Wetting of Si–14Ti alloy on SiCf/SiC and C/C composites and their brazed joint at high temperatures

The wetting and joining of SiCf/SiC composites and C/C composites with a high-temperature Si–14Ti (at. %) braze filler were studied for the first time. Wetting dynamics and the contact angle were investigated by heating the Si–Ti sessile droplets on the SiCf/SiC and the C/C substrates. The interfacial micromorphology, shear strength, and fracture characteristics of the joints were all analysed. The Si–Ti alloy had contact angles of ~23° on the...