MoSi2 modified HfC coating for the ablation protection of SiC-coated C/C composites: Ablation resistance and behavior

Ruicong Chen; Yulei Zhang; Jian Zhang; Xiaofei Zhu

doi:10.1016/j.corsci.2022.110418

MoSi₂ modified HfC coating for the ablation protection of SiC-coated C/C composites: Ablation resistance and behavior

Ruicong Chen
, Yulei Zhang
, Jian Zhang
, Xiaofei Zhu

Northwestern Polytechnical University Xian

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

49 Scopus citations

Abstract

To improve the ablation resistance of HfC coating, HfC-MoSi₂ coatings with different MoSi₂ content were prepared on SiC-coated carbon/carbon (C/C) composites by supersonic atmospheric plasma spraying (SAPS). The effects of MoSi₂ content on the microstructure, phase composition and ablation behavior of HfC-MoSi₂ coating were investigated. The ablation resistance of as-prepared coatings was tested under the oxyacetylene flame with a heat flux of 2.4 MW/m². The results showed that the HfC-(25 vol%) MoSi₂ coating exhibited better ablation resistance, and its mass and linear ablation rate are 0.23 mg/s and 0.48 µm/s, respectively. Such good performance was ascribed to the formation of Hf-Si-O compound phases, which effectively filled the diffusion channel of oxygen and improved the compactness of the coating.

Original language	English
Article number	110418
Journal	Corrosion Science
Volume	205
DOIs	https://doi.org/10.1016/j.corsci.2022.110418
State	Published - 15 Aug 2022
Externally published	Yes

Keywords

Ablation resistance
Carbon/carbon composites
Hf-Si-O
HfC-MoSi coatings
SAPS

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10.1016/j.corsci.2022.110418

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@article{8a632ae2e32c44ed9c43187323ec447d,

title = "MoSi2 modified HfC coating for the ablation protection of SiC-coated C/C composites: Ablation resistance and behavior",

abstract = "To improve the ablation resistance of HfC coating, HfC-MoSi2 coatings with different MoSi2 content were prepared on SiC-coated carbon/carbon (C/C) composites by supersonic atmospheric plasma spraying (SAPS). The effects of MoSi2 content on the microstructure, phase composition and ablation behavior of HfC-MoSi2 coating were investigated. The ablation resistance of as-prepared coatings was tested under the oxyacetylene flame with a heat flux of 2.4 MW/m2. The results showed that the HfC-(25 vol\%) MoSi2 coating exhibited better ablation resistance, and its mass and linear ablation rate are 0.23 mg/s and 0.48 µm/s, respectively. Such good performance was ascribed to the formation of Hf-Si-O compound phases, which effectively filled the diffusion channel of oxygen and improved the compactness of the coating.",

keywords = "Ablation resistance, Carbon/carbon composites, Hf-Si-O, HfC-MoSi coatings, SAPS",

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

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = aug,

day = "15",

doi = "10.1016/j.corsci.2022.110418",

language = "英语",

volume = "205",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - MoSi2 modified HfC coating for the ablation protection of SiC-coated C/C composites

T2 - Ablation resistance and behavior

AU - Chen, Ruicong

AU - Zhang, Yulei

AU - Zhang, Jian

AU - Zhu, Xiaofei

PY - 2022/8/15

Y1 - 2022/8/15

N2 - To improve the ablation resistance of HfC coating, HfC-MoSi2 coatings with different MoSi2 content were prepared on SiC-coated carbon/carbon (C/C) composites by supersonic atmospheric plasma spraying (SAPS). The effects of MoSi2 content on the microstructure, phase composition and ablation behavior of HfC-MoSi2 coating were investigated. The ablation resistance of as-prepared coatings was tested under the oxyacetylene flame with a heat flux of 2.4 MW/m2. The results showed that the HfC-(25 vol%) MoSi2 coating exhibited better ablation resistance, and its mass and linear ablation rate are 0.23 mg/s and 0.48 µm/s, respectively. Such good performance was ascribed to the formation of Hf-Si-O compound phases, which effectively filled the diffusion channel of oxygen and improved the compactness of the coating.

AB - To improve the ablation resistance of HfC coating, HfC-MoSi2 coatings with different MoSi2 content were prepared on SiC-coated carbon/carbon (C/C) composites by supersonic atmospheric plasma spraying (SAPS). The effects of MoSi2 content on the microstructure, phase composition and ablation behavior of HfC-MoSi2 coating were investigated. The ablation resistance of as-prepared coatings was tested under the oxyacetylene flame with a heat flux of 2.4 MW/m2. The results showed that the HfC-(25 vol%) MoSi2 coating exhibited better ablation resistance, and its mass and linear ablation rate are 0.23 mg/s and 0.48 µm/s, respectively. Such good performance was ascribed to the formation of Hf-Si-O compound phases, which effectively filled the diffusion channel of oxygen and improved the compactness of the coating.

KW - Ablation resistance

KW - Carbon/carbon composites

KW - Hf-Si-O

KW - HfC-MoSi coatings

KW - SAPS

UR - https://www.scopus.com/pages/publications/85131544295

U2 - 10.1016/j.corsci.2022.110418

DO - 10.1016/j.corsci.2022.110418

M3 - 文章

AN - SCOPUS:85131544295

SN - 0010-938X

VL - 205

JO - Corrosion Science

JF - Corrosion Science

M1 - 110418

ER -

MoSi₂ modified HfC coating for the ablation protection of SiC-coated C/C composites: Ablation resistance and behavior

Abstract

Keywords

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