HfC nanowire-toughened TaSi2-TaC-SiC-Si multiphase coating for C/C composites against oxidation

Yu Lei Zhang; Jincui Ren; Song Tian; Hejun Li; Xuanru Ren; Zhixiong Hu

doi:10.1016/j.corsci.2014.10.048

HfC nanowire-toughened TaSi₂-TaC-SiC-Si multiphase coating for C/C composites against oxidation

Yu Lei Zhang, Jincui Ren, Song Tian, Hejun Li, Xuanru Ren, Zhixiong Hu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

68 Scopus citations

Abstract

To prevent carbon/carbon (C/C) composites from oxidation at high temperature, a HfC nanowire-toughened TaSi₂-TaC-SiC-Si multiphase coating was prepared by a two-step technique including chemical vapor deposition (CVD) and pack cementation. The microstructure and oxidation resistance of the coating were investigated. The HfC nanowires can effectively reduce the size of microcracks and avoid the formation of through-thickness microcracks in the multiphase coating. Due to the toughening mechanisms including nanowire pullout and debonding, the cyclic and isothermal oxidation resistance of the coating are both improved.

Original language	English
Pages (from-to)	554-561
Number of pages	8
Journal	Corrosion Science
Volume	90
DOIs	https://doi.org/10.1016/j.corsci.2014.10.048
State	Published - 1 Jan 2015

Keywords

A. Ceramic matrix composites
B. Thermal cycling
B. Weight loss
C. High temperature corrosion
C. Oxidation

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10.1016/j.corsci.2014.10.048

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title = "HfC nanowire-toughened TaSi2-TaC-SiC-Si multiphase coating for C/C composites against oxidation",

abstract = "To prevent carbon/carbon (C/C) composites from oxidation at high temperature, a HfC nanowire-toughened TaSi2-TaC-SiC-Si multiphase coating was prepared by a two-step technique including chemical vapor deposition (CVD) and pack cementation. The microstructure and oxidation resistance of the coating were investigated. The HfC nanowires can effectively reduce the size of microcracks and avoid the formation of through-thickness microcracks in the multiphase coating. Due to the toughening mechanisms including nanowire pullout and debonding, the cyclic and isothermal oxidation resistance of the coating are both improved.",

keywords = "A. Ceramic matrix composites, B. Thermal cycling, B. Weight loss, C. High temperature corrosion, C. Oxidation",

author = "Zhang, {Yu Lei} and Jincui Ren and Song Tian and Hejun Li and Xuanru Ren and Zhixiong Hu",

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

year = "2015",

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doi = "10.1016/j.corsci.2014.10.048",

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TY - JOUR

T1 - HfC nanowire-toughened TaSi2-TaC-SiC-Si multiphase coating for C/C composites against oxidation

AU - Zhang, Yu Lei

AU - Ren, Jincui

AU - Tian, Song

AU - Li, Hejun

AU - Ren, Xuanru

AU - Hu, Zhixiong

PY - 2015/1/1

Y1 - 2015/1/1

N2 - To prevent carbon/carbon (C/C) composites from oxidation at high temperature, a HfC nanowire-toughened TaSi2-TaC-SiC-Si multiphase coating was prepared by a two-step technique including chemical vapor deposition (CVD) and pack cementation. The microstructure and oxidation resistance of the coating were investigated. The HfC nanowires can effectively reduce the size of microcracks and avoid the formation of through-thickness microcracks in the multiphase coating. Due to the toughening mechanisms including nanowire pullout and debonding, the cyclic and isothermal oxidation resistance of the coating are both improved.

AB - To prevent carbon/carbon (C/C) composites from oxidation at high temperature, a HfC nanowire-toughened TaSi2-TaC-SiC-Si multiphase coating was prepared by a two-step technique including chemical vapor deposition (CVD) and pack cementation. The microstructure and oxidation resistance of the coating were investigated. The HfC nanowires can effectively reduce the size of microcracks and avoid the formation of through-thickness microcracks in the multiphase coating. Due to the toughening mechanisms including nanowire pullout and debonding, the cyclic and isothermal oxidation resistance of the coating are both improved.

KW - A. Ceramic matrix composites

KW - B. Thermal cycling

KW - B. Weight loss

KW - C. High temperature corrosion

KW - C. Oxidation

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U2 - 10.1016/j.corsci.2014.10.048

DO - 10.1016/j.corsci.2014.10.048

M3 - 文章

AN - SCOPUS:84913555034

SN - 0010-938X

VL - 90

SP - 554

EP - 561

JO - Corrosion Science

JF - Corrosion Science

ER -

HfC nanowire-toughened TaSi₂-TaC-SiC-Si multiphase coating for C/C composites against oxidation

Abstract

Keywords

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