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Single Crystal Oxide Fibers: EFG Processing of Optical, Piezoelectric and Structural Materials

Advanced Crystal Products Corporation

Woburn, MA

Computer controlled Edge Defined Film Fed Growth (EFG) Crystal Furnace-Puller for processing single crystal continuous fibers of various functional and structural oxides

• Designed & developed computer controlled EFG Furnace- Puller with data acquisition capability for single and multiple growth of oxide fibers
• Grew single crystal fibers of optical materials such as Lithium Niobate
• Grew single crystal fibers of piezoelectric materials such as Sodium Bismuth Titanate
• Grew single crystal (and eutectics) of Sapphire, YAG and other structural materials for use in composites
• Designed and built new hot zone capable of use in air or oxidizing atmosphere to 1600C to complement existing graphite 2300C inert atmosphere hot zones

• Sales to date – approximately $250K EFG system sold to MIT

• NASA and the Department of Defense would have interest in using this technology to process research and prototype quantities of novel functional materials
• Foster-Miller Inc., Waltham, MA, has expressed interest in a larger system for their development of innovative ceramic composites and photonic materials

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Curator: SBIR Support              6/16/05