Using SiC particles with different diameter,by effectively controlling the distribution of SiC particles,SiCp/Al composites with different SiC volume fraction(15%~65%) were fabricated under pressureless infiltration processing.In addition,compositional graded SiCp/Al composites were also fabricated in the same way.The microstructure of SiCp/Al was studied by means of OM,XRD.Besides,density test and mechanical test were carried out on selected SiCp/Al composites.According to the study,SiCp/Al composites with different SiC volume fraction by pressureless infiltration possess have even and compact microstructure as well as fine mechanical property.Moreover,the interface between layers of compositional graded composites integrates well and there is no delamination.
Key words
SiCp/Al /
pressureless infiltration /
compositional graded /
composite
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References
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