Progress in stress-relieving methodologies of ceramic matrix composites/Ni-based superalloys joints: A review

• • Ag-Cu-Ti+Sc2(WO4)3 composite filler reduced residual stress in Cf/SiC-GH3536 joints, demonstrating that negative thermal expansion materials can counteract CTE mismatch and improve joint reliability for aerospace components. • • Graphene nanoplatelets reinforced AgCuTi filler enabled brazing of metallized SiC ceramic to GH99 superalloy, with graphene nanosheets strengthened AgCuTi filler also applied to carbon/carbon composite/Ti6Al4V joints, enhancing mechanical properties through stress relief and interfacial reinforcement. • • Mo and B inserts in SiCf/SiC composites/Ni-based superalloy joints provided microstructural control and reinforcement, addressing stress concentration and improving joint integrity for high-temperature structural applications. • • WC reinforcements in CuTi composite filler for brazing Cf/SiC and GH3536 improved microstructural evolution and mechanical characteristics, indicating that carbide reinforcements can tailor interfacial reactions and mitigate residual stresses.