Preparation and microstructure characterizations of novel C/C-Zr(Hf)B2-Zr(Hf)C-SiC composites
文献类型：会议论文
| 作者 | Li, Jie Wen1,2; Wei, Xi1; Zhang, Wei Gang1; Ge, Min1 |
| 出版日期 | 1905-07-06 |
| 会议日期 | September 22, 2013 - September 28, 2013 |
| 会议地点 | Qingdao, China |
| 关键词 | Polysilanes - Carbon silicon carbide composites - Polymer matrix composites - Carbon carbon composites - Zirconium compounds - Preforming - Silicon carbide - Carbon fibers - Oxidation resistance - Chemical vapor infiltration - Impregnation - Nanoparticles - Ceramic materials - Hybrid composites |
| 卷号 | 788 |
| DOI | 10.4028/www.scientific.net/MSF.788.593 |
| 页码 | 593-597 |
| 英文摘要 | A series of novel C/C-Zr(Hf)B2-Zr(Hf)C-SiC composites were prepared by chemical vapor infiltration(CVI) of pyrolytic carbon and polymeric impregnation and pyrolysis (PIP) with hybrid polymeric precursors of SiC (polycarbosilane), Zr(Hf)C and Zr(Hf)B2 in carbon fiber preforms. The formed ultra-high temperature ceramics (UHTCs) matrix of SiC-ZrC-ZrB2 and SiC-HfC-HfB2 were designed to improve the oxidation resistance of carbon/carbon composite at very high temperatures above 2000掳C. The pyrolysis process of Zr(Hf)C and Zr(Hf)B2 polymeric precursors was investigated, and the results showed that the hybrid precursors could be successfully transformed into Zr(Hf)C and Zr(Hf)B2 ceramic particles with the sizes of nanometer with temperatures above 1500掳C. Furthermore, the multiscale structure of C/C-Zr(Hf)B2-Zr(Hf)C-SiC composites were also characterized, showing that the carbon fibers were covered by pyrolytic carbon, and the continuous ceramic matrix was well dispersed, formed by Zr(Hf)C and Zr(Hf)B2 nano-particles distributing homogeneously in the continuous SiC matrix. This homogeneous dispersion of composite ceramics of Zr(Hf)C and Zr(Hf)B2 with SiC plays excellent protection of C/C composites from oxidation at high temperature via formation of stable oxides coatings. 漏 (2014) Trans Tech Publications, Switzerland. |
| 资助机构 | Trans Tech Publications Ltd |
| 会议录 | 12th IUMRS International Conference on Advanced Materials, IUMRS-ICAM 2013
 |
| 学科主题 | Pyrolysis |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59392]  |
| 作者单位 | 1.State Key Laboratory of Mutiphase Complex Systems, Institute of Processing Engineering, Chinese Academy of Sciences, 1 Zhongguancun North Second Street, Beijing 100190, China 2.University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China |
| 推荐引用方式 GB/T 7714 | Li, Jie Wen,Wei, Xi,Zhang, Wei Gang,et al. Preparation and microstructure characterizations of novel C/C-Zr(Hf)B2-Zr(Hf)C-SiC composites[C]. 见:. Qingdao, China. September 22, 2013 - September 28, 2013. |
入库方式： OAI收割
来源：过程工程研究所
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