Optimizing Microstructure and Properties of SiCf/SiC Composites Prepared by Reactive Melt Infiltration

被引：13
作者：
Zhang Junmin [1 ,2 ,3 ]
Chen Xiaowu [1 ,2 ]
Liao Chunjin [1 ,2 ]
Guo Feiyu [1 ,2 ,3 ]
Yang Jinshan [1 ,2 ]
Zhang Xiangyu [1 ,2 ]
Dong Shaoming [1 ,2 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
[2] Chinese Acad Sci, Struct Ceram & Composites Engn Res Ctr, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
[3] Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China
来源：
JOURNAL OF INORGANIC MATERIALS | 2021年 / 36卷 / 10期
基金：
中国国家自然科学基金;
关键词：
SiCf/SiC composites; reactive melt infiltration (RMI); pore structure; microstructure; infiltration kinetics; C PREFORMS PART; CAPILLARY INFILTRATION; POROUS CARBON; SILICON; FABRICATION; KINETICS; LIQUIDS;
D O I：
10.15541/jim20210091
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：
Reactive melt infiltration (RMI) is one of the most effective methods to prepare highly dense ceramic matrix composites. The melt infiltration and the formation of composites are mainly determined by the pore structure of preforms. Here, SiC fiber reinforced SiC matrix composites (SiCf/SiC) were prepared by infiltrating Si melt into carbon-contained preforms with various pore structures. Effects of pore structure on the melt infiltration and received SiCf/SiC composites were investigated. The results indicated that the preforms with more homogeneous pore size could lead to more sufficient melt infiltration, and also resulted in fewer residual pores and better mechanical properties in the composites. This study is expected to provide important guidance for the pore structure regulation in the fabrication of RMI-composites.
引用
收藏
页码：1103 / 1110
页数：8
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