This invention relates to the production of high elastic modulus, high strength, corrosion-resistant oxynitride glass fibers for improved fiber-reinforced composites. The incorporation of nitrogen into silicon-yttrium-aluminum oxide glasses enhances the properties of bulk glass. This invention is the...http://www.google.com/patents/US4609631?utm_source=gb-gplus-sharePatent US4609631 - Oxynitride glass fibers
