Applications of synchrotron-based X-ray diffraction in investigating thermal barrier coatings

Zhou, Ruhao; Zhang, Heng; Gao, Xingyu; Sun, Bo; Li, Chun; Wu, Peng; Cai, Huangyue; Pei, Yanling; Li, Shusuo; Tai, Renzhong; Zhao, Xiaofeng; Gong, Shengkai

doi:10.1016/j.jmrt.2023.12.196

Journal of Materials Research and Technology

2024

DOI: 10.1016/j.jmrt.2023.12.196

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Applications of synchrotron-based X-ray diffraction in investigating thermal barrier coatings

Ruhao Zhou,

Heng Zhang,

Xingyu Gao

et al.

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2024

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Cited by 3 publications

References 96 publications

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High temperature in-situ synchrotron X-ray diffraction technique of thermal barrier coatings under thermal gradient and mechanical loads

Zhou,

Sun,

Cai

et al. 2024

Journal of Materials Research and Technology

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High temperature in-situ synchrotron X-ray diffraction technique of thermal barrier coatings under thermal gradient and mechanical loads

Zhou,

Sun,

Cai

et al. 2024

Journal of Materials Research and Technology

View full text Add to dashboard Cite

Development of a compact near-infrared lamp furnace for synchrotron powder diffraction and its application for in situ high-temperature observation of ferrite magnets

Kobayashi,

Kawaguchi

2024

Science and Technology of Advanced Materials: Methods

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Thermal cycling behavior of Sr_x(Zr_0.9Y_0.05Yb_0.05)O_1.95+x thermal barrier coatings by suspension plasma spraying

Feng,

Bai,

Gao

et al. 2024

J Am Ceram Soc.

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The thermal barrier coatings (TBCs) consisting of Srx(Zr0.9Y0.05Yb0.05)O1.95+x were prepared using the suspension plasma spraying (SPS) method. Precursor suspensions were prepared via co‐precipitation for this purpose. Detailed microstructural, phase composition, and phase content analyses were conducted on these coatings, designated as SZYY‐1 (x = 1.0), SZYY‐2 (x = 0.9), and SZYY‐3 (x = 0.8). Additionally, the coatings underwent a thermal cycling test at 1121°C for 1 h. To assess the morphology of thermally grown oxide (TGO) in a real coating, a finite element model was employed. SPS‐SZYY‐2 with columnar crystal structure was found to have the highest number of thermal cycling, up to 345 times. The thermophysical high‐temperature properties of the coating can be effectively improved through suitable second‐phase content. Microstructural and finite element analyses revealed that stress, primarily caused by the continuous growth of the Co3O4, NiO and Spinel (CNS) layer within TGO, was the predominant factor leading to coating failure. At elevated temperatures, transverse cracks formed at the interface between the bond coating and ceramic top coating due to mismatched thermal expansion and sintering effects, ultimately leading to coating degradation. Therefore, reducing the generation rate of large stresses in the coating, especially shear stresses, can effectively prevent the generation and propagation of transverse cracks and increase the thermal cycling life of TBCs.

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Applications of synchrotron-based X-ray diffraction in investigating thermal barrier coatings

Cited by 3 publications

References 96 publications

High temperature in-situ synchrotron X-ray diffraction technique of thermal barrier coatings under thermal gradient and mechanical loads

High temperature in-situ synchrotron X-ray diffraction technique of thermal barrier coatings under thermal gradient and mechanical loads

Development of a compact near-infrared lamp furnace for synchrotron powder diffraction and its application for in situ high-temperature observation of ferrite magnets

Thermal cycling behavior of Sr_x(Zr_0.9Y_0.05Yb_0.05)O_1.95+x thermal barrier coatings by suspension plasma spraying

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Applications of synchrotron-based X-ray diffraction in investigating thermal barrier coatings

Cited by 3 publications

References 96 publications

High temperature in-situ synchrotron X-ray diffraction technique of thermal barrier coatings under thermal gradient and mechanical loads

High temperature in-situ synchrotron X-ray diffraction technique of thermal barrier coatings under thermal gradient and mechanical loads

Development of a compact near-infrared lamp furnace for synchrotron powder diffraction and its application for in situ high-temperature observation of ferrite magnets

Thermal cycling behavior of Srx(Zr0.9Y0.05Yb0.05)O1.95+x thermal barrier coatings by suspension plasma spraying

Contact Info

Product

Resources

About

Thermal cycling behavior of Sr_x(Zr_0.9Y_0.05Yb_0.05)O_1.95+x thermal barrier coatings by suspension plasma spraying