Improved wet-oxidation resistance of SiCf/SiC composites modified with Y2O3

被引：16

作者：

Zhang, Junmin ^{[1
,2
,3
]}

Chen, Xiaowu ^{[1
,2
]}

Guo, Feiyu ^{[1
,2
,3
]}

Yang, Jinshan ^{[1
,2
]}

Zhang, Xiangyu ^{[1
,2
]}

Kan, Yanmei ^{[1
,2
]}

Hu, Jianbao ^{[1
,2
]}

Xue, Yudong ^{[1
,2
]}

Dong, Shaoming ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Super fine, Shanghai 200050, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, Struct Ceram & Composites Engn Res Ctr, Shanghai 200050, Peoples R China

[3] ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China

来源：

CORROSION SCIENCE | 2023年 / 217卷

基金：

中国国家自然科学基金;

关键词：

SiC f /SiC composites; Wet-oxidation; Matrix modification; Rare earth; ENVIRONMENTAL BARRIER COATINGS; CERAMIC-MATRIX COMPOSITES; SIO2 SCALE VOLATILITY; SILICON-CARBIDE; COMBUSTION CONDITIONS; THERMAL-PROPERTIES; HEAT-TREATMENT; WATER-VAPOR; TEMPERATURE; MICROSTRUCTURE;

D O I：

10.1016/j.corsci.2023.111121

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Y2O3 was introduced into the SiC matrix to improving the wet-oxidation resistance of SiCf/SiC composites. The effects of Y2O3 on the mechanical properties and the wet-oxidation resistance of the composites were investigated. The results indicate that Y2O3 presents little negative effect on the mechanical properties. Besides, the introduction of Y2O3 effectively improves the wet-oxidation resistance of SiCf/SiC composites by forming a continuous Y2Si2O7 layer on the surface during the oxidation process. Compared with original SiCf/SiC composites, the strength retention rates of SiCf/SiC-Y2O3 composites oxidized for 20 h, 60 h and 100 h at 1400 celcius respectively increase 5.62%, 17.58% and 23.08%.

引用

页数：9

共 41 条

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