Preparation and fracture behavior of carbon fiber SiC composites by multiple impregnation and pyrolysis of polycarbosilane
文献类型：期刊论文
| 作者 | G. B. Zheng ; H. Sano ; Y. Uchiyama ; K. Kobayashi ; K. Suzuki ; H. M. Cheng |
| 刊名 | Journal of the Ceramic Society of Japan
 |
| 出版日期 | 1998 |
| 卷号 | 106期号:12页码:1155-1161 |
| 关键词 | carbon fiber silicon carbide polycarbosilane flexural strength impregnation composite matrix composites mechanical-properties repeated infiltration silicon-carbide |
| ISSN号 | 0914-5400 |
| 中文摘要 | Three types of carbon fibers, PAN-based HSCF, pitch-based HMCF with low graphitization degree, and pitch-based CF70 with high graphitization degree, were used to prepare unidirectional carbon fiber reinforced SiC composites (CF/SiC) by multiple impregnation of polycarbosilane and subsequent pyrolysis at 1200 degrees C for 5-9 times. The experimental results showed that pyrolytic product of polycarbosilane at 1200 degrees C in Na consisted of beta-SiC phase in a nearly amorphous state and impurity oxygen. The impregnation behavior of polycarbosilane for CF70/SiC was different from those of HSCF/SiC and HMCF/SiC. CF70/SiC showed a flexural strength of 700 MPa, which was markedly higher than those of HSCF/SiC and HMCF/SiC. Moreover, CF70/SiC exhibited non-catastrophic fracture behavior, whereas HSCF/SiC and HMCF/SiC showed brittle fracture behavior. Scanning electron microscope (SEM) and transmission electron microscope (TEM) observation of these composites clarified that HSCF/SiC and HMCF/SiC had a strong fiber/matrix interface bonding, whereas CF70/SiC had a weak interface bonding. It was concluded that highly graphitized CF70 was the most suitable reinforcement for the CF/SiC composite. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37899]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | G. B. Zheng,H. Sano,Y. Uchiyama,et al. Preparation and fracture behavior of carbon fiber SiC composites by multiple impregnation and pyrolysis of polycarbosilane[J]. Journal of the Ceramic Society of Japan,1998,106(12):1155-1161. |
| APA | G. B. Zheng,H. Sano,Y. Uchiyama,K. Kobayashi,K. Suzuki,&H. M. Cheng.(1998).Preparation and fracture behavior of carbon fiber SiC composites by multiple impregnation and pyrolysis of polycarbosilane.Journal of the Ceramic Society of Japan,106(12),1155-1161. |
| MLA | G. B. Zheng,et al."Preparation and fracture behavior of carbon fiber SiC composites by multiple impregnation and pyrolysis of polycarbosilane".Journal of the Ceramic Society of Japan 106.12(1998):1155-1161. |
入库方式： OAI收割
来源：金属研究所
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