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Graphitization treatment and mechanical failure behavior of carbon/carbon composites

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1 Author(s)
Wan-chang Sun ; School of Materials Science and Engineering Xi'an University of Science and Technology, China

2D-C/C composites fabricated by rapid densification process-Chemical Liquid-Vaporized Infiltration (CLVI) were heat treated at various high temperatures. And then the mechanism and factors affecting the mechanical properties and fracture modes before and after graphitization were analyzed. Results show that after graphitization, the flexural strength decreases, and the fracture behavior changes from a brittle type of failure to pseudoplastic type, while the interlaminar shear strength increases significantly, but the value of ILSS tends to decrease as increasing heat treatment temperature, and the fracture failure displays larger plastic behavior. The interfacial bonding strength plays an important role in the mechanical behavior.

Published in:

Mechanic Automation and Control Engineering (MACE), 2010 International Conference on

Date of Conference:

26-28 June 2010