Abstract

This chapter reviews the results of the research into the carbon/carbon composites and the related materials. The results obtained are in five categories: the development of high quality carbon fibers, the new carbon coils and their applications, the novel material development and the control of micro-structures, the improvements in the properties of materials and the correlations between their properties and micro-structures, the fracture phenomena and mechanism, and the assessments of the micro-structures. The carbon/carbon composites consist of carbon fibers and carbon matrices. The term "carbon fibers" includes—the carbon fibers, the carbon nanotubes, and the micro-carbon coils. Carbon matrices can contain fullerenes such as C60, graphite, and composites of carbon with metals. Selected combinations of the carbon fibers with carbon matrices produce high performance carbon/carbon composites. The additions of copper and small amounts of titanium to carbon/carbon composites are effective in increasing the thermal conductivities compared with the conventional carbon/carbon composites.

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