Friction and wear behaviors of C/C-SiC composites containing Ti3SiC2

► Residual silicon is harmful to friction and wear properties of C/C-SiC composites. ► The residual silicon is replaced by the in situ formed Ti3SiC2. ► The wear resistance and friction stable coefficient are improved. ► The film-like debris of Ti3SiC2 leads to the excellent wear resistance.