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

Lin Geng; Hong Mei Wei; Xue Xi Zhang

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

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Influence of Extrusion Temperature on Microstructures and Mechanical Properties of Bi₂O₃-Coated Al₁₈B₄O₃₃ Whisker Reinforced Al Composites
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 353-358Investigation on the Primary Si Phase...

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

Abstract:

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.

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Periodical:

Key Engineering Materials (Volumes 353-358)

Pages:

1275-1278

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.353-358.1275

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Online since:

September 2007

Authors:

Lin Geng, Hong Mei Wei, Xue Xi Zhang

Keywords:

Alloy, Metal Matrix Composite (MMC), Property Analysis, SiC Whisker, Solidification

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DOI: 10.3390/ma11030456

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