Growth mechanism and ablation behavior of CVD-HfC coating on the surface of C/C composites and CVD-SiC coating

Jian Zhang; Yulei Zhang; Yanqin Fu; Yutai Zhang; Xiaofei Zhu

doi:10.1016/j.corsci.2021.109819

Growth mechanism and ablation behavior of CVD-HfC coating on the surface of C/C composites and CVD-SiC coating

Jian Zhang, Yulei Zhang, Yanqin Fu, Yutai Zhang, Xiaofei Zhu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

39 Scopus citations

Abstract

HfC coatings were deposited on the surface of carbon/carbon (C/C) composites and CVD-SiC coating by low-pressure chemical vapor deposition (CVD), respectively. The effects of two substrates on the microstructure, phase composition and preferred orientation of HfC coatings were investigated in detail. Results showed that HfC coatings deposited on two substrates inherit their own substrate surface characteristics. After ablation for 90 s, the HfC coating prepared on CVD-SiC coating has better ablation resistance under oxyacetylene flame with heat flux of 2.4 MW/m², because the transition layer can effectively relieve the damage caused by thermal stress.

Original language	English
Article number	109819
Journal	Corrosion Science
Volume	192
DOIs	https://doi.org/10.1016/j.corsci.2021.109819
State	Published - Nov 2021

Keywords

Ablation resistance
C/C composites
Chemical vapor deposition
CVD-SiC
HfC coating

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10.1016/j.corsci.2021.109819

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title = "Growth mechanism and ablation behavior of CVD-HfC coating on the surface of C/C composites and CVD-SiC coating",

abstract = "HfC coatings were deposited on the surface of carbon/carbon (C/C) composites and CVD-SiC coating by low-pressure chemical vapor deposition (CVD), respectively. The effects of two substrates on the microstructure, phase composition and preferred orientation of HfC coatings were investigated in detail. Results showed that HfC coatings deposited on two substrates inherit their own substrate surface characteristics. After ablation for 90 s, the HfC coating prepared on CVD-SiC coating has better ablation resistance under oxyacetylene flame with heat flux of 2.4 MW/m2, because the transition layer can effectively relieve the damage caused by thermal stress.",

keywords = "Ablation resistance, C/C composites, Chemical vapor deposition, CVD-SiC, HfC coating",

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year = "2021",

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T1 - Growth mechanism and ablation behavior of CVD-HfC coating on the surface of C/C composites and CVD-SiC coating

AU - Zhang, Jian

AU - Zhang, Yulei

AU - Fu, Yanqin

AU - Zhang, Yutai

AU - Zhu, Xiaofei

PY - 2021/11

Y1 - 2021/11

N2 - HfC coatings were deposited on the surface of carbon/carbon (C/C) composites and CVD-SiC coating by low-pressure chemical vapor deposition (CVD), respectively. The effects of two substrates on the microstructure, phase composition and preferred orientation of HfC coatings were investigated in detail. Results showed that HfC coatings deposited on two substrates inherit their own substrate surface characteristics. After ablation for 90 s, the HfC coating prepared on CVD-SiC coating has better ablation resistance under oxyacetylene flame with heat flux of 2.4 MW/m2, because the transition layer can effectively relieve the damage caused by thermal stress.

AB - HfC coatings were deposited on the surface of carbon/carbon (C/C) composites and CVD-SiC coating by low-pressure chemical vapor deposition (CVD), respectively. The effects of two substrates on the microstructure, phase composition and preferred orientation of HfC coatings were investigated in detail. Results showed that HfC coatings deposited on two substrates inherit their own substrate surface characteristics. After ablation for 90 s, the HfC coating prepared on CVD-SiC coating has better ablation resistance under oxyacetylene flame with heat flux of 2.4 MW/m2, because the transition layer can effectively relieve the damage caused by thermal stress.

KW - Ablation resistance

KW - C/C composites

KW - Chemical vapor deposition

KW - CVD-SiC

KW - HfC coating

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U2 - 10.1016/j.corsci.2021.109819

DO - 10.1016/j.corsci.2021.109819

M3 - 文章

AN - SCOPUS:85114910922

SN - 0010-938X

VL - 192

JO - Corrosion Science

JF - Corrosion Science

M1 - 109819

ER -

Growth mechanism and ablation behavior of CVD-HfC coating on the surface of C/C composites and CVD-SiC coating

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Keywords

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