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Microstructure analysis of carbon–carbon preform

Published online by Cambridge University Press:  03 March 2011

Zhenyi Liu ,
Guoding Zhang ,
Jinliang Sun ,
Hong Li  and
Musu Ren
Zhenyi Liu*
Affiliation:
State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200030, People’s Republic of China
Guoding Zhang
Affiliation:
State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200030, People’s Republic of China
Jinliang Sun
Affiliation:
Composites Center, Shanghai University, Shanghai 200072, People’s Republic of China
Hong Li
Affiliation:
Composites Center, Shanghai University, Shanghai 200072, People’s Republic of China
Musu Ren
Affiliation:
Composites Center, Shanghai University, Shanghai 200072, People’s Republic of China
*
a) Address all correspondence to this author. e-mail: zhenyi_liu@hotmail.com
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Abstract

The microstructure of three kinds of porous carbon–carbon preforms prepared for carbon–carbon/aluminum composites was identified by x-ray diffraction, Raman spectroscopy, and field emission scan electronic microscope. Although manufactured at same processing conditions, including the temperature, type of organic gas, and pressure of pyrolysis, the structure of the pyrolytic carbon (Cpy) in three kinds of preforms is different. The morphology of the Cpy is influence by the topology of the preforms greatly, and the crystal structure of the Cpy is influenced by the crystal structure of the carbon fiber greatly, on which surface the Cpy was deposited. The degree of graphitization of the Cpy had been enhanced and the structure of the Cpy changed to more anisotropic form when the preforms were annealed at 2773 K.

Keywords

Composite
Type
Articles
Information
Journal of Materials Research , Volume 19 , Issue 7 , July 2004 , pp. 2124 - 2130
Copyright
Copyright © Materials Research Society 2004

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References

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