SiC Nanowires Toughed HfC Ablative Coating for C/C Composites

Hejun Li; Yongjie Wang; Qiangang Fu; Yanhui Chu

doi:10.1016/j.jmst.2014.03.024

SiC Nanowires Toughed HfC Ablative Coating for C/C Composites

Hejun Li, Yongjie Wang, Qiangang Fu, Yanhui Chu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

43 Scopus citations

Abstract

In order to improve ablation resistance of carbon/carbon (C/C) composites, SiC nanowires were prepared on C/C composites surface in prior through chemical vapor reaction before HfC coating. SiC nanowires grew randomly and had good combination with HfC coating. SiC nanowires toughed HfC coating had lower linear and mass ablation rates than original HfC coating. The surface was much flatter and exhibited smaller cracks in center region. The ablation mechanism of HfC coating has been changed by SiC nanowires. Thicker HfO₂ fused layer was formed on the surface of the toughed HfC coating, which could provide efficient protection for C/C composites. Therefore, SiC nanowires toughed HfC coating behaved in better ablation resistance.

Original language	English
Pages (from-to)	70-76
Number of pages	7
Journal	Journal of Materials Science and Technology
Volume	31
Issue number	1
DOIs	https://doi.org/10.1016/j.jmst.2014.03.024
State	Published - 2015

Keywords

Ablation performance
Carbide
Carbon/carbon composites
Ceramic coating
Chemical vapor deposition
Corrosion resistance
Nanowires

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10.1016/j.jmst.2014.03.024

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title = "SiC Nanowires Toughed HfC Ablative Coating for C/C Composites",

abstract = "In order to improve ablation resistance of carbon/carbon (C/C) composites, SiC nanowires were prepared on C/C composites surface in prior through chemical vapor reaction before HfC coating. SiC nanowires grew randomly and had good combination with HfC coating. SiC nanowires toughed HfC coating had lower linear and mass ablation rates than original HfC coating. The surface was much flatter and exhibited smaller cracks in center region. The ablation mechanism of HfC coating has been changed by SiC nanowires. Thicker HfO2 fused layer was formed on the surface of the toughed HfC coating, which could provide efficient protection for C/C composites. Therefore, SiC nanowires toughed HfC coating behaved in better ablation resistance.",

keywords = "Ablation performance, Carbide, Carbon/carbon composites, Ceramic coating, Chemical vapor deposition, Corrosion resistance, Nanowires",

author = "Hejun Li and Yongjie Wang and Qiangang Fu and Yanhui Chu",

note = "Publisher Copyright: {\textcopyright} 2014.",

year = "2015",

doi = "10.1016/j.jmst.2014.03.024",

language = "英语",

volume = "31",

pages = "70--76",

journal = "Journal of Materials Science and Technology",

issn = "1005-0302",

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TY - JOUR

T1 - SiC Nanowires Toughed HfC Ablative Coating for C/C Composites

AU - Li, Hejun

AU - Wang, Yongjie

AU - Fu, Qiangang

AU - Chu, Yanhui

PY - 2015

Y1 - 2015

N2 - In order to improve ablation resistance of carbon/carbon (C/C) composites, SiC nanowires were prepared on C/C composites surface in prior through chemical vapor reaction before HfC coating. SiC nanowires grew randomly and had good combination with HfC coating. SiC nanowires toughed HfC coating had lower linear and mass ablation rates than original HfC coating. The surface was much flatter and exhibited smaller cracks in center region. The ablation mechanism of HfC coating has been changed by SiC nanowires. Thicker HfO2 fused layer was formed on the surface of the toughed HfC coating, which could provide efficient protection for C/C composites. Therefore, SiC nanowires toughed HfC coating behaved in better ablation resistance.

AB - In order to improve ablation resistance of carbon/carbon (C/C) composites, SiC nanowires were prepared on C/C composites surface in prior through chemical vapor reaction before HfC coating. SiC nanowires grew randomly and had good combination with HfC coating. SiC nanowires toughed HfC coating had lower linear and mass ablation rates than original HfC coating. The surface was much flatter and exhibited smaller cracks in center region. The ablation mechanism of HfC coating has been changed by SiC nanowires. Thicker HfO2 fused layer was formed on the surface of the toughed HfC coating, which could provide efficient protection for C/C composites. Therefore, SiC nanowires toughed HfC coating behaved in better ablation resistance.

KW - Ablation performance

KW - Carbide

KW - Carbon/carbon composites

KW - Ceramic coating

KW - Chemical vapor deposition

KW - Corrosion resistance

KW - Nanowires

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U2 - 10.1016/j.jmst.2014.03.024

DO - 10.1016/j.jmst.2014.03.024

M3 - 文章

AN - SCOPUS:84922276077

SN - 1005-0302

VL - 31

SP - 70

EP - 76

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

IS - 1

ER -

SiC Nanowires Toughed HfC Ablative Coating for C/C Composites

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