Structure of Post-Creep Carbon Fibres


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Creep tests have been performed for carbon fibre bundles (Toray, HTA5131) in a temperature range from 1500 °C to 1800 °C and at various stress levels in a tensile testing machine in vacuum (pressure was kept below 10-3 mbar). Creep parameters have been obtained from the diagrams elongation versus time. X-rays (SAXS and WAXD) have been used for accompanying structural investigations. An increase in the alignment of the graphene sheets with respect to the fibre (and thus the loading) axis was observed with increasing test temperature. For fibres stabilised by heat treatment (2 hours, 2100 °C, without load) no creep and no structural change could be observed.



Edited by:

J. Dusza, R. Danzer and R. Morrell




H. Rennhofer et al., "Structure of Post-Creep Carbon Fibres", Key Engineering Materials, Vol. 290, pp. 268-271, 2005

Online since:

July 2005




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