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Ceramics are the solid materials which exhibit very strong ionic bonding with partial covalent bonding. Ceramic-based matrix materials exhibits good corrosion resistance, high melting points, high compressive strength and stability at elevated temperatures and therefore can be utilized in high temperatures applications (~1500 °C) [13]. The addition of reinforcements in ceramic overcomes the problems related with high modulus of elasticity and low tensile strain to obtain strength improvement. The addition of reinforcements in adequate amount causes the ceramics to effectively transfer the load to them which reduces the possibilities of ceramics rupture at high stress levels [6]. However, this does not mean that the addition of high-strength fiber will result in strengthening a weaker ceramic. In such a case, the reinforcement possessing high modulus of elasticity can solve the problem. Usually, if the thermal expansion coefficient of ceramics is higher than reinforcement materials, the resultant composite may not be possessing good strength. In such a case, the tendency of forming microcracks while cooling increases and these microcracks extends from fiber to fiber within the matrix [9].