Oxidative protection of a carbon-bonded carbon fiber composite with double-layer coating of MoSi2-SiC whisker and TaSi2-MoSi2-SiC whisker by slurry method

Bin Du; Changqing Hong; Qiang Qu; Shanbao Zhou; Chen Liu; Xinghong Zhang

doi:10.1016/j.ceramint.2017.04.140

Oxidative protection of a carbon-bonded carbon fiber composite with double-layer coating of MoSi₂-SiC whisker and TaSi₂-MoSi₂-SiC whisker by slurry method

Bin Du
, Changqing Hong^*
, Qiang Qu
, Shanbao Zhou
, Chen Liu
, Xinghong Zhang

^*Corresponding author for this work

Harbin Institute of Technology
China Aerospace Science and Technology Corporation

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

58 Scopus citations

Abstract

This paper presents a double-layered coating system consisting of MoSi₂ ceramic reinforced with SiC whiskers and a MoSi₂-TaSi₂ ceramic coating reinforced with SiC whiskers. This system improves oxidation resistance of carbon-bonded carbon fiber (CBCF) composites. Double-layer coating was about 160 µm in thickness and no interfaces or cracks between the layer and matrix were observed. Isothermal oxidation tests revealed that as-prepared coating presented excellent oxidation resistance, which could protect CBCF composites at 1500 °C for 160 min with 0.02% weight loss, whereas weight loss of single MoSi₂ ceramic coating reinforced with SiC whiskers reached 0.08%. High-temperature resistance barrier of the glassy phase and Ta₂O₅ had a positive effect on improving the oxidation resistance of double-layer coating.

Original language	English
Pages (from-to)	9531-9537
Number of pages	7
Journal	Ceramics International
Volume	43
Issue number	12
DOIs	https://doi.org/10.1016/j.ceramint.2017.04.140
State	Published - 15 Aug 2017

Keywords

Carbon-bonded carbon fiber composites
Double-layer coating
Oxidation resistance
Slurry method

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10.1016/j.ceramint.2017.04.140

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title = "Oxidative protection of a carbon-bonded carbon fiber composite with double-layer coating of MoSi2-SiC whisker and TaSi2-MoSi2-SiC whisker by slurry method",

abstract = "This paper presents a double-layered coating system consisting of MoSi2 ceramic reinforced with SiC whiskers and a MoSi2-TaSi2 ceramic coating reinforced with SiC whiskers. This system improves oxidation resistance of carbon-bonded carbon fiber (CBCF) composites. Double-layer coating was about 160 µm in thickness and no interfaces or cracks between the layer and matrix were observed. Isothermal oxidation tests revealed that as-prepared coating presented excellent oxidation resistance, which could protect CBCF composites at 1500 °C for 160 min with 0.02\% weight loss, whereas weight loss of single MoSi2 ceramic coating reinforced with SiC whiskers reached 0.08\%. High-temperature resistance barrier of the glassy phase and Ta2O5 had a positive effect on improving the oxidation resistance of double-layer coating.",

keywords = "Carbon-bonded carbon fiber composites, Double-layer coating, Oxidation resistance, Slurry method",

author = "Bin Du and Changqing Hong and Qiang Qu and Shanbao Zhou and Chen Liu and Xinghong Zhang",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd and Techna Group S.r.l.",

year = "2017",

month = aug,

day = "15",

doi = "10.1016/j.ceramint.2017.04.140",

language = "英语",

volume = "43",

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journal = "Ceramics International",

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TY - JOUR

T1 - Oxidative protection of a carbon-bonded carbon fiber composite with double-layer coating of MoSi2-SiC whisker and TaSi2-MoSi2-SiC whisker by slurry method

AU - Du, Bin

AU - Hong, Changqing

AU - Qu, Qiang

AU - Zhou, Shanbao

AU - Liu, Chen

AU - Zhang, Xinghong

PY - 2017/8/15

Y1 - 2017/8/15

N2 - This paper presents a double-layered coating system consisting of MoSi2 ceramic reinforced with SiC whiskers and a MoSi2-TaSi2 ceramic coating reinforced with SiC whiskers. This system improves oxidation resistance of carbon-bonded carbon fiber (CBCF) composites. Double-layer coating was about 160 µm in thickness and no interfaces or cracks between the layer and matrix were observed. Isothermal oxidation tests revealed that as-prepared coating presented excellent oxidation resistance, which could protect CBCF composites at 1500 °C for 160 min with 0.02% weight loss, whereas weight loss of single MoSi2 ceramic coating reinforced with SiC whiskers reached 0.08%. High-temperature resistance barrier of the glassy phase and Ta2O5 had a positive effect on improving the oxidation resistance of double-layer coating.

AB - This paper presents a double-layered coating system consisting of MoSi2 ceramic reinforced with SiC whiskers and a MoSi2-TaSi2 ceramic coating reinforced with SiC whiskers. This system improves oxidation resistance of carbon-bonded carbon fiber (CBCF) composites. Double-layer coating was about 160 µm in thickness and no interfaces or cracks between the layer and matrix were observed. Isothermal oxidation tests revealed that as-prepared coating presented excellent oxidation resistance, which could protect CBCF composites at 1500 °C for 160 min with 0.02% weight loss, whereas weight loss of single MoSi2 ceramic coating reinforced with SiC whiskers reached 0.08%. High-temperature resistance barrier of the glassy phase and Ta2O5 had a positive effect on improving the oxidation resistance of double-layer coating.

KW - Carbon-bonded carbon fiber composites

KW - Double-layer coating

KW - Oxidation resistance

KW - Slurry method

UR - https://www.scopus.com/pages/publications/85018681582

U2 - 10.1016/j.ceramint.2017.04.140

DO - 10.1016/j.ceramint.2017.04.140

M3 - 文章

AN - SCOPUS:85018681582

SN - 0272-8842

VL - 43

SP - 9531

EP - 9537

JO - Ceramics International

JF - Ceramics International

IS - 12

ER -

Oxidative protection of a carbon-bonded carbon fiber composite with double-layer coating of MoSi₂-SiC whisker and TaSi₂-MoSi₂-SiC whisker by slurry method

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Keywords

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