MoSi2-HfC/TaC-HfC multi-phase coatings synthesized by supersonic atmospheric plasma spraying for C/C composites against ablation

Kang Shuai; Yulei Zhang; Yanqin Fu; Xiaotong Guo; Tao Li; Jie Li

doi:10.1016/j.corsci.2021.109884

MoSi₂-HfC/TaC-HfC multi-phase coatings synthesized by supersonic atmospheric plasma spraying for C/C composites against ablation

Kang Shuai, Yulei Zhang, Yanqin Fu, Xiaotong Guo, Tao Li, Jie Li

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

28 Scopus citations

Abstract

To improve the ablation resistance of C/C composites, MoSi₂-HfC/TaC-HfC (MH/TH) bilayer coatings were synthesized on SiC coated C/C composites. Results showed that the mass and linear ablation rate of MH/TH coatings were 0.236 mg/s and 1.026 µm/s, respectively. The excellent performance of MH/TH coatings was attributed to the combination of TH and MH layers. The external TH layer could create Ta₂O₅ and Hf₆Ta₂O₁₇ glassy phase to protect the internal layer and prevent the formation of destructive MoO₃. Meanwhile, the decomposition of the internal MH layer to produce SiO₂ diffusion outward could retard the destruction of the external coating.

Original language	English
Article number	109884
Journal	Corrosion Science
Volume	193
DOIs	https://doi.org/10.1016/j.corsci.2021.109884
State	Published - Dec 2021

Keywords

Ablation resistance
MoSi-HfC/TaC-HfC coatings
Supersonic atmospheric plasma spraying
Ultra-high temperature ceramics

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10.1016/j.corsci.2021.109884

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title = "MoSi2-HfC/TaC-HfC multi-phase coatings synthesized by supersonic atmospheric plasma spraying for C/C composites against ablation",

abstract = "To improve the ablation resistance of C/C composites, MoSi2-HfC/TaC-HfC (MH/TH) bilayer coatings were synthesized on SiC coated C/C composites. Results showed that the mass and linear ablation rate of MH/TH coatings were 0.236 mg/s and 1.026 µm/s, respectively. The excellent performance of MH/TH coatings was attributed to the combination of TH and MH layers. The external TH layer could create Ta2O5 and Hf6Ta2O17 glassy phase to protect the internal layer and prevent the formation of destructive MoO3. Meanwhile, the decomposition of the internal MH layer to produce SiO2 diffusion outward could retard the destruction of the external coating.",

keywords = "Ablation resistance, MoSi-HfC/TaC-HfC coatings, Supersonic atmospheric plasma spraying, Ultra-high temperature ceramics",

author = "Kang Shuai and Yulei Zhang and Yanqin Fu and Xiaotong Guo and Tao Li and Jie Li",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

month = dec,

doi = "10.1016/j.corsci.2021.109884",

language = "英语",

volume = "193",

journal = "Corrosion Science",

issn = "0010-938X",

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TY - JOUR

T1 - MoSi2-HfC/TaC-HfC multi-phase coatings synthesized by supersonic atmospheric plasma spraying for C/C composites against ablation

AU - Shuai, Kang

AU - Zhang, Yulei

AU - Fu, Yanqin

AU - Guo, Xiaotong

AU - Li, Tao

AU - Li, Jie

PY - 2021/12

Y1 - 2021/12

N2 - To improve the ablation resistance of C/C composites, MoSi2-HfC/TaC-HfC (MH/TH) bilayer coatings were synthesized on SiC coated C/C composites. Results showed that the mass and linear ablation rate of MH/TH coatings were 0.236 mg/s and 1.026 µm/s, respectively. The excellent performance of MH/TH coatings was attributed to the combination of TH and MH layers. The external TH layer could create Ta2O5 and Hf6Ta2O17 glassy phase to protect the internal layer and prevent the formation of destructive MoO3. Meanwhile, the decomposition of the internal MH layer to produce SiO2 diffusion outward could retard the destruction of the external coating.

AB - To improve the ablation resistance of C/C composites, MoSi2-HfC/TaC-HfC (MH/TH) bilayer coatings were synthesized on SiC coated C/C composites. Results showed that the mass and linear ablation rate of MH/TH coatings were 0.236 mg/s and 1.026 µm/s, respectively. The excellent performance of MH/TH coatings was attributed to the combination of TH and MH layers. The external TH layer could create Ta2O5 and Hf6Ta2O17 glassy phase to protect the internal layer and prevent the formation of destructive MoO3. Meanwhile, the decomposition of the internal MH layer to produce SiO2 diffusion outward could retard the destruction of the external coating.

KW - Ablation resistance

KW - MoSi-HfC/TaC-HfC coatings

KW - Supersonic atmospheric plasma spraying

KW - Ultra-high temperature ceramics

UR - http://www.scopus.com/inward/record.url?scp=85119960840&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2021.109884

DO - 10.1016/j.corsci.2021.109884

M3 - 文章

AN - SCOPUS:85119960840

SN - 0010-938X

VL - 193

JO - Corrosion Science

JF - Corrosion Science

M1 - 109884

ER -

MoSi₂-HfC/TaC-HfC multi-phase coatings synthesized by supersonic atmospheric plasma spraying for C/C composites against ablation

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Keywords

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