Particle erosion of C/C-SiC composites with different Al addition in reactive melt infiltrated Si

被引:3
作者
Liu, Lei [1 ]
Feng, Wei [1 ]
Li, Bo-yan [1 ]
Li, Jian-ping [1 ]
Zhang, Lei-lei [2 ]
Guo, Yong-chun [1 ]
He, Zi-bo [1 ]
Cao, Yi [2 ]
Bao, Ai-lin [1 ]
机构
[1] Xian Technol Univ, Sch Mat & Chem Engn, Xian 710021, Peoples R China
[2] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
基金
中国国家自然科学基金;
关键词
C; C-SiC; Al addition; reactive melt infiltration; solid particle erosion; TRIBOLOGICAL CHARACTERISTICS; C/C-SIC-ZRB2; COMPOSITES; ABLATION BEHAVIOR; MICROSTRUCTURE; COATINGS;
D O I
10.1007/s11771-020-4481-0
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
Particle erosion of C/C-SiC composites prepared by reactive melt infiltration with different Al addition was studied by gas-entrained solid particle impingement test. SEM, EDS and XRD were performed to analyze the composites before and after erosion. The results indicate that a U shape relationship curve presents between the erosion rates and Al content, and the lowest erosion rate occurs at 40 wt% Al. Except for the important influence of compactness, the increasing soft Al mixed with reactive SiC, namely the mixture located between carbon and residual Si also, plays a key role in the erosion of the C/C-SiC composites through crack deflection, plastic deformation and bonding cracked Si.
引用
收藏
页码:2557 / 2566
页数:10
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