自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 27    No. 9    September 2020

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Particle erosion of C/C-SiC composites with different Al addition in reactive melt infiltrated Si
LIU Lei(刘磊)1, FENG Wei(冯薇)1, LI Bo-yan(李博岩)1, LI Jian-ping(李建平)1, ZHANG Lei-lei(张磊磊)2, GUO Yong-chun(郭永春)1, HE Zi-bo(何子博)1, CAO Yi(曹毅)2, BAO Ai-lin(包艾琳)1

1. School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China;
2. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University,
Xi’an 710072, China

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.

 

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

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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