Influence of HfC nanowires on the growth behavior, microstructure and ablation resistance of CVD-HfC coating

Jincui Ren; Yulei Zhang; Yanqin Fu; Jian Zhang

doi:10.1016/j.ceramint.2018.11.230

Influence of HfC nanowires on the growth behavior, microstructure and ablation resistance of CVD-HfC coating

Jincui Ren, Yulei Zhang, Yanqin Fu, Jian Zhang

School of Materials Sience and Engineering

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

34 Scopus citations

Abstract

HfC nanowire-toughened HfC ablation resistant coating was prepared on carbon/carbon composites by two steps of chemical vapor deposition. Effects of HfC nanowires on the growth behavior, microstructure and ablation resistance of the HfC coating were researched. Due to the incorporation of HfC nanowires, the deposition rate of the HfC coating was improved, the HfC coating was composed of particle-stacked crystals. After incorporating HfC nanowires, the bonding strength and fracture toughness of the HfC coating increased. HfC nanowires could restrain the crack propagation of HfC coating during ablation, contributing to improving the ablation resistance of HfC coating. After ablation for 60 s, the mass ablation rate of the HfC-coated C/C sample reduced from 0.44 to 0.26 mg/s because of the incorporation of HfC nanowires.

Original language	English
Pages (from-to)	5321-5331
Number of pages	11
Journal	Ceramics International
Volume	45
Issue number	5
DOIs	https://doi.org/10.1016/j.ceramint.2018.11.230
State	Published - 1 Apr 2019

Keywords

Ablation resistance
CVD
Growth behavior
HfC coating
HfC nanowire

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10.1016/j.ceramint.2018.11.230

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title = "Influence of HfC nanowires on the growth behavior, microstructure and ablation resistance of CVD-HfC coating",

abstract = "HfC nanowire-toughened HfC ablation resistant coating was prepared on carbon/carbon composites by two steps of chemical vapor deposition. Effects of HfC nanowires on the growth behavior, microstructure and ablation resistance of the HfC coating were researched. Due to the incorporation of HfC nanowires, the deposition rate of the HfC coating was improved, the HfC coating was composed of particle-stacked crystals. After incorporating HfC nanowires, the bonding strength and fracture toughness of the HfC coating increased. HfC nanowires could restrain the crack propagation of HfC coating during ablation, contributing to improving the ablation resistance of HfC coating. After ablation for 60 s, the mass ablation rate of the HfC-coated C/C sample reduced from 0.44 to 0.26 mg/s because of the incorporation of HfC nanowires.",

keywords = "Ablation resistance, CVD, Growth behavior, HfC coating, HfC nanowire",

author = "Jincui Ren and Yulei Zhang and Yanqin Fu and Jian Zhang",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd and Techna Group S.r.l.",

year = "2019",

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doi = "10.1016/j.ceramint.2018.11.230",

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TY - JOUR

T1 - Influence of HfC nanowires on the growth behavior, microstructure and ablation resistance of CVD-HfC coating

AU - Ren, Jincui

AU - Zhang, Yulei

AU - Fu, Yanqin

AU - Zhang, Jian

PY - 2019/4/1

Y1 - 2019/4/1

N2 - HfC nanowire-toughened HfC ablation resistant coating was prepared on carbon/carbon composites by two steps of chemical vapor deposition. Effects of HfC nanowires on the growth behavior, microstructure and ablation resistance of the HfC coating were researched. Due to the incorporation of HfC nanowires, the deposition rate of the HfC coating was improved, the HfC coating was composed of particle-stacked crystals. After incorporating HfC nanowires, the bonding strength and fracture toughness of the HfC coating increased. HfC nanowires could restrain the crack propagation of HfC coating during ablation, contributing to improving the ablation resistance of HfC coating. After ablation for 60 s, the mass ablation rate of the HfC-coated C/C sample reduced from 0.44 to 0.26 mg/s because of the incorporation of HfC nanowires.

AB - HfC nanowire-toughened HfC ablation resistant coating was prepared on carbon/carbon composites by two steps of chemical vapor deposition. Effects of HfC nanowires on the growth behavior, microstructure and ablation resistance of the HfC coating were researched. Due to the incorporation of HfC nanowires, the deposition rate of the HfC coating was improved, the HfC coating was composed of particle-stacked crystals. After incorporating HfC nanowires, the bonding strength and fracture toughness of the HfC coating increased. HfC nanowires could restrain the crack propagation of HfC coating during ablation, contributing to improving the ablation resistance of HfC coating. After ablation for 60 s, the mass ablation rate of the HfC-coated C/C sample reduced from 0.44 to 0.26 mg/s because of the incorporation of HfC nanowires.

KW - Ablation resistance

KW - CVD

KW - Growth behavior

KW - HfC coating

KW - HfC nanowire

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U2 - 10.1016/j.ceramint.2018.11.230

DO - 10.1016/j.ceramint.2018.11.230

M3 - 文章

AN - SCOPUS:85057625884

SN - 0272-8842

VL - 45

SP - 5321

EP - 5331

JO - Ceramics International

JF - Ceramics International

IS - 5

ER -

Influence of HfC nanowires on the growth behavior, microstructure and ablation resistance of CVD-HfC coating

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Keywords

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