The Effect of a Coating on the Thermo-Oxidative Stability of Celion 6000 Graphite Fiber/PMR 15 Polyimide Composites

The thermo-oxidative stability in air at 316°C of unidirectional uncoated and aluminum coated Celion 6000 graphite fiber/PMR 15 polyimide composites has been determined for exposure times up to nominally 2000 h. Comparison of the weight loss data and microstructural integrity reveals that a thin alu...

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Bibliographic Details
Published in:Journal of composites technology & research 1983-12, Vol.5 (4), p.109-114
Main Authors: Hurwitz, FI, Whittenberger, JD
Format: Article
Language:English
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Summary:The thermo-oxidative stability in air at 316°C of unidirectional uncoated and aluminum coated Celion 6000 graphite fiber/PMR 15 polyimide composites has been determined for exposure times up to nominally 2000 h. Comparison of the weight loss data and microstructural integrity reveals that a thin aluminum-foil coating can provide significant protection from oxidation. A quantitative description of the average depth of the reaction zone and the maximum length of cracks produced during oxidation as a function of time in uncoated Celion 6000/PMR 15 are given.
ISSN:0884-6804
1945-7537
DOI:10.1520/CTR10808J