Characterization of carbon-carbon composites—I: Textural and microstructural properties
✍ Scribed by P. Ehrburger; J. Lahaye; C. Bourgeois
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 932 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0008-6223
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✦ Synopsis
Carbon-carbon composites made from ex-acrylic fibers and pyrocarbon matrices have been characterized by optical and electron microscopy. Different types of pyrocarbon compose the carbon matrix. Upon heat treatment of the composite, the isotropic texture undergoes some reorganisation particularly in the vicinity of curved interfaces.
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The processing-structure-properties relationship of two-dimensional carbon/carbon (C/C) during the chemical vapor infiltration (CVI) process was investigated. The weight gain, density, porosity, flexural strength and flexural modulus of C/C composites were measured as a function of CVI processing ti
The work-of-fracture (ywOF) of carbon-carbon composites was measured for composites with 3-D woven fiber preforms, carbon felts, and chopped fibers. Maximum values were observed for the 3-D preforms and minimum values for the carbon felts. The values are also compared with similar data for graphites