HfC nanowires to improve the toughness and oxidation resistance of Si-Mo-Cr/SiC coating for C/C composites

Jincui Ren; Yulei Zhang; Heng Hu; Pengfei Zhang; Tian Fei; Leilei Zhang

doi:10.1016/j.ceramint.2016.06.064

HfC nanowires to improve the toughness and oxidation resistance of Si-Mo-Cr/SiC coating for C/C composites

Jincui Ren, Yulei Zhang, Heng Hu, Pengfei Zhang, Tian Fei, Leilei Zhang

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

45 Scopus citations

Abstract

To improve the oxidation resistance of carbon/carbon (C/C) composites, a dense HfC nanowire-toughened Si-Mo-Cr/SiC multilayer coating was prepared by chemical vapor deposition (CVD) and pack cementation. The microstructure, thermal shock and isothermal oxidation resistance of the coating were investigated. HfC nanowires could improve the toughness of the coating and suppress the coating cracking. After incorporating HfC nanowires in the coating, both of the thermal shock and isothermal oxidation resistance of the coating were obviously improved. The multilayer coating with HfC nanowires could effectively protect C/C composites at 1773 K for 270 h, whose weight loss is only 0.19%. The good oxidation resistance is mainly attributed to the formation of a compound glass layer containing SiO₂ and Cr₂O₃.

Original language	English
Pages (from-to)	14518-14525
Number of pages	8
Journal	Ceramics International
Volume	42
Issue number	13
DOIs	https://doi.org/10.1016/j.ceramint.2016.06.064
State	Published - Oct 2016

Keywords

Cabon/carbon composites
Coating
Hfc nanowires
Oxidation resistance

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10.1016/j.ceramint.2016.06.064

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title = "HfC nanowires to improve the toughness and oxidation resistance of Si-Mo-Cr/SiC coating for C/C composites",

abstract = "To improve the oxidation resistance of carbon/carbon (C/C) composites, a dense HfC nanowire-toughened Si-Mo-Cr/SiC multilayer coating was prepared by chemical vapor deposition (CVD) and pack cementation. The microstructure, thermal shock and isothermal oxidation resistance of the coating were investigated. HfC nanowires could improve the toughness of the coating and suppress the coating cracking. After incorporating HfC nanowires in the coating, both of the thermal shock and isothermal oxidation resistance of the coating were obviously improved. The multilayer coating with HfC nanowires could effectively protect C/C composites at 1773 K for 270 h, whose weight loss is only 0.19%. The good oxidation resistance is mainly attributed to the formation of a compound glass layer containing SiO2 and Cr2O3.",

keywords = "Cabon/carbon composites, Coating, Hfc nanowires, Oxidation resistance",

author = "Jincui Ren and Yulei Zhang and Heng Hu and Pengfei Zhang and Tian Fei and Leilei Zhang",

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year = "2016",

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doi = "10.1016/j.ceramint.2016.06.064",

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TY - JOUR

T1 - HfC nanowires to improve the toughness and oxidation resistance of Si-Mo-Cr/SiC coating for C/C composites

AU - Ren, Jincui

AU - Zhang, Yulei

AU - Hu, Heng

AU - Zhang, Pengfei

AU - Fei, Tian

AU - Zhang, Leilei

PY - 2016/10

Y1 - 2016/10

N2 - To improve the oxidation resistance of carbon/carbon (C/C) composites, a dense HfC nanowire-toughened Si-Mo-Cr/SiC multilayer coating was prepared by chemical vapor deposition (CVD) and pack cementation. The microstructure, thermal shock and isothermal oxidation resistance of the coating were investigated. HfC nanowires could improve the toughness of the coating and suppress the coating cracking. After incorporating HfC nanowires in the coating, both of the thermal shock and isothermal oxidation resistance of the coating were obviously improved. The multilayer coating with HfC nanowires could effectively protect C/C composites at 1773 K for 270 h, whose weight loss is only 0.19%. The good oxidation resistance is mainly attributed to the formation of a compound glass layer containing SiO2 and Cr2O3.

AB - To improve the oxidation resistance of carbon/carbon (C/C) composites, a dense HfC nanowire-toughened Si-Mo-Cr/SiC multilayer coating was prepared by chemical vapor deposition (CVD) and pack cementation. The microstructure, thermal shock and isothermal oxidation resistance of the coating were investigated. HfC nanowires could improve the toughness of the coating and suppress the coating cracking. After incorporating HfC nanowires in the coating, both of the thermal shock and isothermal oxidation resistance of the coating were obviously improved. The multilayer coating with HfC nanowires could effectively protect C/C composites at 1773 K for 270 h, whose weight loss is only 0.19%. The good oxidation resistance is mainly attributed to the formation of a compound glass layer containing SiO2 and Cr2O3.

KW - Cabon/carbon composites

KW - Coating

KW - Hfc nanowires

KW - Oxidation resistance

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U2 - 10.1016/j.ceramint.2016.06.064

DO - 10.1016/j.ceramint.2016.06.064

M3 - 文章

AN - SCOPUS:85008156631

SN - 0272-8842

VL - 42

SP - 14518

EP - 14525

JO - Ceramics International

JF - Ceramics International

IS - 13

ER -

HfC nanowires to improve the toughness and oxidation resistance of Si-Mo-Cr/SiC coating for C/C composites

Abstract

Keywords

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