Long-time ablation behavior of the multilayer alternating CVD-(SiC/HfC)3 coating for carbon/carbon composites

Jian Zhang; Yulei Zhang; Yanqin Fu; Xiaofei Zhu; Ruicong Chen

doi:10.1016/j.corsci.2021.109586

Long-time ablation behavior of the multilayer alternating CVD-(SiC/HfC)₃ coating for carbon/carbon composites

Jian Zhang, Yulei Zhang, Yanqin Fu, Xiaofei Zhu, Ruicong Chen

Northwestern Polytechnical University Xian

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

61 Scopus citations

Abstract

To improve the service life of carbon/carbon (C/C) composites under ultra-high temperature ablation environments (> 2200 ℃), SiC/HfC coating with multi-layer alternating structure was designed and prepared on C/C composites by low-pressure chemical vapor deposition (LPCVD). The microstructure and phase compositions of the as-prepared and ablated coatings were investigated, and the influence of the multi-layer structure on the ablation behavior and thermal stress distribution of the coatings were analyzed as well. After ablation for 120 s, the (SiC/HfC)₃ coating has better ablation resistance due to its multi-layer structure and the formation of Hf-Si-O sticky glass phase.

Original language	English
Article number	109586
Journal	Corrosion Science
Volume	189
DOIs	https://doi.org/10.1016/j.corsci.2021.109586
State	Published - 15 Aug 2021
Externally published	Yes

Keywords

Ablation resistance
C/C composites
LPCVD
Multi-layer alternating coating
SiC/HfC

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10.1016/j.corsci.2021.109586

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title = "Long-time ablation behavior of the multilayer alternating CVD-(SiC/HfC)3 coating for carbon/carbon composites",

abstract = "To improve the service life of carbon/carbon (C/C) composites under ultra-high temperature ablation environments (> 2200 ℃), SiC/HfC coating with multi-layer alternating structure was designed and prepared on C/C composites by low-pressure chemical vapor deposition (LPCVD). The microstructure and phase compositions of the as-prepared and ablated coatings were investigated, and the influence of the multi-layer structure on the ablation behavior and thermal stress distribution of the coatings were analyzed as well. After ablation for 120 s, the (SiC/HfC)3 coating has better ablation resistance due to its multi-layer structure and the formation of Hf-Si-O sticky glass phase.",

keywords = "Ablation resistance, C/C composites, LPCVD, Multi-layer alternating coating, SiC/HfC",

author = "Jian Zhang and Yulei Zhang and Yanqin Fu and Xiaofei Zhu and Ruicong Chen",

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doi = "10.1016/j.corsci.2021.109586",

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T1 - Long-time ablation behavior of the multilayer alternating CVD-(SiC/HfC)3 coating for carbon/carbon composites

AU - Zhang, Jian

AU - Zhang, Yulei

AU - Fu, Yanqin

AU - Zhu, Xiaofei

AU - Chen, Ruicong

PY - 2021/8/15

Y1 - 2021/8/15

N2 - To improve the service life of carbon/carbon (C/C) composites under ultra-high temperature ablation environments (> 2200 ℃), SiC/HfC coating with multi-layer alternating structure was designed and prepared on C/C composites by low-pressure chemical vapor deposition (LPCVD). The microstructure and phase compositions of the as-prepared and ablated coatings were investigated, and the influence of the multi-layer structure on the ablation behavior and thermal stress distribution of the coatings were analyzed as well. After ablation for 120 s, the (SiC/HfC)3 coating has better ablation resistance due to its multi-layer structure and the formation of Hf-Si-O sticky glass phase.

AB - To improve the service life of carbon/carbon (C/C) composites under ultra-high temperature ablation environments (> 2200 ℃), SiC/HfC coating with multi-layer alternating structure was designed and prepared on C/C composites by low-pressure chemical vapor deposition (LPCVD). The microstructure and phase compositions of the as-prepared and ablated coatings were investigated, and the influence of the multi-layer structure on the ablation behavior and thermal stress distribution of the coatings were analyzed as well. After ablation for 120 s, the (SiC/HfC)3 coating has better ablation resistance due to its multi-layer structure and the formation of Hf-Si-O sticky glass phase.

KW - Ablation resistance

KW - C/C composites

KW - LPCVD

KW - Multi-layer alternating coating

KW - SiC/HfC

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DO - 10.1016/j.corsci.2021.109586

M3 - 文章

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VL - 189

JO - Corrosion Science

JF - Corrosion Science

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Long-time ablation behavior of the multilayer alternating CVD-(SiC/HfC)₃ coating for carbon/carbon composites

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Keywords

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