| 摘要 |
RD-17,455 SILICON-OXY-CARBIDE GLASS AND ARTICLES Methyl-silicone resins are pyrolized in a non-oxi-dizing atmosphere to form a glass comprised of silicon, oxygen and carbon in a mass of silicon-oxy-carbide glass, wherein about 52 to 66 percent of the silicon atoms are bonded to at least one carbon atom, and about 3 to 9 weight percent carbon is dispersed atomically or in small clusters within the glass matrix. The silicon-oxy-carbide glasses of this invention resist devitrification and decomposition in oxidizing or reducing atmospheres at temperatures up to at least 1650.degree.C. Methods for forming silicon-oxy-carbide glass articles are disclosed, along with specific methods for forming silicon-oxy-carbide glass fibres and composites.
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