Effect of carbonization rate on the properties of a PAN/phenolic-based carbon/carbon composite

• Published in: Carbon (New York) Vol. 43; no. 2; pp. 229 - 239
• Main Authors: Kuo, H.H., Lin, J.H. Chern, Ju, C.P.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 2005; Elsevier Science
• Subjects: A. Carbon/carbon composites; B. Carbonization; C. Scanning electron microscopy; Cross-disciplinary physics: materials science; rheology; D. Mechanical properties; Exact sciences and technology; Fullerenes and related materials; diamonds, graphite; Materials science; Physics; Specific materials; D. Mechanical properties; C. Scanning electron microscopy; B. Carbonization; A. Carbon/carbon composites; Carbonization; Composite materials; Acrylonitrile polymer; Phenolic resin; Carbon
• ISSN: 0008-6223; 1873-3891
• DOI: 10.1016/j.carbon.2004.08.024

The effect of carbonization rate in a wide range (1, 100 and 1000 °C/min) on the properties of a PAN/phenolic-based carbon/carbon (C/C) composite was studied. The results indicated that the composite processed at a higher carbonization rate had a higher porosity level, more large pores and a more graphitic structure than that processed at a lower carbonization rate. After second graphitization the bending properties of composites carbonized at 1 °C/min and 1000 °C/min were comparable. The composite carbonized at 1000 °C/min had the highest fracture energy. The composite carbonized at 100 °C/min showed the worst mechanical performance among three. The large increase in carbonization rate can be beneficial to the industry from an economic point of view.