Oxidation protective multilayer CVD SiC coatings modified by a graphitic B-C interlayer for 3D C/SiC composite

Shoujun Wu; Laifei Cheng; Wenbin Yang; Yongsheng Liu; Litong Zhang; Yongdong Xu

doi:10.1007/s10443-006-9025-8

Oxidation protective multilayer CVD SiC coatings modified by a graphitic B-C interlayer for 3D C/SiC composite

Shoujun Wu, Laifei Cheng, Wenbin Yang, Yongsheng Liu, Litong Zhang, Yongdong Xu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

28 Scopus citations

Abstract

A layered graphitic CVD B-C coating was introduced between two CVD SiC coating layers. Microstructure and chemical characterization of the CVD B-C and the hybrid SiC/B-C/SiC multilayer coating was performed using SEM, EDS, XPS and XRD. Oxidation protection ability of the coating for the C/SiC composite was studied using a thermogravimetric analyzer (TGA) in the isothermal mode and by measuring residual flexural strength. The layered graphitic CVD B-C coating middle layer reduced the maximum crack width in the CVD SiC coating. The hybrid SiC/B-C/SiC multilayer coating provided a better oxidation protection for C/SiC composite than a three layer CVD SiC coating due to coating crack control and sealing effects at temperatures up to 1,300°C for 900 min.

Original language	English
Pages (from-to)	397-406
Number of pages	10
Journal	Applied Composite Materials
Volume	13
Issue number	6
DOIs	https://doi.org/10.1007/s10443-006-9025-8
State	Published - Nov 2006

Keywords

C/SiC composite
CVD B-C
CVD SiC
Oxidation

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10.1007/s10443-006-9025-8

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title = "Oxidation protective multilayer CVD SiC coatings modified by a graphitic B-C interlayer for 3D C/SiC composite",

abstract = "A layered graphitic CVD B-C coating was introduced between two CVD SiC coating layers. Microstructure and chemical characterization of the CVD B-C and the hybrid SiC/B-C/SiC multilayer coating was performed using SEM, EDS, XPS and XRD. Oxidation protection ability of the coating for the C/SiC composite was studied using a thermogravimetric analyzer (TGA) in the isothermal mode and by measuring residual flexural strength. The layered graphitic CVD B-C coating middle layer reduced the maximum crack width in the CVD SiC coating. The hybrid SiC/B-C/SiC multilayer coating provided a better oxidation protection for C/SiC composite than a three layer CVD SiC coating due to coating crack control and sealing effects at temperatures up to 1,300°C for 900 min.",

keywords = "C/SiC composite, CVD B-C, CVD SiC, Oxidation",

author = "Shoujun Wu and Laifei Cheng and Wenbin Yang and Yongsheng Liu and Litong Zhang and Yongdong Xu",

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doi = "10.1007/s10443-006-9025-8",

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T1 - Oxidation protective multilayer CVD SiC coatings modified by a graphitic B-C interlayer for 3D C/SiC composite

AU - Wu, Shoujun

AU - Cheng, Laifei

AU - Yang, Wenbin

AU - Liu, Yongsheng

AU - Zhang, Litong

AU - Xu, Yongdong

PY - 2006/11

Y1 - 2006/11

N2 - A layered graphitic CVD B-C coating was introduced between two CVD SiC coating layers. Microstructure and chemical characterization of the CVD B-C and the hybrid SiC/B-C/SiC multilayer coating was performed using SEM, EDS, XPS and XRD. Oxidation protection ability of the coating for the C/SiC composite was studied using a thermogravimetric analyzer (TGA) in the isothermal mode and by measuring residual flexural strength. The layered graphitic CVD B-C coating middle layer reduced the maximum crack width in the CVD SiC coating. The hybrid SiC/B-C/SiC multilayer coating provided a better oxidation protection for C/SiC composite than a three layer CVD SiC coating due to coating crack control and sealing effects at temperatures up to 1,300°C for 900 min.

AB - A layered graphitic CVD B-C coating was introduced between two CVD SiC coating layers. Microstructure and chemical characterization of the CVD B-C and the hybrid SiC/B-C/SiC multilayer coating was performed using SEM, EDS, XPS and XRD. Oxidation protection ability of the coating for the C/SiC composite was studied using a thermogravimetric analyzer (TGA) in the isothermal mode and by measuring residual flexural strength. The layered graphitic CVD B-C coating middle layer reduced the maximum crack width in the CVD SiC coating. The hybrid SiC/B-C/SiC multilayer coating provided a better oxidation protection for C/SiC composite than a three layer CVD SiC coating due to coating crack control and sealing effects at temperatures up to 1,300°C for 900 min.

KW - C/SiC composite

KW - CVD B-C

KW - CVD SiC

KW - Oxidation

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DO - 10.1007/s10443-006-9025-8

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VL - 13

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JO - Applied Composite Materials

JF - Applied Composite Materials

IS - 6

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Oxidation protective multilayer CVD SiC coatings modified by a graphitic B-C interlayer for 3D C/SiC composite

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Keywords

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