共 41 条
Microstructure and wet-oxygen corrosion behaviors of in-suit grown Y3Si2C2 modified SiCf/SiC composites
被引:0
|作者:
Duan, Junjie
[1
]
Chen, Maolin
[1
]
Wang, Jingjing
[2
]
Wang, Yanfei
[3
]
Chen, Sian
[3
]
Liu, Rongjun
[3
]
Xiao, Peng
[1
]
Li, Yang
[1
]
机构:
[1] Cent South Univ, Natl Key Lab Sci & Technol High Strength Struct Ma, Changsha 410083, Peoples R China
[2] Guobiao Beijing Testing & Certificat Co Ltd, Beijing 100000, Peoples R China
[3] Natl Univ Def Technol, Sci & Technol Adv Ceram Fibers & Composites Lab, Changsha 410083, Peoples R China
基金:
中国国家自然科学基金;
关键词:
SiCf/SiC;
Y3Si2C2;
Wet-oxygen corrosion;
Matrix modification;
MATRIX COMPOSITES;
BARRIER COATINGS;
SILICON-CARBIDE;
OXIDATION;
CERAMICS;
CMCS;
D O I:
10.1016/j.jeurceramsoc.2024.116882
中图分类号:
TQ174 [陶瓷工业];
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
Y3Si2C2 ternary ceramics were in-situ grown in SiCf/SiC composites via molten-salt method for the first time, and the microstructure and wet-oxygen corrosion behavior at 1400 degree celsius for the SiCf/SiC-Y3Si2C2 composite are investigated. Results indicated that the Y3Si2C2 are successfully in-situ grown and uniformly dispersed in the matrix. Compared to the unmodified SiCf/SiC, the SiCf/SiC-Y3Si2C2 exhibits a reduction in flexural strength to 200.39 MPa (SiCf/SiC is of 335.89 MPa), while it demonstrates significant enhancement in wet-oxygen corrosion resistance with a strength retention rate of 89.3 % (SiCf/SiC is of 25.8 %) under conditions of wet-oxygen corrosion environment at 1400 degree celsius.
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页数:14
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