Reinforced silicon carboxide composite with boron nitride coated

Details Reinforced silicon carboxide composite with boron nitride coated Reinforced silicon carboxide composite with boron nitride coated

1993-01-21

1994-10-11

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

428245, 428288, 428294, 428378, 428408, 428902, 501 11, 501 95, D03D 300, D04H 300, C04B 3502, C03C 300

Patent

active

053546024

ABSTRACT:
An improved fiber reinforced glass composite includes a boron nitride-coated refractory fiber in a matrix of a black glass ceramic having the empirical formula SiCxOy where x ranges from about 0.9 to 1.6 and y ranges from about 0.7 to 1.8. Preferably the black glass ceramic is derived from cyclosiloxane monomers containing a vinyl group attached to silicon and/or a hydride-silicon group. Graceful failure can be obtained after exposure of the composites to temperatures up to 600.degree.-700.degree. C. in air.

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