Hybrid fiber metal composite laminate interlaminar reinforcement through metal interlocks

Interface Wetting Driven by Laplace Pressure on Multiscale Topographies and Its Application to Performance Enhancement of Metal-Composite Hybrid Structure

“…Metal-composite hybrid structure combines the advantages of metal (good ductility and low cost) and composite materials (high specific strength, excellent impact, and corrosion resistance) and has been applied in aerospace (aircraft fuselages), automotive (pillar component and wheel), and energy fields (photovoltaic and battery). , To ensure its mechanical performance, surface treatment is generally applied to strengthening the interfacial bonding performance between polymer and metal, where fabrication of surface topographies has been generally adopted owing to the introduction of effective mechanical interlocking at the bonding interface. , However, insufficient wetting commonly causes the formation of pore defects at the bonding interface during the interface wetting process of polymer on surface topographies of metals, which is detrimental to the interfacial bonding performance, , and varied dimensions of surface topographies increase the complexity to analyze wetting behavior. Therefore, the wetting behavior is important in the application of surface topographies to improving interfacial bonding performance between polymer and metal, and interface wetting of polymer on multiscale surface topographies remains an important research focus.…”