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

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2025年 / 45卷 / 02期

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.

引用

页数：14