Silicon carbide coating to protect carbon/carbon composites against oxidation

Qian Gang Fu; He Jun Li; Xiao Hong Shi; Ke Zhi Li; Guo Dong Sun

doi:10.1016/j.scriptamat.2004.12.029

Silicon carbide coating to protect carbon/carbon composites against oxidation

Qian Gang Fu, He Jun Li, Xiao Hong Shi, Ke Zhi Li, Guo Dong Sun

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

291 Scopus citations

Abstract

In order to protect carbon/carbon (C/C) composites from oxidation, a silicon carbide coating has been produced by a two-step pack cementation technique. XRD analysis showed that the inner coating obtained from the first step was a β-SiC layer and the outer coating formed by the second step pack cementation was composed of α-SiC, Si and β-SiC. The as-received coating provided excellent oxidation resistance, proving able to protect C/C composites from oxidation for more than 310 h at 1773 K in air. The weight loss of the coated C/C composites was considered to arise from the debonding of some glass and the formation of bubble holes on the coating surface.

Original language	English
Pages (from-to)	923-927
Number of pages	5
Journal	Scripta Materialia
Volume	52
Issue number	9
DOIs	https://doi.org/10.1016/j.scriptamat.2004.12.029
State	Published - May 2005

Keywords

Carbon/carbon composites
Coating
Oxidation

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10.1016/j.scriptamat.2004.12.029

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title = "Silicon carbide coating to protect carbon/carbon composites against oxidation",

abstract = "In order to protect carbon/carbon (C/C) composites from oxidation, a silicon carbide coating has been produced by a two-step pack cementation technique. XRD analysis showed that the inner coating obtained from the first step was a β-SiC layer and the outer coating formed by the second step pack cementation was composed of α-SiC, Si and β-SiC. The as-received coating provided excellent oxidation resistance, proving able to protect C/C composites from oxidation for more than 310 h at 1773 K in air. The weight loss of the coated C/C composites was considered to arise from the debonding of some glass and the formation of bubble holes on the coating surface.",

keywords = "Carbon/carbon composites, Coating, Oxidation",

author = "Fu, {Qian Gang} and Li, {He Jun} and Shi, {Xiao Hong} and Li, {Ke Zhi} and Sun, {Guo Dong}",

year = "2005",

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T1 - Silicon carbide coating to protect carbon/carbon composites against oxidation

AU - Fu, Qian Gang

AU - Li, He Jun

AU - Shi, Xiao Hong

AU - Li, Ke Zhi

AU - Sun, Guo Dong

PY - 2005/5

Y1 - 2005/5

N2 - In order to protect carbon/carbon (C/C) composites from oxidation, a silicon carbide coating has been produced by a two-step pack cementation technique. XRD analysis showed that the inner coating obtained from the first step was a β-SiC layer and the outer coating formed by the second step pack cementation was composed of α-SiC, Si and β-SiC. The as-received coating provided excellent oxidation resistance, proving able to protect C/C composites from oxidation for more than 310 h at 1773 K in air. The weight loss of the coated C/C composites was considered to arise from the debonding of some glass and the formation of bubble holes on the coating surface.

AB - In order to protect carbon/carbon (C/C) composites from oxidation, a silicon carbide coating has been produced by a two-step pack cementation technique. XRD analysis showed that the inner coating obtained from the first step was a β-SiC layer and the outer coating formed by the second step pack cementation was composed of α-SiC, Si and β-SiC. The as-received coating provided excellent oxidation resistance, proving able to protect C/C composites from oxidation for more than 310 h at 1773 K in air. The weight loss of the coated C/C composites was considered to arise from the debonding of some glass and the formation of bubble holes on the coating surface.

KW - Carbon/carbon composites

KW - Coating

KW - Oxidation

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DO - 10.1016/j.scriptamat.2004.12.029

M3 - 文章

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SN - 1359-6462

VL - 52

SP - 923

EP - 927

JO - Scripta Materialia

JF - Scripta Materialia

IS - 9

ER -

Silicon carbide coating to protect carbon/carbon composites against oxidation

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Keywords

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