Effect of microstructure on the ablation behavior and mechanical properties of CVD-HfC coating

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

doi:10.1016/j.corsci.2021.109815

Effect of microstructure on the ablation behavior and mechanical properties of CVD-HfC coating

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

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

29 Scopus citations

Abstract

HfC coatings with different microstructure were successfully fabricated by chemical vapor deposition. The mechanical properties and ablation resistance of HfC coatings were evaluated, and the coefficient of thermal expansion (CTE) and ablation behavior of the as-prepared coatings were investigated in detail. Results showed that HfC coating with the dense coarse columnar structure exhibits good mechanical properties, and the equiaxed structure has a low CTE. The fine columnar structure coating has better ablation resistance compared with other microstructures, and the mass ablation rate and linear rate are only 2.02 mg/s and 1.25 µm/s after ablation for 90 s, respectively.

Original language	English
Article number	109815
Journal	Corrosion Science
Volume	192
DOIs	https://doi.org/10.1016/j.corsci.2021.109815
State	Published - Nov 2021

Keywords

Ablation resistance
HfC coatings
Mechanical properties
Microstructure

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10.1016/j.corsci.2021.109815

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title = "Effect of microstructure on the ablation behavior and mechanical properties of CVD-HfC coating",

abstract = "HfC coatings with different microstructure were successfully fabricated by chemical vapor deposition. The mechanical properties and ablation resistance of HfC coatings were evaluated, and the coefficient of thermal expansion (CTE) and ablation behavior of the as-prepared coatings were investigated in detail. Results showed that HfC coating with the dense coarse columnar structure exhibits good mechanical properties, and the equiaxed structure has a low CTE. The fine columnar structure coating has better ablation resistance compared with other microstructures, and the mass ablation rate and linear rate are only 2.02 mg/s and 1.25 µm/s after ablation for 90 s, respectively.",

keywords = "Ablation resistance, HfC coatings, Mechanical properties, Microstructure",

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

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

year = "2021",

month = nov,

doi = "10.1016/j.corsci.2021.109815",

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T1 - Effect of microstructure on the ablation behavior and mechanical properties of CVD-HfC coating

AU - Zhang, Jian

AU - Zhang, Yulei

AU - Chen, Ruicong

AU - Zhu, Xiaofei

AU - Fu, Yanqin

PY - 2021/11

Y1 - 2021/11

N2 - HfC coatings with different microstructure were successfully fabricated by chemical vapor deposition. The mechanical properties and ablation resistance of HfC coatings were evaluated, and the coefficient of thermal expansion (CTE) and ablation behavior of the as-prepared coatings were investigated in detail. Results showed that HfC coating with the dense coarse columnar structure exhibits good mechanical properties, and the equiaxed structure has a low CTE. The fine columnar structure coating has better ablation resistance compared with other microstructures, and the mass ablation rate and linear rate are only 2.02 mg/s and 1.25 µm/s after ablation for 90 s, respectively.

AB - HfC coatings with different microstructure were successfully fabricated by chemical vapor deposition. The mechanical properties and ablation resistance of HfC coatings were evaluated, and the coefficient of thermal expansion (CTE) and ablation behavior of the as-prepared coatings were investigated in detail. Results showed that HfC coating with the dense coarse columnar structure exhibits good mechanical properties, and the equiaxed structure has a low CTE. The fine columnar structure coating has better ablation resistance compared with other microstructures, and the mass ablation rate and linear rate are only 2.02 mg/s and 1.25 µm/s after ablation for 90 s, respectively.

KW - Ablation resistance

KW - HfC coatings

KW - Mechanical properties

KW - Microstructure

UR - http://www.scopus.com/inward/record.url?scp=85114671974&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2021.109815

DO - 10.1016/j.corsci.2021.109815

M3 - 文章

AN - SCOPUS:85114671974

SN - 0010-938X

VL - 192

JO - Corrosion Science

JF - Corrosion Science

M1 - 109815

ER -

Effect of microstructure on the ablation behavior and mechanical properties of CVD-HfC coating

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Keywords

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