The fine structure of a range of pan-based carbon fibres
β Scribed by D.J. Johnson; D. Crawford; C. Oates
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 141 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0008-6223
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β¦ Synopsis
The development of fine structure in PAN-based carbon fibres prepared in the temperature range 300Β°C to 1000Β°C will be discussed in terms of X-ray and electron microscope results, including direct lattice resolution. Further evidence on high-modulus carbon fibres treated around 28OO"C, and a three-dimensional model of structure which is probably independent of the precursor material, will be included.
π SIMILAR VOLUMES
The adsorption of n-butylamine, n-butyric acid, n-butanol and 1.2 epoxy propane from n-heptane solutions onto carbon fibres (PAN) has been investigated by flow microcalorimetry. No adsorption of n-butyric acid could be detected, but the adsorption of n-butanol and 1.2 epoxy propane was reversible an
## Pyrolysis of composites prepared from a phenol-formaldehyde resin and carbon fibres (CFRC) or oxidized PAN fibres (OFRC) has been investigated up to 1270 K. Two temperature regions can be distinguished in the pyrolysis of the CFRC: below 770 K the carbon fibres hold the composite structure resi
## I51 sive wrinkling and corrugation. A disclination model seems to apply to the core of round filaments, the transitions from round to cracked structures imply disclination interactions along the length of the filament. 236. The textile prestretching of PAN-fibres as a controlling parameter for