B2O3 modified SiC-MoSi2 oxidation resistant coating for carbon/carbon composites by a two-step pack cementation

Qian Gang Fu; He Jun Li; Yong Jie Wang; Ke Zhi Li; Xiao Hong Shi

doi:10.1016/j.corsci.2009.06.033

B₂O₃ modified SiC-MoSi₂ oxidation resistant coating for carbon/carbon composites by a two-step pack cementation

Qian Gang Fu, He Jun Li, Yong Jie Wang, Ke Zhi Li, Xiao Hong Shi

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

95 Scopus citations

Abstract

To protect carbon/carbon (C/C) composites against oxidation, a B₂O₃ modified SiC-MoSi₂ coating was prepared by a two-step pack cementation. The microstructure and the oxidation resistant property of the coating were studied. The results show that, the as-received coating is a dense structure, and is composed of α-SiC, β-SiC and MoSi₂. The B₂O₃ modified SiC-MoSi₂ coating has excellent oxidation resistant property, and can protect C/C composites from oxidation at 1773 K in air for more than 242 h. The failure of the coating was considered to arise from the existence of the penetration cracks in the coating during the slow cooling from 1873 to 673 K.

Original language	English
Pages (from-to)	2450-2454
Number of pages	5
Journal	Corrosion Science
Volume	51
Issue number	10
DOIs	https://doi.org/10.1016/j.corsci.2009.06.033
State	Published - Oct 2009

Keywords

A. Ceramic matrix composites
A. Intermetallic
C. Oxidation

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10.1016/j.corsci.2009.06.033

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title = "B2O3 modified SiC-MoSi2 oxidation resistant coating for carbon/carbon composites by a two-step pack cementation",

abstract = "To protect carbon/carbon (C/C) composites against oxidation, a B2O3 modified SiC-MoSi2 coating was prepared by a two-step pack cementation. The microstructure and the oxidation resistant property of the coating were studied. The results show that, the as-received coating is a dense structure, and is composed of α-SiC, β-SiC and MoSi2. The B2O3 modified SiC-MoSi2 coating has excellent oxidation resistant property, and can protect C/C composites from oxidation at 1773 K in air for more than 242 h. The failure of the coating was considered to arise from the existence of the penetration cracks in the coating during the slow cooling from 1873 to 673 K.",

keywords = "A. Ceramic matrix composites, A. Intermetallic, C. Oxidation",

author = "Fu, {Qian Gang} and Li, {He Jun} and Wang, {Yong Jie} and Li, {Ke Zhi} and Shi, {Xiao Hong}",

year = "2009",

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doi = "10.1016/j.corsci.2009.06.033",

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volume = "51",

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journal = "Corrosion Science",

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TY - JOUR

T1 - B2O3 modified SiC-MoSi2 oxidation resistant coating for carbon/carbon composites by a two-step pack cementation

AU - Fu, Qian Gang

AU - Li, He Jun

AU - Wang, Yong Jie

AU - Li, Ke Zhi

AU - Shi, Xiao Hong

PY - 2009/10

Y1 - 2009/10

N2 - To protect carbon/carbon (C/C) composites against oxidation, a B2O3 modified SiC-MoSi2 coating was prepared by a two-step pack cementation. The microstructure and the oxidation resistant property of the coating were studied. The results show that, the as-received coating is a dense structure, and is composed of α-SiC, β-SiC and MoSi2. The B2O3 modified SiC-MoSi2 coating has excellent oxidation resistant property, and can protect C/C composites from oxidation at 1773 K in air for more than 242 h. The failure of the coating was considered to arise from the existence of the penetration cracks in the coating during the slow cooling from 1873 to 673 K.

AB - To protect carbon/carbon (C/C) composites against oxidation, a B2O3 modified SiC-MoSi2 coating was prepared by a two-step pack cementation. The microstructure and the oxidation resistant property of the coating were studied. The results show that, the as-received coating is a dense structure, and is composed of α-SiC, β-SiC and MoSi2. The B2O3 modified SiC-MoSi2 coating has excellent oxidation resistant property, and can protect C/C composites from oxidation at 1773 K in air for more than 242 h. The failure of the coating was considered to arise from the existence of the penetration cracks in the coating during the slow cooling from 1873 to 673 K.

KW - A. Ceramic matrix composites

KW - A. Intermetallic

KW - C. Oxidation

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U2 - 10.1016/j.corsci.2009.06.033

DO - 10.1016/j.corsci.2009.06.033

M3 - 文章

AN - SCOPUS:69449089060

SN - 0010-938X

VL - 51

SP - 2450

EP - 2454

JO - Corrosion Science

JF - Corrosion Science

IS - 10

ER -

B₂O₃ modified SiC-MoSi₂ oxidation resistant coating for carbon/carbon composites by a two-step pack cementation

Abstract

Keywords

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