Salt-fog corrosion behavior of C/SiC and its effect on ablation resistance

Su Cheng; Xing Zhao; Guang Yang; Yiguang Wang

doi:10.1016/j.jmst.2019.04.037

Salt-fog corrosion behavior of C/SiC and its effect on ablation resistance

Su Cheng, Xing Zhao, Guang Yang, Yiguang Wang^*

^*Corresponding author for this work

Northwestern Polytechnical University Xian

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

6 Citations (Scopus)

Abstract

Carbon fiber-reinforced silicon carbide (C/SiC) composites are significantly important candidates for thermal protection materials. The corrosion mechanism of C/SiC composite materials is the basis of their optimization and application. In this study, structural evolution of C/SiC composites fabricated by chemical vapor infiltration was investigated in the salt-fog storage environment. Furthermore, the effect of salt-fog on their ablation behaviors under oxyacetylene flame environment was studied. The ablation morphologies and corrosion mechanisms of C/SiC composites were analyzed and discussed. The results indicated that silica layer with size of c.a. 20 nm was formed on the surface of composite. The extent of corrosion in salt fog was limited, and it had little effect on the ablation behavior of the C/SiC composites, as well on the tensile strength and bending strength.

Original language	English
Pages (from-to)	2772-2777
Number of pages	6
Journal	Journal of Materials Science and Technology
Volume	35
Issue number	12
DOIs	https://doi.org/10.1016/j.jmst.2019.04.037
Publication status	Published - Dec 2019
Externally published	Yes

Keywords

Ablation property
Ceramic matrix composites
Oxidation
Salt fog corrosion

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10.1016/j.jmst.2019.04.037

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title = "Salt-fog corrosion behavior of C/SiC and its effect on ablation resistance",

abstract = "Carbon fiber-reinforced silicon carbide (C/SiC) composites are significantly important candidates for thermal protection materials. The corrosion mechanism of C/SiC composite materials is the basis of their optimization and application. In this study, structural evolution of C/SiC composites fabricated by chemical vapor infiltration was investigated in the salt-fog storage environment. Furthermore, the effect of salt-fog on their ablation behaviors under oxyacetylene flame environment was studied. The ablation morphologies and corrosion mechanisms of C/SiC composites were analyzed and discussed. The results indicated that silica layer with size of c.a. 20 nm was formed on the surface of composite. The extent of corrosion in salt fog was limited, and it had little effect on the ablation behavior of the C/SiC composites, as well on the tensile strength and bending strength.",

keywords = "Ablation property, Ceramic matrix composites, Oxidation, Salt fog corrosion",

author = "Su Cheng and Xing Zhao and Guang Yang and Yiguang Wang",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = dec,

doi = "10.1016/j.jmst.2019.04.037",

language = "English",

volume = "35",

pages = "2772--2777",

journal = "Journal of Materials Science and Technology",

issn = "1005-0302",

publisher = "Chinese Society of Metals",

number = "12",

}

TY - JOUR

T1 - Salt-fog corrosion behavior of C/SiC and its effect on ablation resistance

AU - Cheng, Su

AU - Zhao, Xing

AU - Yang, Guang

AU - Wang, Yiguang

PY - 2019/12

Y1 - 2019/12

N2 - Carbon fiber-reinforced silicon carbide (C/SiC) composites are significantly important candidates for thermal protection materials. The corrosion mechanism of C/SiC composite materials is the basis of their optimization and application. In this study, structural evolution of C/SiC composites fabricated by chemical vapor infiltration was investigated in the salt-fog storage environment. Furthermore, the effect of salt-fog on their ablation behaviors under oxyacetylene flame environment was studied. The ablation morphologies and corrosion mechanisms of C/SiC composites were analyzed and discussed. The results indicated that silica layer with size of c.a. 20 nm was formed on the surface of composite. The extent of corrosion in salt fog was limited, and it had little effect on the ablation behavior of the C/SiC composites, as well on the tensile strength and bending strength.

AB - Carbon fiber-reinforced silicon carbide (C/SiC) composites are significantly important candidates for thermal protection materials. The corrosion mechanism of C/SiC composite materials is the basis of their optimization and application. In this study, structural evolution of C/SiC composites fabricated by chemical vapor infiltration was investigated in the salt-fog storage environment. Furthermore, the effect of salt-fog on their ablation behaviors under oxyacetylene flame environment was studied. The ablation morphologies and corrosion mechanisms of C/SiC composites were analyzed and discussed. The results indicated that silica layer with size of c.a. 20 nm was formed on the surface of composite. The extent of corrosion in salt fog was limited, and it had little effect on the ablation behavior of the C/SiC composites, as well on the tensile strength and bending strength.

KW - Ablation property

KW - Ceramic matrix composites

KW - Oxidation

KW - Salt fog corrosion

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U2 - 10.1016/j.jmst.2019.04.037

DO - 10.1016/j.jmst.2019.04.037

M3 - Article

AN - SCOPUS:85075082188

SN - 1005-0302

VL - 35

SP - 2772

EP - 2777

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

IS - 12

ER -

Salt-fog corrosion behavior of C/SiC and its effect on ablation resistance

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Keywords

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