Study on the In Situ Growth of Carbon Nanotubes for the Reinforcement of Cf/SiC Composite Fabricated by CVI+PIP Process
| Autor: | Xiang Yu Zhang, Bin Wu, Zhen Wang, Ping He, Shao Ming Dong, Jian Bao Hu, Haijun Zhou |
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| Rok vydání: | 2013 |
| Předmět: |
chemistry.chemical_classification
Materials science Mechanical Engineering Composite number Polymer Chemical vapor deposition Carbon nanotube Condensed Matter Physics law.invention Fracture toughness chemistry Flexural strength Mechanics of Materials law Volume fraction General Materials Science Fiber Composite material |
| Zdroj: | Materials Science Forum. :582-586 |
| ISSN: | 1662-9752 |
| Popis: | Cf/SiC composites were fabricated through in situ growth of carbon nanotubes (CNTs) on three-dimensional needle-punched carbon fabric via chemical vapor deposition and polymer impregnation and pyrolysis process. The mechanical and thermal properties of the composites were investigated. The flexural strength and fracture toughness were decreased due to the fiber volume fraction loss and much shorter pull-out length of fibers which was caused by the higher interfacial bonding strength between fiber and matrix after the growth of CNTs. Brittle fracture character of CNTs was observed due to the strong interfacial bonding strength between CNTs and matrix. The parallel thermal conductivity and perpendicular thermal conductivity were improved to 14.5% and 8.0% respectively. |
| Databáze: | OpenAIRE |
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