Effects of Oxygen Gas Flow During Deposition on the Thermal Shock Life of YSZ Thermal Barrier Coatings Prepared by Electron Beam Physical Vapor Deposition
Source abstract
Abstract
Electron beam physical vapor deposited (EB-PVD) thermal barrier coatings (TBCs) are widely used to protect the hot section parts of aircraft engine turbines due to its uniform columnar microstructure and high strain tolerance. The microstructure and thermal shock life of 7 wt% Y2O3 stabilized zirconia (YSZ) coatings produced by EB-PVD were investigated as a function of oxygen gas flow during deposition. The surface and cross-section microstructure of EB-PVD YSZ coatings were highly influenced by the oxygen gas flow. When the oxygen gas flow is less than 60 sccm, a sandwich is formed between the bond coat (BC) layer and the YSZ layer, which significantly reduces the thermal shock life of the coating.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: High-Temperature Coating Behaviors · Nuclear Materials and Properties · Metal and Thin Film Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Guiyang AECC Power Precision Casting Co., Ltd., Shawen Science Park Baiyan District, Guiyang 550000, China
Department of Mechanical and Electronic Engineering (Chinese-Foreign Cooperation), Dalian Polytechnic University, Dalian 116034, China
Department of Mechanical Engineering, Hunan Institute of Technology, Hengyang 421002, China
International Joint Laboratory for Light Alloys (MOE), College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Funding
Scientific Research Fund of the Hunan Provincial Education Department · Guizhou Provincial science and technology support project
References (23)
Show source-provided references
1. The hotter the engine, the better10.1126/science.1179327 ↗
2. Advances on strategies for searching for next generation thermal barrier coating materials10.1016/j.jmst.2018.11.016 ↗
3. Thermal barrier coatings-a state of the art review10.1007/s12540-020-00705-w ↗
4. Technical and economical aspects of current thermal barrier coating systems for gas turbine engines by thermal spray and EBPVD: A review10.1007/s11666-007-9148-y ↗
5. Coatings with columnar microstructures for thermal barrier applications10.1002/adem.201900988 ↗
6. Influence of processing on microstructure and performance of electron beam physical vapor deposition (EB-PVD) thermal barrier coatings10.1115/1.1447238 ↗
7. Study of structured properties of thick vacuum condensates of Nickel, Titanium, Tungsten, Aluminum oxide and zirconium dioxide
8. Revised structure zone model for thin film physical structure10.1116/1.572604 ↗
9. High rate thick film growth10.1146/annurev.ms.07.080177.001323 ↗
10. Crystallographic texture evolution in ZrO2–Y2O3 layers produced by electron beam physical vapor deposition10.1016/j.surfcoat.2003.08.084 ↗
11. Microstructure Modification of Yttria-Stabilized Zirconia Layers Prepared by EB-PVD10.2109/jcersj.111.883 ↗
12. Microstructure, texture and thermal cycling performance of EB-PVD TBCs deposited under different processing conditions10.1515/htmp.2011.111 ↗
13. Investigation on crystal orientations in EB-PVD YSZ coatings under different substrate rotation mode10.1016/j.jeurceramsoc.2023.05.010 ↗
14. Effects of substrate rotation speed during deposition on the thermal cycle life of thermal barrier coatings fabricated by electron beam physical vapor deposition10.1016/j.surfcoat.2007.12.035 ↗
15. Processing-structure-property relationships in electron beam physical vapor deposited yttria stabilized zirconia coatings10.1116/1.3563600 ↗
16. Development of deposition beam current dependent microstructure and nanomechanical properties in ZrO2-8wt% Y2O3 thermal barrier coatings produced by electron beam-physical vapor deposition technique10.1016/j.matchemphys.2021.124998 ↗
17. Influence of bias voltage and oxygen flow rate on morphology and crystallographic properties of gas flow sputtered zirconia coatings10.1016/j.surfcoat.2015.06.002 ↗
18. Texture and microstructure of ZrO2-4mol% Y2O3 layers obliquely deposited by EB-PVD10.1016/j.surfcoat.2005.02.121 ↗
19. Tailored microstructure of EB-PVD 8YSZ thermal barrier coatings with low thermal conductivity and high thermal reflectivity for turbine applications10.1016/j.surfcoat.2004.04.071 ↗
20. Thermocyclic Behavior of Differently Stabilized and structured EB-PVD thermal barrier coatings10.1002/mawe.19970280811 ↗
21. Effect of temperature on rumpling and thermally grown oxide stress in an EB-PVD thermal barrier coating10.1016/j.surfcoat.2006.07.212 ↗
22. Influences of deposition rate and oxygen partial pressure on residual stress and microstructure of YSZ thin films10.1016/j.tsf.2008.11.138 ↗
23. Schulz, U., Miinzer, J., and Kaclen, U. (2002). Influence of Deposition Conditions on Density and Microstructure of EB–PVD TBCs. 26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, John Wiley & Sons, Inc.