Influence of nano-SiC on the graphitization and oxidation resistance of C/C composites

ZHEN Qiang; LU Fei; SONG Shao-lei; LI Rong; ZHENG Feng

doi:10.13374/j.issn2095-9389.2017.01.011

Volume 39 Issue 1

Jan. 2017

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ZHEN Qiang, LU Fei, SONG Shao-lei, LI Rong, ZHENG Feng. Influence of nano-SiC on the graphitization and oxidation resistance of C/C composites[J]. Chinese Journal of Engineering, 2017, 39(1): 81-87. doi: 10.13374/j.issn2095-9389.2017.01.011

Citation:

ZHEN Qiang, LU Fei, SONG Shao-lei, LI Rong, ZHENG Feng. Influence of nano-SiC on the graphitization and oxidation resistance of C/C composites[J]. Chinese Journal of Engineering, 2017, 39(1): 81-87. doi: 10.13374/j.issn2095-9389.2017.01.011

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Influence of nano-SiC on the graphitization and oxidation resistance of C/C composites

doi: 10.13374/j.issn2095-9389.2017.01.011

1) Nanoscience and Technology Research Center, Shanghai University, Shanghai 200444, China
2) Material Science and Engineering, Shanghai University, Shanghai 200444, China

Received Date: 2016-03-23

Abstract

Abstract

SiC-carbon/carbon (C/C) composites were prepared by doping nano-SiC, and the influence of nano-SiC on the graphitization degree of carbon material was investigated by X-ray diffraction and high-resolution transmission electron microscopy (HRTEM). The nano-SiC can promote the graphitization degree of carbon material. An apparent graphitization structure around the nano SiC was observed by HRTEM, and the carbon material has a higher graphitization degree when it is closer to the nano-SiC. The oxidation resistance of SiC-C/C composites was also studied through static oxidation experiment. It is found that the anti-oxidation performance of C/C composites increases with increasing nano-SiC content, and the nano-SiC forms a uniform SiO₂ protective layer at high temperature, which could cover the carbon material surface to prevent the material from oxidation. In addition, the SiO₂ protective layer is thicker and has a higher oxidation resistance property when the matrix material contains more nano-SiC.
- carbon/carbon composites,
- nanoparticles,
- silicon carbide,
- graphitization,
- oxidation resistance

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References(9)

References

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