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

来源期刊:中南大学学报(英文版)2020年第9期

论文作者:刘磊 冯薇 李博岩 李建平 张磊磊 郭永春 何子博 曹毅 包艾琳

文章页码:2557 - 2566

Key words:C/C-SiC; Al addition; reactive melt infiltration; solid particle erosion

Abstract: 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.

Cite this article as: LIU Lei, FENG Wei, LI Bo-yan, LI Jian-ping, ZHANG Lei-lei, GUO Yong-chun, HE Zi-bo, CAO Yi, BAO Ai-lin. Particle erosion of C/C-SiC composites with different Al addition in reactive melt infiltrated Si [J]. Journal of Central South University, 2020, 27(9): 2557-2566. DOI: https://doi.org/10.1007/s11771-020-4481-0.

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