Surface modification effects of SiC tile on the wettability and interfacial bond strength of SiC tile/Al7075-SiCp hybrid composites
2016
Abstract This study investigates the effects of a surface modification of a SiC tile on the wetting behavior and interfacial bond strength of SiC tile/Al7075-SiC p hybrid composites fabricated by a liquid-press process. SiO 2 , Ni, and Si layers were fabricated on each SiC tile, and the microstructures at the interface between the surface-modified SiC tile and the Al7075 were analyzed. In addition, the interfacial bond strength and wettability between the SiC tile and Al7075 were measured by the push-out method and the sessile drop method, respectively. The interfacial bond strength and wettability tests demonstrate that the surface modification of a SiC tile with Al7075 can effectively improve the tendency to attain wetting between the SiC tile and Al7075, due to the suppression of the formation of brittle Al 4 C 3 at the interface between the SiC tile and Al7075.
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