Nicalon-fibre-reinforced silicon-carbide composites via polymer solution infiltration and chemical vapour infiltration |
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| Authors: | Young -Wook Kim Jin -Soo Song Sang -Whan Park June -Gunn Lee |
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| Affiliation: | (1) Structural Ceramics Laboratory, Korea Institute of Science and Technology, Cheongryang, PO Box 131, Seoul, Korea |
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| Abstract: | A new, faster process was developed for the fabrication of Nicalon-fibre-reinforced SiC composites by combining polymer solution infiltration (PSI) and chemical vapour infiltration (CVI). The process led to the near-net-shape fabrication of fibre-reinforced ceramic-matrix composites and reduced infiltration time. Typical flexural strength and fracture toughness of these composites were 296 MPa and 10.9 MPa m1/2 at room temperature (RT) and 252 MPa and 9.6 MPa m1/2 at 1000 °C, respectively. The composites exhibited load-carrying capability after crack initiation. |
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