The use of injection molding technology for the fabrication of near-net-shape silicon nitride turbine components has been demonstrated in a number of rotor and blade configurations. The current emphasis at GTE Laboratories is to refine the process, bringing it to a level of durability and reproducibility sufficient for production needs. Progress in injection molding technology development will be described with emphasis on the flow and mechanical property requirements for forming flaw-free green components. Application of the findings to the fabrication of AGT-5 axial turbine rotors and vanes under the DOE sponsored Advanced Turbine Technology Applications Project will be reviewed.

Volume Subject Area:
Microturbines and Small Turbomachinery
Topics:
Injection molding, Silicon nitride ceramics, Turbine components, Manufacturing, Rotors, Turbines, Blades, Durability, Flow (Dynamics), Mechanical properties, Shapes, Technology development
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