Polymer/Metal Joining with Carbon Fibers with High Resistance to Pull-Out Induced by Huge Friction Force Generated by Extremely Broad Total Interface Area

Although welding, blazing, rivet connecting and glue are typical joint methods for aerospace materials, they mostly reduced the materials strength. In order to prevent the fracture at joint part between aluminum (Al) and carbon fiber reinforced polymer (CFRP) utilized for airplanes, a new method with extremely large friction force by broad interface of carbon fiber (CF:6 μm-diameter) coated by nickel (Ni) was suggested for a joint (Al/NiCF/CFRP) of CFRP and Al. The Al/CFRP joint method using nickel-coated carbon fiber improved the Charpy impact value, as well as tensile strength.