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LaRC-160 fabrication developmentThe scope and status of the fabrication development program on the third candidate graphite/polyimide material, utilizing the LARC-160 polyimide system is reported. The results of initial chemical characterization studies on resin monomer constituents and intermediate esters are discussed, in particular, the problem of identifying the nadic ester endcapper material and establishing specifications to ensure material reproducibility. Progress on the process development task, including prestaging, cure, and postcure studies on flat laminates is reported. In addition, the design and processing of hat and "I" section stiffeners is reviewed. Initial efforts on the development of standards for nondestructive C-scan inspection for the various types of structures are discussed. The approach to qualifying the developed processes is outlined along with other ancillary studies in progress.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Leahy, J. D.
(Rockwell International Corp. Downey, CA, United States)
Date Acquired
August 9, 2013
Publication Date
August 1, 1979
Publication Information
Publication: NASA. Langley Res. Center Graphite(Polyimide Composites
Subject Category
Composite Materials
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.

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