Fabrication In-Situ SiC Nanowires/SiC Matrix Composite by Chemical Vapor Infiltration Process

ArticleinMaterials Letters 58(25):3145-3148 · October 2004with58 Reads
Impact Factor: 2.49 · DOI: 10.1016/j.matlet.2004.05.059


    A SiC nanowires-reinforced SiC matrix composite was fabricated using chemical vapour infiltration (CVI) process. SiC nanowires with thin carbon coating were grown directly in a fibrous preform prior to the CVI matrix densification. The nanowires consist of single crystal β phase SiC and uniform carbon shell coating of ∼5 nm, with diameters of several tens to 100 nm. The volume fraction of the nanowires in the fabricated composite is ∼5%. Contributions of the nanowires to the mechanical properties of the composite are expected.