcoat.2006.11.011 ↗
21. Tantalum oxide coatings as candidate environmental barriers10.1007/s11666-004-0049-z ↗
22. Thermal properties of zirconia co-doped with trivalent and pentavalent oxides10.1016/S1359-6454(00)00295-0 ↗
23. Ta2O5/Nb2O5 and Y2O3 co-doped zirconias for thermal barrier coatings10.1111/j.1551-2916.2004.00431.x ↗
24. Low thermal conductivity without oxygen vacancies in equimolar YO1.5+TaO2.5- and YbO1.5+TaO2.5-stabilized tetragonal zirconia ceramics10.1016/j.actamat.2010.04.040 ↗
25. Ta2O5–Y2O3–ZrO2 system: experimental study and preliminary thermodynamic description10.1016/j.jeurceramsoc.2010.09.009 ↗
26. V2O5, Nb2O5 and Ta2O5 doped zirconia ceramics10.1016/0955-2219(94)90015-9 ↗
27. Phase stability and physical properties of cubic and tetragonal ZrO2 in the system ZrO2–Y2O3–Ta2O510.1111/j.1151-2916.1991.tb04302.x ↗
28. Vanadia reaction with yttria stabilized zirconia10.1063/1.340327 ↗
29. Evolution of hot corrosion resistance of YSZ, Gd2Zr2O7, and Gd2Zr2O7+YSZ composite thermal barrier coatings in Na2SO4+V2O5 at 1050°C10.1016/j.jeurceramsoc.2012.01.006 ↗
30. NIST-JANAF Thermochemical Tables, 〈http://kinetics.nist.gov/janaf/〉.
31. Impurity deposits in gas turbines from fuels coating sodium and vanadium10.1149/1.2123941 ↗
32. Chemical potential diagrams for rare earth-transition metal-oxygen systems: Ln–V–O and Ln–Mn–O systems10.1111/j.1151-2916.1990.tb06567.x ↗
33. Alla D. Mah, Thermodynamic Properties of Vanadium and its Compounds, Report of Investigations/United States Department of the Interior, Bureau of Mines, Number 6727, 1966.
34. Barin · 1973
35. Na2SO4-Induced corrosion of Si3N4 coated with chemically vapor deposited Ta2O510.1111/j.1151-2916.1995.tb08911.x ↗
36. Etude des systems Na3AlF6–Ta2O5 ET Na3AlF6–NaTaO310.1016/0013-4686(75)90060-2 ↗
37. Ab initio molecular dynamics for liquid metals10.1103/PhysRevB.47.558 ↗
38. Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set10.1016/0927-0256(96)00008-0 ↗
39. Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set10.1103/PhysRevB.54.11169 ↗
40. VASP 2013 manual. Available from: http://cms.mpi.univie.ac.at/vasp/.
41. Projector augmented-wave method10.1103/PhysRevB.50.17953 ↗
42. From ultrasoft pseudopotentials to the projector augmented-wave method10.1103/PhysRevB.59.1758 ↗
43. Investigations on the quasi-binary system V2O5–Ta2O510.1002/crat.2170270520 ↗