WSi2 modified HfB2-SiC coating: Microstructure and ablation resistance

Jiaping Zhang; Jiaqi Hou; Running Wang; Ruicong Chen; Xiaoxuan Su; Qiangang Fu; Hao Lv; Ziwei He; Zhijian Cui; Zitao Cong; Xiaonian Dai

doi:10.1016/j.jeurceramsoc.2023.07.070

WSi₂ modified HfB₂-SiC coating: Microstructure and ablation resistance

Jiaping Zhang
, Jiaqi Hou
, Running Wang
, Ruicong Chen
, Xiaoxuan Su
, Qiangang Fu
, Hao Lv
, Ziwei He
, Zhijian Cui
, Zitao Cong
, Xiaonian Dai

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

19 Scopus citations

Abstract

To enhance the ablation resistance of carbon/carbon composites, WSi₂ modified HfB₂-SiC coating was prepared by slurry dipping combined with vapor silicon infiltration. The effect of WSi₂ contents on the ablation performance of the coating was investigated. The results showed that the coating with 20 wt% WSi₂ had the best ablation resistance under oxyacetylene torch. During ablation, a dense Hf-Si-W-O oxide layer was covered on the coating surface, inhibiting the diffusion of oxygen. Additionally, WSi₂ with high emissivity and the formed W with good thermal conductivity played a role in reducing the ablation temperature. These effects contributed to the improvement of ablation performance.

Original language	English
Pages (from-to)	6746-6757
Number of pages	12
Journal	Journal of the European Ceramic Society
Volume	43
Issue number	15
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2023.07.070
State	Published - Dec 2023

Keywords

Ablation
Coating
Hf-Si-W-O compound phase
HfB-SiC
WSi

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10.1016/j.jeurceramsoc.2023.07.070

Cite this

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title = "WSi2 modified HfB2-SiC coating: Microstructure and ablation resistance",

abstract = "To enhance the ablation resistance of carbon/carbon composites, WSi2 modified HfB2-SiC coating was prepared by slurry dipping combined with vapor silicon infiltration. The effect of WSi2 contents on the ablation performance of the coating was investigated. The results showed that the coating with 20 wt\% WSi2 had the best ablation resistance under oxyacetylene torch. During ablation, a dense Hf-Si-W-O oxide layer was covered on the coating surface, inhibiting the diffusion of oxygen. Additionally, WSi2 with high emissivity and the formed W with good thermal conductivity played a role in reducing the ablation temperature. These effects contributed to the improvement of ablation performance.",

keywords = "Ablation, Coating, Hf-Si-W-O compound phase, HfB-SiC, WSi",

author = "Jiaping Zhang and Jiaqi Hou and Running Wang and Ruicong Chen and Xiaoxuan Su and Qiangang Fu and Hao Lv and Ziwei He and Zhijian Cui and Zitao Cong and Xiaonian Dai",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd",

year = "2023",

month = dec,

doi = "10.1016/j.jeurceramsoc.2023.07.070",

language = "英语",

volume = "43",

pages = "6746--6757",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier B.V.",

number = "15",

}

TY - JOUR

T1 - WSi2 modified HfB2-SiC coating

T2 - Microstructure and ablation resistance

AU - Zhang, Jiaping

AU - Hou, Jiaqi

AU - Wang, Running

AU - Chen, Ruicong

AU - Su, Xiaoxuan

AU - Fu, Qiangang

AU - Lv, Hao

AU - He, Ziwei

AU - Cui, Zhijian

AU - Cong, Zitao

AU - Dai, Xiaonian

PY - 2023/12

Y1 - 2023/12

N2 - To enhance the ablation resistance of carbon/carbon composites, WSi2 modified HfB2-SiC coating was prepared by slurry dipping combined with vapor silicon infiltration. The effect of WSi2 contents on the ablation performance of the coating was investigated. The results showed that the coating with 20 wt% WSi2 had the best ablation resistance under oxyacetylene torch. During ablation, a dense Hf-Si-W-O oxide layer was covered on the coating surface, inhibiting the diffusion of oxygen. Additionally, WSi2 with high emissivity and the formed W with good thermal conductivity played a role in reducing the ablation temperature. These effects contributed to the improvement of ablation performance.

AB - To enhance the ablation resistance of carbon/carbon composites, WSi2 modified HfB2-SiC coating was prepared by slurry dipping combined with vapor silicon infiltration. The effect of WSi2 contents on the ablation performance of the coating was investigated. The results showed that the coating with 20 wt% WSi2 had the best ablation resistance under oxyacetylene torch. During ablation, a dense Hf-Si-W-O oxide layer was covered on the coating surface, inhibiting the diffusion of oxygen. Additionally, WSi2 with high emissivity and the formed W with good thermal conductivity played a role in reducing the ablation temperature. These effects contributed to the improvement of ablation performance.

KW - Ablation

KW - Coating

KW - Hf-Si-W-O compound phase

KW - HfB-SiC

KW - WSi

UR - https://www.scopus.com/pages/publications/85166279347

U2 - 10.1016/j.jeurceramsoc.2023.07.070

DO - 10.1016/j.jeurceramsoc.2023.07.070

M3 - 文章

AN - SCOPUS:85166279347

SN - 0955-2219

VL - 43

SP - 6746

EP - 6757

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 15

ER -

WSi₂ modified HfB₂-SiC coating: Microstructure and ablation resistance

Abstract

Keywords

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