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A novel technique is proposed for fabricating 3D interpenetrating SiC/Al composites by pressure infiltration of molten aluminum into porous SiC ceramic utilizing a pulse electric current sintering method. The porous SiC ceramics was prepared by low temperature sintering at 850°C using glass bonding materials. Then, the porous SiC ceramic preform “sandwiched” between two aluminum discs was sintered...
Cf/ZrB2-SiC/ZrC composites were prepared by hot pressing of carbon fibre (Cf) cloth, ZrB2, polycarbosilane (PCS) and Zr metal at 4MPa and 1200°C. The bulk density of Cf/ZrB2-SiC/ZrC composite was improved from 2.29g/cc to 2.69g/cc as a function of PCS infiltration cycles. Microstructural investigation revealed that the SiC encapsulates the Cf and also present at grain boundaries. This resulted in...
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