508materialsiii020304

508materialsiii020304 - XI. Structural Composite Systems E....

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XI. Structural Composite Systems (cont’d) E. Graphite (Thornel)-Epoxy The graphite fiber Thornel (original trade-name of Union Carbide Corporation) has often been combined with epoxy to form a structural composite. Table 17 contains the mechanical properties of T-300 Thornel fibers in 5208 epoxy resin. The unidirectional laminates were prepared from 3-inch prepreg tape.
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XI. Structural Composite Systems (Gr/E cont’d)
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XI. Structural Composite Systems (cont’d) F. Borsic-Aluminum and -Titanium Composites Silicon carbide (SiC) coated boron fibers ( Borsic ) are used to reinforce aluminum and titanium metal matrices. As with most composites, mechanical properties of Borsic fiber reinforced materials depend on relative fiber content . Table 18 shows the strength and moduli of Borsic-reinforced 6061 aluminum at 30% and 75% fiber content.
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XI. Structural Composite Systems (Borsic/Al)
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XI. Structural Composite Systems (Borsic composites) Below 1000°F, the longitudinal specific strength of reinforced aluminum composites exceeds that of most other materials. However, the strength drops
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508materialsiii020304 - XI. Structural Composite Systems E....

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