Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Noninterengaged fiber-containing paper-free web or sheet...
Patent
1993-08-02
1995-11-21
Withers, James D.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Noninterengaged fiber-containing paper-free web or sheet...
428292, 428373, 428902, 428903, 501 95, 501103, 501134, D04H 100, D02G 300, C04B 3502, C04B 3548
Patent
active
054685486
ABSTRACT:
Directionally Solidified Eutectic Reinforcing Fibers
Eutectic reinforcing fibers for high temperature composites include eutectic mixtures such as Al.sub.2 O.sub.3 --Y.sub.2 O.sub.3, Cr.sub.2 O.sub.3 --SiO.sub.2, MgO--Y.sub.2 O.sub.3, CaO--NiO, and CaO--MgO. The fibers may be made by several solidification processes. The edge defined film fed growth process (EFG), however, may be especially appropriate. In this process, a seed having a known composition contacts the surface of a eutectic melt in a crucible and forms a molten film. In the present invention, the composition of the seed may be equal to the composition of the eutectic melt. As the seed is pulled upward, the molten film solidifies to form a eutectic fiber. Directional solidification occurs toward the melt.
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"Mechanical and Microstructural Characterization of Directionally-Solidified Alumina-Zirconia Eutectic Fibers", In Situ Compos. Proc. Symp., Meeting Date 1993.
"Controlling Microstructures in ZrO.sub.2 (Y.sub.2 O.sub.3)-Al.sub.2 O.sub.3 Eutectic Fibers", Haggerty et al., Cer. Eng. & Science Proc., Jul.-Aug. 1993.
"Processing, Microstructures, And Properties of Al.sub.2 O.sub.3 -Y.sub.3 Al.sub.5 O.sub.12 (YAG) Eutectic Fibers", Mak et al., Cer. Eng. & Science Proc., Jul.-Aug. 1993.
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Notice of paper presented at The 17th Conference on Metal Matrix Carbon and Ceramic Matrix Composites, Cocoa Beach Florida, on 13 Jan. 1993 entitled "(C-73-93F) Processing, Microstructures, and Properties of Al.sub.2 O.sub.3 Al.sub.5 O.sub.12 (YAG) Eutectic Fibers" by T. Mah, T. A. Parthasarathy, and M. D. Petry, UES, Inc., Dayton, Ohio; and L. E. Matson, Materials Directorate, Wright Laboratory, Wright-Patterson AFB, Ohio (copy of paper not available).
Giamei Anthony F.
Thompson Earl R.
Romanik George J.
United Technologies Corporation
Withers James D.
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