Abstract
Hybrid sol–gel process was used to fabricate the precursor particles of amorphous SiO2 coating at the composites of SiCp⁄Cu, and then formed by Vacuum hot-pressed method. Various methods were used to measure the sintered compacts of different SiC volume fraction. The results showed that the densities, bending strength and conductivity were decreased slightly with the increases in the amounts of SiC, and the vickers hardness were increased first and then decreased. The techniques of DTA–TG, SEM–EDS and XRD were used to characterize the phases and the morphologies of the composite particles and composites. It was inferred that the formation of SiO2–Cu2O eutectic mixture in this system and the viscous interaction of amorphous SiO2 improved the interfacial modification of the composites of SiCp⁄Cu.
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