Mechanical properties and ablation resistance of HfC nanowire modified carbon/carbon composites

Yanqin Fu; Yulei Zhang; Jian Zhang; Tao Li; Guohui Chen

doi:10.1016/j.ceramint.2020.03.168

Mechanical properties and ablation resistance of HfC nanowire modified carbon/carbon composites

Yanqin Fu, Yulei Zhang, Jian Zhang, Tao Li, Guohui Chen

Northwestern Polytechnical University Xian

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

22 Scopus citations

Abstract

Hafnium carbide nanowires (HfCnws) were in-situ grown in carbon/carbon (C/C) composites, and subsquently the preforms were densified by isothermal chemical vapor infiltration to obtain HfCnws modified carbon/carbon (HfCnws-C/C) composites. Morphology and microstructure of HfCnws were examined, and the effect of HfCnws on the mechanical property and ablation resistance of C/C composites were also investigated. Results show that introducing HfCnws refined the grain size of pyrolytic carbon (PyC). The out-of-plane compression, interlaminar shear and flexual strength of HfCnws-C/C composites increased by 120.80%, 45.60% and 94.65%, respectively compared with pure C/C, and the HfCnws-C/C shows good ablation resistance under oxy-acetylene flame ablation.

Original language	English
Pages (from-to)	16142-16150
Number of pages	9
Journal	Ceramics International
Volume	46
Issue number	10
DOIs	https://doi.org/10.1016/j.ceramint.2020.03.168
State	Published - Jul 2020
Externally published	Yes

Keywords

Ablation resistance
Carbon/carbon composites
HfC nanowires
HfCnws-C/C composites
Mechanical properties

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title = "Mechanical properties and ablation resistance of HfC nanowire modified carbon/carbon composites",

abstract = "Hafnium carbide nanowires (HfCnws) were in-situ grown in carbon/carbon (C/C) composites, and subsquently the preforms were densified by isothermal chemical vapor infiltration to obtain HfCnws modified carbon/carbon (HfCnws-C/C) composites. Morphology and microstructure of HfCnws were examined, and the effect of HfCnws on the mechanical property and ablation resistance of C/C composites were also investigated. Results show that introducing HfCnws refined the grain size of pyrolytic carbon (PyC). The out-of-plane compression, interlaminar shear and flexual strength of HfCnws-C/C composites increased by 120.80%, 45.60% and 94.65%, respectively compared with pure C/C, and the HfCnws-C/C shows good ablation resistance under oxy-acetylene flame ablation.",

keywords = "Ablation resistance, Carbon/carbon composites, HfC nanowires, HfCnws-C/C composites, Mechanical properties",

author = "Yanqin Fu and Yulei Zhang and Jian Zhang and Tao Li and Guohui Chen",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd and Techna Group S.r.l.",

year = "2020",

month = jul,

doi = "10.1016/j.ceramint.2020.03.168",

language = "英语",

volume = "46",

pages = "16142--16150",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd",

number = "10",

}

TY - JOUR

T1 - Mechanical properties and ablation resistance of HfC nanowire modified carbon/carbon composites

AU - Fu, Yanqin

AU - Zhang, Yulei

AU - Zhang, Jian

AU - Li, Tao

AU - Chen, Guohui

PY - 2020/7

Y1 - 2020/7

N2 - Hafnium carbide nanowires (HfCnws) were in-situ grown in carbon/carbon (C/C) composites, and subsquently the preforms were densified by isothermal chemical vapor infiltration to obtain HfCnws modified carbon/carbon (HfCnws-C/C) composites. Morphology and microstructure of HfCnws were examined, and the effect of HfCnws on the mechanical property and ablation resistance of C/C composites were also investigated. Results show that introducing HfCnws refined the grain size of pyrolytic carbon (PyC). The out-of-plane compression, interlaminar shear and flexual strength of HfCnws-C/C composites increased by 120.80%, 45.60% and 94.65%, respectively compared with pure C/C, and the HfCnws-C/C shows good ablation resistance under oxy-acetylene flame ablation.

AB - Hafnium carbide nanowires (HfCnws) were in-situ grown in carbon/carbon (C/C) composites, and subsquently the preforms were densified by isothermal chemical vapor infiltration to obtain HfCnws modified carbon/carbon (HfCnws-C/C) composites. Morphology and microstructure of HfCnws were examined, and the effect of HfCnws on the mechanical property and ablation resistance of C/C composites were also investigated. Results show that introducing HfCnws refined the grain size of pyrolytic carbon (PyC). The out-of-plane compression, interlaminar shear and flexual strength of HfCnws-C/C composites increased by 120.80%, 45.60% and 94.65%, respectively compared with pure C/C, and the HfCnws-C/C shows good ablation resistance under oxy-acetylene flame ablation.

KW - Ablation resistance

KW - Carbon/carbon composites

KW - HfC nanowires

KW - HfCnws-C/C composites

KW - Mechanical properties

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U2 - 10.1016/j.ceramint.2020.03.168

DO - 10.1016/j.ceramint.2020.03.168

M3 - 文章

AN - SCOPUS:85081960875

SN - 0272-8842

VL - 46

SP - 16142

EP - 16150

JO - Ceramics International

JF - Ceramics International

IS - 10

ER -

Mechanical properties and ablation resistance of HfC nanowire modified carbon/carbon composites

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Keywords

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