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

J. K.R. Weber, B. Cho, A. D. Hixson, J. G. Abadie, P. C. Nordine, W. M. Kriven, B. R. Johnson, D. Zhu

Research output: Contribution to journalConference articlepeer-review


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 G Pa (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.

Original languageEnglish (US)
Pages (from-to)2543-2550
Number of pages8
JournalJournal of the European Ceramic Society
Issue number13-14
StatePublished - Oct 1999
EventProceedings of the 1998 New Developments in High Temperature Materials - Istanbul, Turkey
Duration: Aug 12 1998Aug 15 1998


  • Fibers
  • Glass fibers
  • Mullite
  • Strength
  • YAG

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry


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