Comparative study on thermal shock behavior of thick thermal barrier coatings fabricated with nano-based YSZ suspension and agglomerated particles
Source abstract
Abstract
Abstract Two kinds of segmentation-crack structured YSZ thick thermal barrier coatings (TTBCs) were deposited by suspension plasma spraying (SPS) and atmospheric plasma spraying (APS) with nano-based suspension and agglomerated particles, respectively. The phase composition, microstructure evolution and failure behavior of both TBCs before and after thermal shock tests were systematically investigated. Microstructure of the APS coating exhibits typical segmentation-crack structure in the through-thickness direction, similar with the SPS coating. The densities of segmentation-crack in APS and SPS coatings were about 3 cracks mm −1 and 4 cracks mm −1 , respectively. The microstructure observation also showed that the columnar and equiaxed grains existed in the SPS coating. As for the thermal shock test, the spallation life of the APS TTBCs was 146 cycles, close to that of the SPS TTBCs (166 cycles). Failure of the APS coating is due to the spallation of fringe segments and splats.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High-Temperature Coating Behaviors · Nuclear Materials and Properties · High Entropy Alloys Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (27)
Show source-provided references
1. Emerging materials and processes for thermal barrier systems10.1016/j.cossms.2004.03.009 ↗
2. Current status of thermal barrier coatings – an overview10.1016/0257-8972(87)90003-X ↗
3. Materials science – thermal barrier coatings for gas-turbine engine applications10.1126/science.1068609 ↗
4. Thermal barrier coatings for aircraft engines: history and directions10.1007/BF02646310 ↗
5. Ceramic materials for thermal barrier coatings10.1016/S0955-2219(03)00129-8 ↗
6. Thermophysical properties and thermal cycling behavior of plasma sprayed thick thermal barrier coatings10.1016/j.surfcoat.2004.02.004 ↗
7. Thermal cycling behavior and interfacial stability in thick thermal barrier coatings10.1016/j.surfcoat.2010.08.062 ↗
8. Thermal fatigue behavior of thick and porous thermal barrier coatings systems10.1007/s11666-007-9128-2 ↗
9. Atmospheric plasma sprayed thick thermal barrier coatings with high segmentation crack density10.1016/j.surfcoat.2004.01.002 ↗
10. Thick ceramic thermal barrier coatings with high durability deposited using solution-precursor plasma spray10.1016/j.msea.2005.06.023 ↗
11. Thermal shock behaviors of YSZ thick thermal barrier coatings fabricated by suspension and atmospheric plasma spraying10.1016/j.surfcoat.2014.03.046 ↗
12. Atmospheric plasma sprayed thermal barrier coatings with high segmentation crack densities: spraying process, microstructure and thermal cycling behavior10.1016/j.surfcoat.2011.06.032 ↗
13. Effect of substrate temperature on the microstructure and properties of thick plasma-sprayed YSZ TBCs10.1016/j.jeurceramsoc.2011.07.022 ↗
14. Correlation of thermal conductivity of suspension plasma sprayed yttria stabilized zirconia coatings with some microstructural effects10.1016/j.matlet.2013.06.051 ↗
15. Comparison of microstructure and mechanical properties of plasma-sprayed nanostructured and conventional yttria stabilized zirconia thermal bather coatings10.1016/j.ceramint.2013.04.068 ↗
16. Heat treatment of nanostructured thermal barrier coating10.1016/j.ceramint.2006.03.022 ↗
17. Bimodal distribution of mechanical properties on plasma sprayed nanostructured partially stabilized zirconia10.1016/S0921-5093(01)01530-1 ↗
18. Improving the thermal shock resistance of plasma sprayed CYSZ thermal barrier coatings by laser surface modification10.1016/j.optlaseng.2011.12.007 ↗
19. Comparison of thermal shock resistances of plasma-sprayed nano structured and conventional yttria stabilized zirconia thermal barrier coatings10.1016/j.ceramint.2012.05.060 ↗
20. Comparing the deposition mechanisms in suspension plasma spray (SPS) and solution precursor plasma spray (SPPS) deposition of yttria-stabilised zirconia (YSZ)10.1016/j.jeurceramsoc.2014.05.024 ↗
21. What do we know, what are the current limitations of suspension plasma spraying?10.1007/s11666-015-0286-3 ↗
22. Nanostructured YSZ thermal barrier coatings engineered to counteract sintering effects10.1016/j.msea.2007.07.082 ↗
23. Microstructure, mechanical properties and thermal shock resistance of plasma sprayed nanostructured zirconia coatings10.1016/j.ceramint.2011.04.024 ↗
24. Transient heating vs cooling of interfacial cracks in ceramic-to-metal bonds10.1016/0013-7944(91)90089-J ↗
25. Thermal shock resistances of nanostructured and conventional zirconia coatings deposited by atmospheric plasma spraying10.1016/j.surfcoat.2004.08.225 ↗
26. Kinetics and mechanism of isothermal oxidation of compositionally graded yttria stabilized zirconia (YSZ) based thermal barrier coating10.1016/j.corsci.2014.06.050 ↗
27. Thermal shock resistance of thermal bather coatings for nickel-based superalloy by supersonic plasma spraying10.1016/j.ceramint.2015.04.077 ↗