Microstructural evolution of coating-modified 3D C/SiC composites after annealing in wet oxygen at different temperatures

Siwei Li; Zude Feng; Yongsheng Liu; Wenbin Yang; Weihua Zhang; Laifei Cheng; Litong Zhang

doi:10.1016/j.corsci.2010.04.032

Microstructural evolution of coating-modified 3D C/SiC composites after annealing in wet oxygen at different temperatures

Siwei Li, Zude Feng, Yongsheng Liu, Wenbin Yang, Weihua Zhang, Laifei Cheng, Litong Zhang

School of Materials Sience and Engineering

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

38 Scopus citations

Abstract

Two types of coating-modified 3D C/SiC, coated with CVD SiC/SiC/SiC (type I) and CVD SiC/amorphous-BC/SiC (type II), are subjected to a 14 vol.% H₂O/8 vol.% O₂/78 vol.% Ar atmosphere at 700, 1000 and 1200 °C up to 100 h. Microstructure and corrosion behaviour are investigated using a variety of characterization techniques. The type II shows a better oxidation resistance than type I during annealing at relatively low temperatures. Nevertheless, residual strength of the type I annealed above 1000 °C is enhanced by healing of many micron-sized defects. Interfacial bond strength of the composites is reasonably improved after annealing.

Original language	English
Pages (from-to)	2837-2845
Number of pages	9
Journal	Corrosion Science
Volume	52
Issue number	9
DOIs	https://doi.org/10.1016/j.corsci.2010.04.032
State	Published - Sep 2010

Keywords

A. Ceramic matrix composites
B. SEM
B. TEM
C. Interfaces
C. Oxidation

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10.1016/j.corsci.2010.04.032

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@article{85da222903874385a7a51898b25f059f,

title = "Microstructural evolution of coating-modified 3D C/SiC composites after annealing in wet oxygen at different temperatures",

abstract = "Two types of coating-modified 3D C/SiC, coated with CVD SiC/SiC/SiC (type I) and CVD SiC/amorphous-BC/SiC (type II), are subjected to a 14 vol.% H2O/8 vol.% O2/78 vol.% Ar atmosphere at 700, 1000 and 1200 °C up to 100 h. Microstructure and corrosion behaviour are investigated using a variety of characterization techniques. The type II shows a better oxidation resistance than type I during annealing at relatively low temperatures. Nevertheless, residual strength of the type I annealed above 1000 °C is enhanced by healing of many micron-sized defects. Interfacial bond strength of the composites is reasonably improved after annealing.",

keywords = "A. Ceramic matrix composites, B. SEM, B. TEM, C. Interfaces, C. Oxidation",

author = "Siwei Li and Zude Feng and Yongsheng Liu and Wenbin Yang and Weihua Zhang and Laifei Cheng and Litong Zhang",

year = "2010",

month = sep,

doi = "10.1016/j.corsci.2010.04.032",

language = "英语",

volume = "52",

pages = "2837--2845",

journal = "Corrosion Science",

issn = "0010-938X",

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number = "9",

}

TY - JOUR

T1 - Microstructural evolution of coating-modified 3D C/SiC composites after annealing in wet oxygen at different temperatures

AU - Li, Siwei

AU - Feng, Zude

AU - Liu, Yongsheng

AU - Yang, Wenbin

AU - Zhang, Weihua

AU - Cheng, Laifei

AU - Zhang, Litong

PY - 2010/9

Y1 - 2010/9

N2 - Two types of coating-modified 3D C/SiC, coated with CVD SiC/SiC/SiC (type I) and CVD SiC/amorphous-BC/SiC (type II), are subjected to a 14 vol.% H2O/8 vol.% O2/78 vol.% Ar atmosphere at 700, 1000 and 1200 °C up to 100 h. Microstructure and corrosion behaviour are investigated using a variety of characterization techniques. The type II shows a better oxidation resistance than type I during annealing at relatively low temperatures. Nevertheless, residual strength of the type I annealed above 1000 °C is enhanced by healing of many micron-sized defects. Interfacial bond strength of the composites is reasonably improved after annealing.

AB - Two types of coating-modified 3D C/SiC, coated with CVD SiC/SiC/SiC (type I) and CVD SiC/amorphous-BC/SiC (type II), are subjected to a 14 vol.% H2O/8 vol.% O2/78 vol.% Ar atmosphere at 700, 1000 and 1200 °C up to 100 h. Microstructure and corrosion behaviour are investigated using a variety of characterization techniques. The type II shows a better oxidation resistance than type I during annealing at relatively low temperatures. Nevertheless, residual strength of the type I annealed above 1000 °C is enhanced by healing of many micron-sized defects. Interfacial bond strength of the composites is reasonably improved after annealing.

KW - A. Ceramic matrix composites

KW - B. SEM

KW - B. TEM

KW - C. Interfaces

KW - C. Oxidation

UR - http://www.scopus.com/inward/record.url?scp=77953963245&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2010.04.032

DO - 10.1016/j.corsci.2010.04.032

M3 - 文章

AN - SCOPUS:77953963245

SN - 0010-938X

VL - 52

SP - 2837

EP - 2845

JO - Corrosion Science

JF - Corrosion Science

IS - 9

ER -

Microstructural evolution of coating-modified 3D C/SiC composites after annealing in wet oxygen at different temperatures

Abstract

Keywords

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