Abstract
Thermal and mechanical properties of SiC-particle/Al2O3 composite produced by direct metal oxidation process were investigated. The composite shows similar level of bending strength (537MPa) and fracture toughness (4.8MPa√m) comparing to monolith alumina and SiC. On the other hand heat absorption at 578°C caused by Al-Si eutectic and exothermal peak at 960°-1140°C resulted from AlN formation were detected by PTA in N2. Therefore, residual metallic phase from starting metal alloy influences the microstructure and properties of composite at elevated temperature.
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