Graphite Fiber Reinforced Composites.

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Abstract:

The purpose of this project was to develop a process for inproving the interlaminar shear properties of graphite-resin composites. Various methods of treating graphite yarn and fiber surfaces to produce interactions with resin matrix materials were studied. Interlaminar shear properties of Thornel 40 graphite fiber reinforced composites have been improved at least twofold, and in some cases almost threefold, by a process wherein the fiber is heat-treated under defined conditions of time, temperature and atmosphere. The heat-treating operation on the fiber results in at least a 70-75 retention of the tensile strength of the fiber. Author, modified-PL.

Author(s):
Steingiser, Samuel ; Cass, Robert A.
Author Organization(s):
MONSANTO RESEARCH CORP DAYTON OH DAYTON LAB
Descriptive Note:
Technical rept. 1 Jun 67-31 May 68,
Pagination:
0243

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
MRC-DA-175, AFML-TR-68-357-Pt-1
Contract/Grant Number(s):
F33615-67-C-1728
Task Number(s):
734003
Project Number(s):
AF-7340
Monitor Series:
TR-68-357-Pt-1
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*AIRFRAMES, COMPOSITE MATERIALS), (*REINFORCING MATERIALS, GRAPHITE), FIBERS, PHYSICAL PROPERTIES, IMPREGNATION, PYROLYSIS, SURFACE PROPERTIES, SPINNING(INDUSTRIAL PROCESSES), EPOXY RESINS, FRACTOGRAPHY, SHEAR STRESSES, CRACK PROPAGATION, PHOTOMICROGRAPHY, MICROSTRUCTURE
Field(s)/Group(s):
Aircraft, Laminates and Composite Materials, Plastics, Mechanics
Keyword(s):
MATRIX METHODS
Report Date:
1968 Nov 01