Claims
- 1. A fiber reinforced glass composite comprising
- (a) refractory fibers;
- (b) a carbon-containing black glass ceramic composition having the empirical formula SiCxOy wherein x ranges from about 0.5 to about 2.0 and y ranges from about 0.5 to about 3.0.
- 2. The fiber reinforced glass composite of claim 1 wherein x ranges from 0.9-1.6 and y ranges from 0.7-1.8.
- 3. The composite of claim 1 wherein said black glass ceramic composition (b) is the pyrolyzed reaction product of
- (1) a cyclosiloxane monomer having the formula ##STR3## where n is an integer from 3 to 30, R is hydrogen, and R' is an alkene of from 2 to 20 carbon atoms in which one vinyl carbon atom is directly bonded to silicon or
- (2) two or more different cyclosiloxane monomers having the formula of (1) where for at least one monomer R is hydrogen and R' is an alkyl group having from 1 to 20 carbon atoms and for the other monomers R is an alkene from about 2 to about 20 carbon atoms in which one vinyl carbon is directly bonded to silicon and R' is an alkyl group of from 1 to about 20 carbon atoms, said reaction taking place in the presence of an effective amount of hydrosilylation catalyst.
- 4. The fiber reinforced glass composite of claim 1 wherein the refractory fibers are at least one of said fibers selected from the group consisting of boron, silicon carbide, graphite, quartz, silica, S-glass, E-glass, alumina, alumino silicate, boron nitride, silicon nitride, boron carbide, titanium boride, titanium carbide, zirconium oxide and zirconium-toughened alumina.
- 5. The fiber reinforced glass composite of claim 4 wherein said refractory fibers are silicon carbide.
- 6. The fiber reinforced glass composite of claim 4 wherein said refractory fibers are graphite.
- 7. The fiber reinforced glass composite of claim 4 wherein said refractory fibers are alumina-silica-boria.
- 8. The fiber reinforced glass composite of claim 4 wherein said refractory fibers are zirconium-toughened alumina.
- 9. The fiber reinforced glass composite of claim 3 wherein said black glass ceramic composition is the pyrolyzed reaction product of poly(vinylmethylcyclosiloxane) and poly(methyhydrocyclosiloxane).
- 10. The fiber reinforced glass composite of claim 9 wherein said poly(vinylmethylcyclosiloxane) and poly(methylhydrocyclosiloxane) are the tetramers.
- 11. The fiber reinforced glass composite of claim 3 where the hydrosilylation catalyst is platinum.
Parent Case Info
This application is a division, of application Ser. No. 07/426,820, filed Oct. 25, 1989, pending.
US Referenced Citations (9)
Foreign Referenced Citations (1)
Number |
Date |
Country |
WO9314040 |
Jul 1993 |
WOX |
Non-Patent Literature Citations (2)
Entry |
Prewo et al., Ceramic Bulletin, vol. 65, No. 2 (1986). |
U.S. Ser. No. 002,049 filed on Jan. 9, 1987 for Leung et al. |
Divisions (1)
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Number |
Date |
Country |
Parent |
426820 |
Oct 1989 |
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