Ceramic Composite Combustor Cans for Expendable Turbine Engines

Ceramic matrix composite fabrication by microwave assisted chemical vapor infiltration (MWCVI) has been demonstrated as a feasible, faster, and more economical technique as compared to conventional CVI. Two deposition systems, carbon and silicon carbide, were investigated using this processing techn...

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Bibliographische Detailangaben
Hauptverfasser:	Fehrenbacher, Larry L, Hanigofsky, John A
Format:	Report
Sprache:	eng
Schlagworte:	ADVANCED COMPOSITES CARBON CERAMIC FIBERS CERAMIC MATERIALS CERAMIC MATRIX COMPOSITES Ceramics, Refractories and Glass CHEMICAL VAPOR DEPOSITION CHEMICAL VAPOR INFILTRATION COMBUSTORS COOLING AND VENTILATING EQUIPMENT DENSIFICATION FABRICATION FIBER REINFORCED COMPOSITES GAS TURBINES INFILTRATION(FLUIDS) Jet and Gas Turbine Engines Laminates and Composite Materials MICROWAVES NICALON FIBERS PE65502F SILICON CARBIDES TEMPERATURE GRADIENTS WUWL3005021G
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Beschreibung
Zusammenfassung:	Ceramic matrix composite fabrication by microwave assisted chemical vapor infiltration (MWCVI) has been demonstrated as a feasible, faster, and more economical technique as compared to conventional CVI. Two deposition systems, carbon and silicon carbide, were investigated using this processing technique. Densification rates over an order of magnitude higher have been achieved on small cylindrical Nicalon fiber preforms. Economic forecasts based on previous SiC depositionandthis Phase I work shows a significant improvement in part cost as compared to conventional CVI work. A reduction in cost of a factor of 20 has been calculated. A larger, commercial microwave system has been designed for scaled up prototype part fabrication.