Brazing of C/C composites and heat resistant alloy with interlayer metal

Abstract

If C/C composites can form the joint with the heat resistant alloy, their application would expand. But the large mismatch in CTE of C/C and that of the heat resistant alloy prevent the formation of sound joints. In this research, Ni-based brazing filler and the interlayer is applied in brazing of C/C, which will relax the residual stress in the brazing interface. The obtained brazed joint was evaluated by the shear fracture test and SEM observation of its microstructure.