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| Preparation for 2D–C/C composites with pure RL textures and its characteristic |
| HE Yonggang1; LI Kezhi1∗∗ LI Hejun1; GUO Lingjun1; ZHOU Baoping2 |
1.Northwestern Polytechnical University Carbon–Carbon Composites Research Center; Xi'an 710072
2.Jinxi Machinery Industries Group Corporation; Institute of Product Design; Taiyuan 030027 |
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Cite this article:
. Preparation for 2D–C/C composites with pure RL textures and its characteristic. Chin J Mater Res, 2009, 23(2): 138-142.
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Abstract A 2D carbon fiber preform (bulk density 0.43 g/cm3) was infiltrated by novel ICVI in temperature 1080–1200 oC, pressure 10 KPa, gas residence time 0.01 s, using natural gas as carbon source, N2 as diluent gas, and the C/C composites were obtained. The flexural strength was measured by three–point bonding tests, the microstructures of pyrocarbon matrix and the morphologies of fractured surfaces were observed by polarized light microscopy (PLM) and scanning electron microscopy (SEM). The results show that the bulk density of 2D–C/C composites manufactured in 150 h is 1.75 g/cm3, its texture is pure rough laminar, flexural strength and flexural modulus are 164.77 MPa and 21.34 GPa respectively. The fracture of C/C composites exhibits a pseudo–plastic failure behavior.
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Received: 03 June 2008
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| Fund: Supported by the Program of Introducing Talents of Discipline to Universities No.D08040. |
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