Fiber-reinforced composites
AssigneeCorning Incorporated
InventorsGeorge H. Beall, Kenneth Chyung, Mark P. Taylor
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Abstract
There is disclosed a fiber-reinforced composite having a high degree of fracture toughness and being composed of a glass-ceramic matrix reinforced with silicon carbide or graphite type fibers, the predominant crystal phase of the matrix glass-ceramic being canasite, and/or agrellite, and/or fedorite.
Claims1
A fiber-reinforced composite having a high degree of fracture toughness and being composed of a glass-ceramic matrix reinforced with silicon carbide fibers, the crystal phase of the matrix glass-ceramic being essentially completely canasite, and the matrix composition, in weight percent as calculated on an oxide basis, consisting essentially of 50-65% SiO.sub.2, 15-24% CaO, 5-9% F, 3-13% Na.sub.2 O, 3-25% K.sub.2 O, 11-22% Na.sub.2 O+K.sub.2 O, 0-3% B.sub.2 O.sub.3, 0-3% Al.sub.2 O.sub.3, and 0-8% ZrO.sub.2.
Dependencies are inferred from the claim text.