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238. An optkal and scanning microscopy study of structure in pan carbon fibres

✍ Scribed by J.A. Griffiths; H. Marsh

Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
127 KB
Volume
20
Category
Article
ISSN
0008-6223

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✦ Synopsis

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 the mechanical properties of the resulting carbon-fibres E. Fitzer and Th. Muller (Inslitut fur Chemische Technik, Universitiit Karlsruhe, BRD). PAN-fibres, obtained from two different sources, having different polymer composition and textile stretch, were oxidized in air at 230Β°C for optimum time and subsequently carbonized. The influence of textile stretching on the necessary stabilization conditions and on the mechanical properties of the resulting carbon fibres are discussed.

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