HIGH TEMPERATURE THERMAL AND MECHANICAL PROPERTIES OF HIGH TENSILE CARBON SINGLE FILAMENTS

摘要

The final quality of carbon/carbon composite materials depends strongly on the tight fit of the components. This could be predicted with a better knowledge of the intrinsic thermal and mechanical behavior of the carbon fibers. With this object, we have built-up an experimental set-up for in situ studying of dimensional variations and the bending strain at failure of single filaments from high tensile carbon fibers at temperature up to 2500 degrees C. We have shown off and separated the purely physical and the chemical parts of the dimensional evolution of these PAN-based filaments, in comparison to the fundamental behavior of pure graphite. Copyright (C) 1996 Elsevier Science Ltd [References: 15]