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Materials SciencesLaminates and Composite Materials

Modeling of the Sapphire Fiber Growth Process

Authors: D. G. Backman; D. Wei; L. C. Filler; R. Irwin; J. Collins; GENERAL ELECTRIC CO WEST LYNN MA
Abstract:
As a candidate reinforcement for ceramic and metal matrix composites, continuous single crystal sapphire fiber exhibits excellent high temperature properties and favorable thermal expansion characteristics. the fiber is produced using the edge defined film fed growth process wherein a crystallographically oriented fiber is drawn from a shaped meniscus of molten alumina. research is underway to characterize fluid dynamics and heat transfer withing the meniscus to predict the effect of process parameters and perturbations upon the shape and quality of the fiber. these analyses and related experimental results will be described.

Description: Journal article
Pages: 15
Report Date: 92
Report Number: D972402

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