Influence of process parameters on the mechanical properties of carbon/carbon composites with pitch as matrix precursor
- Book ID
- 115835972
- Publisher
- Elsevier Science
- Year
- 1981
- Weight
- 102 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0010-4361
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Unidirectional (UD) composites, fabricated with surface-oxidized HT carbon fibers (Magnamite AS4, Hercules) and with two mesogenic pitches and two mesophase pitches, were stabilized at 1 MPa oxygen pressure and 200Β°C to various amounts of oxygen uptake, carbonized and graphitization-treated at 2100Β°
Carbon-carbon composites have been made using PAN-and pitch-based carbon fibers as reinforcement, and the carbon matrix has been derived from phenolic resin (R) and coal tar pitch (P) and a mixture of the two. The temperature of initiation of oxidation in the case of carbonized composites is about l
of fiber modulus. The constants C,, and Cs6 show difference between composites containing carbonized fibers and those containing graphitized fibers; these differences are not related to fiber Young's modulus or preferred orientation. ## 44. Carbon-fiber thermal insulation Z. L. Ardary and C. W. Re