期刊
CERAMICS INTERNATIONAL
卷 40, 期 4, 页码 5191-5195出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2013.10.077
关键词
Silicon carbide nanowires; C/SiC composites; Polymer impregnation and pyrolysis; Polycarbosilane
资金
- National Natural Science Foundation of China [51102256]
- Institute Innovation Foundation [Y12ZC2120G]
Hexagonal-shaped SiC nanowires were in situ formed in C/SiC composites with ferrocene as catalyst in the densification process of polymer impregnation and pyrolysis. The effect of SiC nanowires on microstructure and properties of the composites were studied. The results show that the in situ formed SiC nanowires were hexagonal, mostly with diamer of about 250 nm, and grew by the vapor-liquid-solid (VLS) mechanism. The C/SiC composite with nanowires shows higher bulk density and flexural strength than the one with no SiC nanowires, and the high temperature flexural strength behavior of C/SiC composites with SiC nanowires was evaluated. Crown Copyright (c) 2013 Published by Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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