摘要
Carbon fiber needling preform reinforced C/SiC composites were prepared by 'CVI + PIP' combined process. The densification efficiency, the microstructure and properties of the C/SiC composites reinforced by carbon fiber needling preform were investigated compared with 3D woven preform and pre-oxidation PAN fiber needling preform reinforced C/SiC composites. The results show that the densification efficiency of carbon fiber needling preform is higher than that of 3D woven preform. Under the same densification processing condition, the densitis of the composites reinforced with carbon fiber needling preform and pre-oxidation PAN fiber needling preform reach 2.08g/cm3 and 2.02g/cm3, respectively, while the density of the composites reinforced with 3D woven preform is merely 1.81g/cm3. The composites reinforced with carbon fiber needling perform exhibits good mechanical properties with flexural strength of 237MPa and shear strength of 26MPa, respectively.
源语言 | 英语 |
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页(从-至) | 223-228 |
页数 | 6 |
期刊 | Wuji Cailiao Xuebao/Journal of Inorganic Materials |
卷 | 23 |
期 | 2 |
DOI | |
出版状态 | 已出版 - 3月 2008 |