Author(s)

C. Mochizuki & Y. Kimura

Abstract

Carbon/Carbon (C/C) composites have superior high temperature strength in an inert atmosphere[l]. However, carbon materials have a defective property that the) can actively react with oxygen in an oxidation environment at above 500°C[1]. In this study, mechanical properties of oxidized C/C composite were investigated by 3 points bending tests. As a result, reductions of bending and shear strength were preferentially recognized in case of the specimen oxidized at 600°C companng to that oxidized at 1000°C, even when the total weight loss is almost the same. And, examinations of shear mode fracture behavior by CCD camera indicate that continuous delamination of fiber/matrix interface have been progressed. 1.Introduction Carbon fiber reinforced carbon matnx (C/C) composites consist

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