Decomposition behaviour of Kevlar 49 fibres:Part I. At TTd

Iyer, RV and Vijayan, Kalyani (1999) Decomposition behaviour of Kevlar 49 fibres:Part I. At TTd. Bull. Mater. Sci.,, 22 (7). pp. 1013-1023.

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Abstract

The structural changes which accompany decomposition of Kevlar 49 fibres at T= 500xB0;C: and 550xB0;C, respectively, have been elucidated. At both these temperatures, cumulative thermal exposures of specific durations, tcum{T}, are required to result in decomposition. The conspicuous features which characterize isothermal decomposition of the fibres are: (i) progressive reduction and an eventual total loss in fibre crystallinity, (ii) progressive loss in weight, (iii) introduction of surface damages, (iv) introduction of hollowness, and (v) deterioration in tensile properties.

Item Type: Article
Additional Information: Copyright for this article belongs to Indian Academy of Sciences
Uncontrolled Keywords: Kevlar 49;Decomposition;Crystallinity;Weight loss;Hollowness; Surface damages
Subjects: CHEMISTRY AND MATERIALS > Inorganic, Organic and Physical Chemistry
Depositing User: Users 11 not found.
Date Deposited: 15 May 2006
Last Modified: 24 May 2010 04:11
URI: http://nal-ir.nal.res.in/id/eprint/1425

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