Longbin LI, Yudong XUE, Jianbao HU, Jinshan YANG, Xiangyu ZHANG, Shaoming DONG. Influence of SiC Nanowires on the Damage Evolution of SiCf/SiC Composites [J]. Journal of Inorganic Materials, 2021, 36(10): 1111
- Journal of Inorganic Materials
- Vol. 36, Issue 10, 1111 (2021)
. Schematic figure of three-point test within-situ AE monitoring system
. Typical SEM images of (a, b) as-grown SiCnw, (c) BN-coated SiCnw, and typical SEM images demonstrating the pore size of (d) SiCf/SiC and (e) SiCf/SiC-SiCnw composites
. SEM fractural morphologies of (a) as-grown SiCnw, (b, c) BN-coated SiCnw in composites Local parts marked by white rectangular borders demonstrating that SiCnw tends to break (a) or pull out (b, c)
. Fracture morphologies of composite (a) SiCf/SiC, (b) SiCf/SiC-SiCnw and (c) SiCf/SiC-SiCnw/BN The images demonstrating the pull-out length of fibers
. Representative normalized cumulative AE energy curves as a function of stress (a) for composite SiCf/SiC (orange), SiCf/SiC-SiCnw (black) and SiCf/SiC-SiCnw/BN (blue)
. Typical stress-strain curves of SiCf/SiC(orange), SiCf/SiC-SiCnw (black) and SiCf/SiC-SiCnw/BN (blue)
. Scatter diagrams of the energy of individual AE events as a function of time in composites (a) SiCf/SiC, (b) SiCf/SiC-SiCnw, and (c) SiCf/SiC-SiCnw/BN
. SEM micrographs of crack propagation around the indentation in composites (a) SiCf/SiC; (b) SiCf/SiC-SiCnw; (c) SiCf/SiC-SiCnw/BN
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Table 1.
Density and porosity of different composites
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Table 2.
Properties of original composites, as-grown and BN-coated hierarchical composites
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