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High-Temperature Treatments For Polyimide/Graphite CompositeCombination of inert-gas heat treatment and coating with material impermeable by oxygen proposed to increase thermo-oxidative and high-temperature structural stabilities of composite materials made of graphite fibers in matrices of PMR-15 polyimide. Proposal directed toward development of lightweight matrix/fiber composites for use in aircraft engines, wherein composites exposed to maximum operating temperatures between 371 and 427 degrees C.
Document ID
19920000164
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Bowles, Kenneth J. (NASA Lewis Research Center, Cleveland, OH.)
Lowell, Carl (NASA Lewis Research Center, Cleveland, OH.)
Date Acquired
August 15, 2013
Publication Date
March 1, 1992
Publication Information
Publication: NASA Tech Briefs
Volume: 16
Issue: 3
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
LEW-14734
Accession Number
92B10164
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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