Plastic and nonmetallic article shaping or treating: processes – Outside of mold sintering or vitrifying of shaped inorganic... – Producing fiber containing article or fiber
Reexamination Certificate
2004-12-30
2009-10-06
Tarazano, D. Larazano (Department: 1794)
Plastic and nonmetallic article shaping or treating: processes
Outside of mold sintering or vitrifying of shaped inorganic...
Producing fiber containing article or fiber
C428S293400, C428S297100, C428S297400, C428S297700, C428S294100, C264S605000, C264S642000, C501S095200
Reexamination Certificate
active
07597838
ABSTRACT:
A ceramic matrix composite with a ceramic matrix and a gradient layering of coating on ceramic fibers. The coating typically improves the performance of the composite in one direction while degrading it in another direction. For a SiC-SiC ceramic matrix composite, a BN coating is layered in a gradient fashion or in a step-wise fashion in different regions of the article comprising the ceramic. The BN coating thickness is applied over the ceramic fibers to produce varying desired physical properties by varying the coating thickness within differing regions of the composite, thereby tailoring the strength of the composite in the different regions. The coating may be applied as a single layer as a multi-layer coating to enhance the performance of the coating as the ceramic matrix is formed or infiltrated from precursor materials into a preform of the ceramic fibers.
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Carper Douglas Melton
Darkins, Jr. Toby George
Steibel James Dale
Subramanian Suresh
General Electric Company
McNees Wallace & Nurick LLC
Tarazano D. Larazano
Thompson Camie S
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