MICROSTRUCTURE OF SiC FIBRE REINFORCED TITANIUM COMPOSITE

SiC fibre reinforced Ti-15-3 composite was prepared by vaccum hot press diffusion-bonding technique.SiC fire,Ti-15-3 matrix and composite was metallographically examined. Reaction zone of interface between fibre and matrix was observed.It is identified that home-made SiCf prepared by radio frequency heat CVD process have resonable compatibility with Ti-15-3 matrix in proper conditions.Under a condition of tension stress SiC fibre possesses a tendency to pull-out from matrix.Fracture surface of fibre appears brittle pattern and fracture surface of Ti-15-3 matrix appears ductile dimple pattern.