Study on the ablation resistance of ZrB2-SiC-LaSi2 coating prepared on the C/C composites

Guangyi Mu; Yanbo Liu; Xinchun Tian; Zhuang Ma; Shizhen Zhu; Ling Liu; Siyuan He; Shaopu Liu; Yifan Wang; Huanyu Chi

doi:10.1016/j.corsci.2023.111697

Study on the ablation resistance of ZrB₂-SiC-LaSi₂ coating prepared on the C/C composites

Guangyi Mu, Yanbo Liu^*, Xinchun Tian, Zhuang Ma, Shizhen Zhu, Ling Liu, Siyuan He, Shaopu Liu, Yifan Wang, Huanyu Chi

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

To improve the ablation resistance of C/C composites above 1800 ℃, ZrB₂-SiC coating and ZrB₂-SiC-LaSi₂ coating were prepared on the surface of C/C composites by atmospheric plasma spraying (APS). The microstructure, composition evolution and ablation resistance of the coatings were studied. First-principle calculations were used to analyze the ablation mechanism. The results showed that addition of LaSi₂ could improve the density and ablation resistance of ZrB₂-SiC coatings. LaSi₂ could produce more protective Si-O-La sealing phase and form high melting point compounds which stabilize the sealing phase and help improve the ablation resistance of ZrB₂-SiC coatings.

Original language	English
Article number	111697
Journal	Corrosion Science
Volume	227
DOIs	https://doi.org/10.1016/j.corsci.2023.111697
Publication status	Published - Feb 2024

Keywords

Ablation resistance
Atmospheric plasma spraying
Carbon/Carbon composites
LaSi
Ultra-high temperature ceramic coating

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10.1016/j.corsci.2023.111697

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title = "Study on the ablation resistance of ZrB2-SiC-LaSi2 coating prepared on the C/C composites",

abstract = "To improve the ablation resistance of C/C composites above 1800 ℃, ZrB2-SiC coating and ZrB2-SiC-LaSi2 coating were prepared on the surface of C/C composites by atmospheric plasma spraying (APS). The microstructure, composition evolution and ablation resistance of the coatings were studied. First-principle calculations were used to analyze the ablation mechanism. The results showed that addition of LaSi2 could improve the density and ablation resistance of ZrB2-SiC coatings. LaSi2 could produce more protective Si-O-La sealing phase and form high melting point compounds which stabilize the sealing phase and help improve the ablation resistance of ZrB2-SiC coatings.",

keywords = "Ablation resistance, Atmospheric plasma spraying, Carbon/Carbon composites, LaSi, Ultra-high temperature ceramic coating",

author = "Guangyi Mu and Yanbo Liu and Xinchun Tian and Zhuang Ma and Shizhen Zhu and Ling Liu and Siyuan He and Shaopu Liu and Yifan Wang and Huanyu Chi",

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year = "2024",

month = feb,

doi = "10.1016/j.corsci.2023.111697",

language = "English",

volume = "227",

journal = "Corrosion Science",

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T1 - Study on the ablation resistance of ZrB2-SiC-LaSi2 coating prepared on the C/C composites

AU - Mu, Guangyi

AU - Liu, Yanbo

AU - Tian, Xinchun

AU - Ma, Zhuang

AU - Zhu, Shizhen

AU - Liu, Ling

AU - He, Siyuan

AU - Liu, Shaopu

AU - Wang, Yifan

AU - Chi, Huanyu

PY - 2024/2

Y1 - 2024/2

N2 - To improve the ablation resistance of C/C composites above 1800 ℃, ZrB2-SiC coating and ZrB2-SiC-LaSi2 coating were prepared on the surface of C/C composites by atmospheric plasma spraying (APS). The microstructure, composition evolution and ablation resistance of the coatings were studied. First-principle calculations were used to analyze the ablation mechanism. The results showed that addition of LaSi2 could improve the density and ablation resistance of ZrB2-SiC coatings. LaSi2 could produce more protective Si-O-La sealing phase and form high melting point compounds which stabilize the sealing phase and help improve the ablation resistance of ZrB2-SiC coatings.

AB - To improve the ablation resistance of C/C composites above 1800 ℃, ZrB2-SiC coating and ZrB2-SiC-LaSi2 coating were prepared on the surface of C/C composites by atmospheric plasma spraying (APS). The microstructure, composition evolution and ablation resistance of the coatings were studied. First-principle calculations were used to analyze the ablation mechanism. The results showed that addition of LaSi2 could improve the density and ablation resistance of ZrB2-SiC coatings. LaSi2 could produce more protective Si-O-La sealing phase and form high melting point compounds which stabilize the sealing phase and help improve the ablation resistance of ZrB2-SiC coatings.

KW - Ablation resistance

KW - Atmospheric plasma spraying

KW - Carbon/Carbon composites

KW - LaSi

KW - Ultra-high temperature ceramic coating

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DO - 10.1016/j.corsci.2023.111697

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SN - 0010-938X

VL - 227

JO - Corrosion Science

JF - Corrosion Science

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ER -

Study on the ablation resistance of ZrB₂-SiC-LaSi₂ coating prepared on the C/C composites

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