Abstract

Effects of carbon fiber on strength were studied in the carbon fiber reinforced Cu-33at%Al alloy-joint device of aluminum to copper. Although chemical reactions induced the strong bonding of interface, they decayed the strength of fine fibers, resulting in occurrence of the welding brittleness. To enhance the fracture resistance, the carbon fiber reinforced metal (CFRM) joint device was successfully developed by using a duplex-coated carbon fiber felt. The high joint strength was obtained. The carbon fiber acted as a deformation resistance by fiber-reinforced mechanics. Static and dynamic frictions at the joint interface probably prevented the pullout of fibers from matrix.

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