SiC nanowire reinforced carbon/carbon composites with improved interlaminar strength
作者： Shen Qingliang , Li Hejun , Li Lu , Li Yunyu , Fu Qiangang
DOI: 10.1016/J.MSEA.2015.10.114
关键词: Shear (sheet metal) 、 Microstructure 、 Shear stress 、 Nanowire 、 Coaxial 、 Composite material 、 Materials science 、 Reinforced carbon–carbon 、 Crystallite 、 Chemical vapor infiltration
摘要: Abstract SiC nanowires with surface dentations were in-situ grown on carbon fiber cloths and then they stacked to form 2D preform. After that, the preform was densified via chemical vapor infiltration prepare nanowire reinforced carbon/carbon (SiCNW-C/C) composites. Introduced significantly change crystallite orientations of pyrocarbon matrix. Coaxial higher optical activity larger size has been deposited around nanowires. The interlaminar shear strength SiCNW-C/C composites increases by 32% compared baseline. increase could be ascribed a synergistic effect SiCNWs coaxial interlayer. construct nanoscale mechanical interlocking matrix improve load transfer efficiency. Besides, interlayer helps deflecting cracks out basal plane under stress.
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