Microstructure analysis of carbon–carbon preform

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.

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Correspondence to Zhenyi Liu.

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Liu, Z., Zhang, G., Sun, J. et al. Microstructure analysis of carbon–carbon preform. Journal of Materials Research 19, 2124–2130 (2004). https://doi.org/10.1557/JMR.2004.0271

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