Investigation on the Primary Si Phase Solidification and the Properties of SiCw/Al-18Si Composites

Abstract:

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SiCw/Al-18Si composites were prepared by squeeze casting technique. SiCw/Al-18Si composites were remelted before solidification. The effects of volume fraction of SiC whisker on solidification behavior of SiCw/Al-18Si composites were investigated by means of differential scanning calorimetry (DSC) technique and microstructure observation. DSC results indicated that the start solidification temperature and primary silicon peak temperature decreased gradually and the degree of supercooling increased with the increasing of SiC whisker content. SiC whisker and Sr decreased the average size of Si phases and improved the mechanical properties of the composites.

Info:

Periodical:

Key Engineering Materials (Volumes 353-358)

Edited by:

Yu Zhou, Shan-Tung Tu and Xishan Xie

Pages:

1275-1278

DOI:

10.4028/www.scientific.net/KEM.353-358.1275

Citation:

L. Geng et al., "Investigation on the Primary Si Phase Solidification and the Properties of SiCw/Al-18Si Composites", Key Engineering Materials, Vols. 353-358, pp. 1275-1278, 2007

Online since:

September 2007

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Price:

$35.00

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