Hot corrosion behavior of double ceramic layered CaZrO 3 /Yttria‐stabilized zirconia coatings
Source abstract
Abstract
Abstract A novel double ceramic layered ( DCL ) CaZrO 3 /Yttria‐stabilized zirconia ( YSZ ) thermal barrier coatings ( TBC s) was designed for improved service life against sulfate vanadate hot corrosion as compared with that of YSZ single layered coating. The hot corrosion behavior of DCL CaZrO 3 / YSZ coatings was studied at 950°C after dry spreading 50%Na 2 SO 4 +50%V 2 O 5 mixture onto a coated surface. The CaZrO 3 as the topmost layer in DCL CaZrO 3 / YSZ coatings, served as a sacrificial layer during sulfate vanadate hot corrosion protecting the underneath YSZ coating. The corrosion reactions in this case were sluggish due to the initial formation of low melting point meta‐calcium vanadate (CaV 2 O 6 ) that isothermally transformed to higher melting point calcium vanadates having higher calcia (CaO) content. The corrosion reaction products sealed the top surface, impeding the oxygen movement and eventually retarded the thermally grown oxide ( TGO ) growth. The sulfate vanadate hot corrosion life of the DCL CaZrO 3 / YSZ coatings was observed to be more than double as compared with single ceramic layered YSZ coatings.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: High-Temperature Coating Behaviors · Advancements in Solid Oxide Fuel Cells · Corrosion Behavior and Inhibition
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Metallurgical and Materials Engineering University of Engineering and Technology Lahore Pakistan
Institute of Industrial Control Systems Rawalpindi Pakistan
References (44)
Show source-provided references
1. 10.1007/s11666-006-5001-y10.1007/s11666-006-5001-y ↗
2. 10.1361/10599639977035054810.1361/105996399770350548 ↗
3. KasparJ AmbrozO.Plasma spray coatings as thermal barriers based on zirconium oxide with yttrium oxide. Presented at The 1st Plasma‐Technik‐Symposium Plasma‐Technik AG Wohlen Switzerland;1988: 155–66.
4. Vaßen R · 1998 · 1627
5. Thornton J · 1995 · 1075
6. Development of hot‐corrosion‐resistant zirconia thermal barrier coatings10.1080/09603409.1991.11689664 ↗
7. 10.1007/BF0264631510.1007/BF02646315 ↗
8. 10.1016/j.ceramint.2015.12.08510.1016/j.ceramint.2015.12.085 ↗
9. 10.1016/j.ceramint.2016.11.10910.1016/j.ceramint.2016.11.109 ↗
10. 10.1016/j.surfcoat.2016.01.01210.1016/j.surfcoat.2016.01.012 ↗
11. 10.1016/j.matdes.2016.03.13310.1016/j.matdes.2016.03.133 ↗
12. 10.1016/j.jallcom.2015.05.18910.1016/j.jallcom.2015.05.189 ↗
13. 10.1016/j.ceramint.2015.06.09010.1016/j.ceramint.2015.06.090 ↗
14. 10.1007/s11666-015-0254-y10.1007/s11666-015-0254-y ↗
15. 10.1016/j.ceramint.2016.07.07910.1016/j.ceramint.2016.07.079 ↗
16. 10.1016/j.ceramint.2016.06.20110.1016/j.ceramint.2016.06.201 ↗
17. 10.1016/j.jallcom.2016.07.33310.1016/j.jallcom.2016.07.333 ↗
18. 10.1016/j.jallcom.2016.05.34710.1016/j.jallcom.2016.05.347 ↗
19. 10.1016/j.surfcoat.2016.10.02710.1016/j.surfcoat.2016.10.027 ↗
20. 10.1016/j.ceramint.2016.05.14110.1016/j.ceramint.2016.05.141 ↗
21. 10.1016/j.matdes.2016.09.05010.1016/j.matdes.2016.09.050 ↗
22. 10.1016/j.ceramint.2016.01.14710.1016/j.ceramint.2016.01.147 ↗
23. 10.1016/j.corsci.2014.04.00110.1016/j.corsci.2014.04.001 ↗
24. 10.1016/S0022-4596(02)00166-410.1016/S0022-4596(02)00166-4 ↗
25. 10.1016/j.jssc.2009.12.01510.1016/j.jssc.2009.12.015 ↗
26. Behavior of calcia‐stabilized zirconia coating at high temperature, deposited by air plasma spraying system10.1007/s11666-011-9692-3 ↗
27. Neufuss K · 2003
28. 10.1016/S0955-2219(03)00122-510.1016/S0955-2219(03)00122-5 ↗
29. 10.1016/S0921-5093(03)00342-310.1016/S0921-5093(03)00342-3 ↗
30. 10.1016/S0040-6090(97)80005-310.1016/S0040-6090(97)80005-3 ↗
31. OthmerK ed.Kirk‐othmer encyclopedia of chemical technology 27 Volume Set Vol. 24. May2007
32. 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 ↗
33. 10.1016/j.ceramint.2012.08.07610.1016/j.ceramint.2012.08.076 ↗
34. Levin EM · 1985 · 109
35. 10.1007/s11666-015-0374-410.1007/s11666-015-0374-4 ↗
36. Thermodynamic analysis of the reaction of vanadium oxides with oxides of sodium, potassium, calcium, barium, and manganese10.3103/S096709120709015X ↗
37. 10.1111/j.1151-2916.1984.tb19683.x10.1111/j.1151-2916.1984.tb19683.x ↗
38. 10.1007/s11666-017-0568-z10.1007/s11666-017-0568-z ↗
39. Bose S · 2007
40. 10.1016/0022-4596(89)90269-710.1016/0022-4596(89)90269-7 ↗
41. Meier SM · 1992 · 258
42. 10.1111/jace.1262110.1111/jace.12621 ↗
43. 10.1016/j.apsusc.2012.08.00210.1016/j.apsusc.2012.08.002 ↗
44. 10.1007/s10853-009-3284-310.1007/s10853-009-3284-3 ↗