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Effect of preoxidation conditions on mechanical properties of carbon fibres

✍ Scribed by O.P. Bahl; L.M. Manocha

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
457 KB
Volume
13
Category
Article
ISSN
0008-6223

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✦ Synopsis

A detailed study of the temperature and the duration of oxidation of polyacrylonitrile fibres has been made. The importance of choosing the correct duration and temperature of preoxidation has been demonstrated. Shrinkage during carbonization versus preoxidation time was studied. An empirical method is described which can be used for the estimation of optimum preoxidation time at any temperature. By the use of oxygen instead of air for oxidation, optimum duration of oxidation has been reduced to just 5 hr as compared to 20 hr reported in the literature. The implications are discussed.

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