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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 17    Special 1    November 2007

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Mechanical properties and fractograph of SiC foam-
SiC particles-Al composites
ZHAO Long-zhi(赵龙志)1, ZHAO Ming-juan(赵明娟)1, CAO Xiao-ming(曹小明)2,
TIAN Chong(田  冲)2, HU Wan-ping(胡宛平)2, ZHANG Jin-song(张

1. School of Mechanical and Electronic Engineering, East China Jiaotong University, Nanchang 330013, China;
2. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

Abstract:A new type of hybrid SiC foam-SiC particles-Al composites used as an electronic packaging substrate material were fabricated by squeeze casting technique. The mechanical properties and the fracture mechanism of the hybrid composites were investigated. The influence of SiC particles and foam hybrid reinforcement on the behavior of the composites was studied. The results show that the interface bonding in the hybrid composites is good for the composites with the unique double interpenetrating structure. The compressive strength of the hybrid composite reinforced by the SiC with the volume fraction of 59.9% is 680 MPa, which is higher than that of any other composites with the same volume fraction of SiC particles reinforcement.

 

Key words: hybrid composites; double interpenetrating; mechanical property; fractograph

ISSN 1672-7029
CN 43-1423/U

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