Growth and crystallization of YAG- and mullite-composition glass fibers

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• 作者：Weber ; J.K.R. ; Cho ; B. ; Hixson ; A.D. ; Abadie ; J.G. ; Nordine ; P.C. ; Kriven ; W.M. ; Johnson ; B.R. ; et. al.
• 关键词：YAG ; glass fibers ; fibers ; strength ; mullite.
• 刊名：Journal of the European Ceramic Society
• 出版年：1999
• 期刊代码：53_09552219
• 类别：ms
• 出版时间：October, 1999
• 卷：19
• 期：13-14
• 页码：2543-2550
• 文件大小：1.48 M

摘要

This paper describes a new process to synthesize crystalline oxide fibers for high temperature structural applications. Strong and chemically homogeneous precursor fibers of 5–40 μm diameter were made at rates of up to 1·6 m s⁻¹ by glass fiber pulling techniques from undercooled molten oxides. The precursor fibers were heat treated at temperatures up to 1873 K to make crystalline fibers with controlled grain size and properties. Tensile strengths of the precursor fibers were up to 5–6 GPa (900 ksi) for YAG- (Y₃Al₅O₁₂) and mullite- (Al₆Si₂O₁₃) compositions. Research to optimize fiber compositions and crystallization processes, and to scale up precursor fiber production is discussed.