|
|||||
|
|
Characterization of the Microstructure of Three-Dimensional-Needled Carbon/Silicon Carbide Composites |
|
| Authors: | Fang Xu Yongdong Xu Xiangkang Meng Yanfeng Chen Haiming Lu Yi Zhang Litong Zhang Laifei Cheng Shangwu Fan |
| Affiliation: | 1. National Laboratory of Solid State Microstructures, Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, People's Republic of China
National Key Laboratory of Thermostructure Composite Materials, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China;2. National Key Laboratory of Thermostructure Composite Materials, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China;3. National Laboratory of Solid State Microstructures, Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, People's Republic of China * mengxk@nju.edu.cn;4. National Laboratory of Solid State Microstructures, Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, People's Republic of China |
| Abstract: | Three-dimensional-needled, carbon-fiber-reinforced silicon carbide matrix composites (C/SiC) were prepared by a chemical vapor infiltration and reactive melt infiltration method. It was found that two kinds of SiC existed in the C/SiC composites, that is, micro-β-SiC grains within the range of 5–15 μm and nano-β-SiC grains with a size of about 100 nm. The interface of C/SiC and the distribution of SiC showed evidence for the reaction mechanism of the reactive melt infiltration process. |
| Keywords: | |