Glass/fiber composite and a method of its manufacture

Details Glass/fiber composite and a method of its manufacture Glass/fiber composite and a method of its manufacture

1988-12-19

1990-05-22

Hearn, Brian E.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 80, 264 43, C03C 1400

Patent

active

049277901

ABSTRACT:
A composite structure including fibers embedded in a silica glass matrix is made by first forming a precursor of the structure by embedding the fibers in a matrix of a silica-based glass material which further includes a glass-forming additive that lowers the working temperature range of the material below that of pure silica glass, and by leaching the additive out of the glass matrix material. The thus obtained porous glass matrix may then be consoidated at an elevated temperature that is considerably lower than that which would be needed for manufacturing the glass matrix directly from a material having substantially the same composition as the material of the leached-out glass matrix.

REFERENCES:
patent: 3013897 (1961-12-01), Cupery et al.
patent: 4397961 (1983-08-01), Snitzer et al.
patent: 4412854 (1983-11-01), Layden
patent: 4626515 (1986-12-01), Cotyung et al.

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