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Journal of Advanced Ceramics 2022, 11(7): 1093-1103 https://doi.org/10.1007/s40145-022-0596-0
Research Article | Open Access | Issue | Published: 04 May 2022

Al-modification for PS-PVD 7YSZ TBCs to improve particle erosion and thermal cycle performances

Show Author's Information Xiaofeng ZHANGa,†( ),  Ming LIb,†,  Ao ZHANGb,  Shuangquan GUOc,  Jie MAOa,  Chunming DENGa,  Panpan WANGd,  Changguang DENGa,  Junli FENGe,  Min LIUa( ),  Kesong ZHOUa,  Cheng LAIb
National Engineering Laboratory for Modern Materials Surface Engineering Technology & the Key Lab of Guangdong for Modern Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Science, Guangzhou 510650, China
PERA Guangzhou Information Technology Co., Ltd., Guangzhou 510650, China
Chengdu Holy (Group) Industry Co., Ltd., Chengdou 610000, China
School of Aviation and Mechanical Engineering, Changzhou Institute of Technology, Changzhou 213032, China
Shenzhen Customs Industrial Products Inspection Technology Center, Shenzhen 518067, China

† Xiaofeng Zhang and Ming Li contributed equally to this work.

Keywords:
thermal barrier coatings (TBCs), plasma spray-physical vapor deposition (PS-PVD), Al-modification, particle erosion resistance, thermal cycle performance
Cite this article:
ZHANG X, LI M, ZHANG A, et al. Al-modification for PS-PVD 7YSZ TBCs to improve particle erosion and thermal cycle performances. Journal of Advanced Ceramics, 2022, 11(7): 1093-1103. https://doi.org/10.1007/s40145-022-0596-0
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Abstract Full text About this article

Plasma spray-physical vapor deposition (PS-PVD) as a novel process was used to prepare feather-like columnar thermal barrier coatings (TBCs). This special microstructure shows good strain tolerance and non-line-of-sight (NLOS) deposition, giving great potential application in aero-engine. However, due to serious service environment of aero-engine, particle erosion performance is a weakness for PS-PVD 7YSZ TBCs. As a solution, an Al-modification approach was proposed in this investigation. Through in-situ reaction of Al and ZrO2, an α-Al2O3 overlay can be formed on the surface of 7YSZ columnar coating. The results demonstrate that this approach can improve particle erosion resistance since hardness improvement of Al-modified TBCs. Meanwhile, as another important performance of thermal cycle, it has a better optimization with 350-cycle water-quenching, compared with the as-sprayed TBCs.


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About this article

Al-modification for PS-PVD 7YSZ TBCs to improve particle erosion and thermal cycle performances

Show Author's information Xiaofeng ZHANGa,†( ), Ming LIb,†, Ao ZHANGb, Shuangquan GUOc, Jie MAOa, Chunming DENGa, Panpan WANGd, Changguang DENGa, Junli FENGe, Min LIUa( ), Kesong ZHOUa, Cheng LAIb
National Engineering Laboratory for Modern Materials Surface Engineering Technology & the Key Lab of Guangdong for Modern Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Science, Guangzhou 510650, China
PERA Guangzhou Information Technology Co., Ltd., Guangzhou 510650, China
Chengdu Holy (Group) Industry Co., Ltd., Chengdou 610000, China
School of Aviation and Mechanical Engineering, Changzhou Institute of Technology, Changzhou 213032, China
Shenzhen Customs Industrial Products Inspection Technology Center, Shenzhen 518067, China

† Xiaofeng Zhang and Ming Li contributed equally to this work.

Abstract

Plasma spray-physical vapor deposition (PS-PVD) as a novel process was used to prepare feather-like columnar thermal barrier coatings (TBCs). This special microstructure shows good strain tolerance and non-line-of-sight (NLOS) deposition, giving great potential application in aero-engine. However, due to serious service environment of aero-engine, particle erosion performance is a weakness for PS-PVD 7YSZ TBCs. As a solution, an Al-modification approach was proposed in this investigation. Through in-situ reaction of Al and ZrO2, an α-Al2O3 overlay can be formed on the surface of 7YSZ columnar coating. The results demonstrate that this approach can improve particle erosion resistance since hardness improvement of Al-modified TBCs. Meanwhile, as another important performance of thermal cycle, it has a better optimization with 350-cycle water-quenching, compared with the as-sprayed TBCs.

Keywords: thermal barrier coatings (TBCs), plasma spray-physical vapor deposition (PS-PVD), Al-modification, particle erosion resistance, thermal cycle performance

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Publication history

Received: 24 May 2021
Revised: 25 March 2022
Accepted: 03 April 2022
Published: 04 May 2022
Issue date: July 2022

Copyright

© The Author(s) 2022.

Acknowledgements

We would like to acknowledge the financial support from the National Natural Science Foundation of China (52172067), Guangdong Province Outstanding Youth Foundation (2021B1515020038), Guangdong Special Support Program (2019BT02C629), and Guangdong Academy of Sciences Program (2020GDASYL-20200104030).

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