Mechanical behavior of SiC foam-SiC particles/Al hybrid composites
The hybrid SiC foam-SiC particles/Al double interpenetrating composites to be used as the brake materials of high speed train were fabricated by squeeze casting technique. The influence of the type of matrix on the mechanical properties and the fracture mechanism of the hybrid composites was investigated. The interface bond in the hybrid composites is good for the composites have the unique double interpenetrating structure. The ductile matrix resists the propagation of the microcracks in the struts. During the microcrack propagation process, the energy absorption and the fracture surface area are increased, which increases the ductility of the hybrid composites. The compressive strength of the hybrid composite reinforced by the SiC with the total volume fraction of 53% is 660 MPa, which is higher than that of traditional composite reinforced by single SiC particles.
double interpenetrating hybrid composite fracture mechanism energy absorption crack deflection mechanical behavior
ZHAO Long-zhi ZHAO Ming-juan YAN Hong CAO Xiao-ming ZHANG Jin-song
School of Mechanical and Electrical Engineering, Nanchang University, Nanchang 330031, China Key Lab Key Laboratory of Ministry of Education for Conveyance and Equipment, East China Jiaotong University School of Mechanical and Electrical Engineering, Nanchang University,Nanchang 330031, China Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
国际会议
2009 Frontier Symposium of China Postductors on Materrials Science(2009年中国博士后材料科学前言论坛)
长沙
英文
547-551
2009-11-22（万方平台首次上网日期，不代表论文的发表时间）