Characterization of a powder metallurgy SiC/Cu-Al composite

被引:86
作者
Wang, Hailong [1 ,2 ]
Zhang, Rui [1 ]
Hu, Xing [1 ]
Wang, Chang-An [2 ]
Huan, Yong [2 ]
机构
[1] Zhengzhou Univ, Minist Educ China, Phys Mat Lab, Henan 450002, Peoples R China
[2] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
关键词
SiC/Cu-Al; composite; microstructure; density; powder metallurgy;
D O I
10.1016/j.jmatprotec.2007.06.002
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
SiC particulate-reinforced Al composites were prepared by powder metallurgy (PM) method and conventional atmospheric sintering. Scanning electron microscope (SEM), X-ray diffraction (XRD) techniques were used to characterize the sintered composites. The effect of temperature on the density; hardness, strength, and microstructure of composites was investigated. Detailed failure behavior was analyzed. It was found that the segregation of Sic appeared at higher temperature. The highest micro-hardness of 80 MPa occurred at 700 degrees C. The strength tended to increase with the increasing temperature due to the formation of Al2Cu. Both ductile and brittle fracture features were observed. (C) 2007 Published by Elsevier B.V.
引用
收藏
页码:43 / 48
页数:6
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