Abstract
Ceramic Matrix Composites (CMCs) are advanced materials used for high tech applications. Polymer Infiltration and Pyrolysis (PIP) route is a versatile route for the fabrication of CMCs, but the inherent volume shrinkage and porosity in the polymer-derived ceramic (PDC) matrix makes the PIP route unattractive. Carbon fibre reinforced silicon boron oxy-carbide (Cf/SiBOC) CMCs were fabricated via the PIP process using titanium silicide (TiSi2) active filler. This study details the effect of TiSi2 and different interphase materials, pyrocarbon (PyC) & boron nitride (BN), on the flexural strength and oxidation resistance properties of Cf/SiBOC CMCs. From the present study, it was concluded that the presence of an active filler and a suitable interphase material is essential for the fabrication of better CMCs in terms of oxidation resistance and flexural strength.
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