Microstructure/Property Relationships for Carbon Fiber Reinforced Aluminum Alloys.

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Abstract:

Graphite fibers with various coatings tested for strength. Longitudinal composites were produced from the coated fibers using pure aluminum as the matrix by pressure casting. The strength and microstructure of the composites was evaluated. Longitudinal and transverse composites were also produced using uncoated graphite fibers with various alloy matrices and their strength and microstructure evaluated. The coated fibers were leached from the pure aluminum matrix and examined. The uncoated graphite fibers were leached from the alloy matrices and tested for strength. The coated fibers were not found to be stronger that the uncoated fibers, nor were they effective in increasing composite strengths. Composites produced from uncoated fibers and alloy matrices were quite strong longitudinally with strengths of up to 93 percent of rule of mixtures strength. The same material, when tested in the transverse direction exhibited low strengths, with the failure being interfacial.

Author(s):
Dixon, R. G. ; Cornie, J. A. ; Flemings, M. C.
Author Organization(s):
MASSACHUSETTS INST OF TECH CAMBRIDGE MATERIALS PROCESSING CENTER
Descriptive Note:
Final technical rept.,
Pagination:
0109

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N00017-83-K-0677
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*ALUMINUM ALLOYS, *FIBER REINFORCED COMPOSITES, *METAL MATRIX COMPOSITES, *CARBON REINFORCED COMPOSITES, FIBERS, MICROSTRUCTURE, COMPOSITE MATERIALS, GRAPHITE, CARBON FIBERS, MATRIX MATERIALS, COATINGS, PURITY, ALUMINUM, STRENGTH(GENERAL), TRANSVERSE
Field(s)/Group(s):
Laminates and Composite Materials, Properties of Metals and Alloys
Report Date:
1983 Jan 01