Jing RUAN, Jinshan YANG, Jingyi YAN, Xiao YOU, Mengmeng WANG, Jianbao HU, Xiangyu ZHANG, Yusheng DING, Shaoming DONG. Porous SiC Ceramic Matrix Composite Reinforced by SiC Nanowires with High Strength and Low Thermal Conductivity [J]. Journal of Inorganic Materials, 2022, 37(4): 459
- Journal of Inorganic Materials
- Vol. 37, Issue 4, 459 (2022)
1. Surface morphologies of the SiCNWs/PVA film (a), SiCNWs network without PyC and SiC deposition (b), surface morphologies of sample without (c) and with (d) PyC interphase after short time CVI process, and without (e) and with (f) PyC interphase after a long time CVI process
2. Growth morphology of SiC matrix CVI deposited at temperatures of (a) 950 ℃, (b) 1030 ℃, and (c) 1100 ℃
3. SEM images of the prepared SiCNWs/SiC ceramic matrix composites(a) External surface view of the sample under 8 h CVI process at 1030 ℃; (b) Fracture surface view and (c) corresponding enlarged region of the sample under 8 h CVI process at 1030 ℃; (d) External surface view of the sample under 8 h CVI process at 1100 ℃; (e) Fracture surface view and (f) corresponding enlarged region of the sample under 8 h CVI process at 1100 ℃
4. Cumulative pore volume distribution with different pore size
5. Changes of strength and thermal conductivity with porosity of porous SiCNWs/SiC ceramic matrix composite
6. Biaxial bending strength of the SiCNWs/SiC ceramic matrix composite with or without PyC interphase
7. Fracture morphologies of the SiCNWs/SiC ceramic matrix composite(a) Without interphase; (b) With PyC interphase
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Table 1.
Strength and thermal conductivity of different materials
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