Preparation of Al-Based Metal Matrix Composites Reinforced by Cu Coated SiC Particles

Abstract:

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In order to improve the interfacial behavior between SiC and Al, a surface layer of Cu was coated on SiC particles. The influence of pH value on the coating process was analyzed. A powder metallurgy method was used to prepare the Al-based metal matrix composites (MMCs). SEM, XRD techniques were used to characterize the sintered compacts. It was found that the optimized pH value during the coating process was 1~2. The specimen showed the maximum density when sintered at 750oC. Inter-metallic compound of Al3.21Si0.47 was detected which contributed to the enhancement at the interface between SiC and Al. The hardness of the composites is improved to 90 MPa.

Info:

Periodical:

Key Engineering Materials (Volumes 280-283)

Edited by:

Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li

Pages:

1493-1496

DOI:

10.4028/www.scientific.net/KEM.280-283.1493

Citation:

H. L. Wang et al., "Preparation of Al-Based Metal Matrix Composites Reinforced by Cu Coated SiC Particles", Key Engineering Materials, Vols. 280-283, pp. 1493-1496, 2005

Online since:

February 2007

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Price:

$35.00

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