Abstract
Carbon foams and fibers reinforced carbon composites were prepared using chemical liquid-vaporized infiltration and pitch impregnation. The microstructure and mechanical properties of the composites were investigated. The results showed that the final density of these samples was in a range of 1.34–1.45 g/cm 3. The pores in carbon foams were filled with pyrocarbon and pitch carbon. The flexural and tensile strength of the composites increased gradually with increasing the content of carbon fibers, whereas the compressive stress went up to a maximum value of 35.9 MPa at the fiber content of 7%.
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