To improve the interfacial bonding quality of carbon fiber reinforced aluminum-matrix composites, a strategy combining electroless copper plating process and hot-pressing regulation was developed. The results indicate that island-like protrusions and uncoated defects on the carbon fiber surface are effectively eliminated by taking sodium dodecylbenzene sulfonate as dispersant combined with pH value of electroless plating solution, leading to a continuous and smooth copper coating. On this basis, copper coating diffusion can be induced at 600 ℃ by adjusting hot-pressing sintering temperature, resulting in a fine Al
2
Cu phase(0.92 µm), which improves the interfacial bonding. The tensile strength of composites is 169% higher than that of pure aluminum with carbon fiber volume fraction of 2.6%, and the fiber reinforcement efficiency reaches 95.1%. The failure behavior is characterized by mixed mode of fiber pull-out and direct fiber-cutting.
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