Carbon-carbon grid elements for ion thruster ion optics

Power plants – Reaction motor – Ion motor

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F03H 100

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055489532

ABSTRACT:
Carbon-carbon grids for ion optics sets are thermomechanically stable under the extreme temperature changes that are experienced in ion thrusters. Screen, accelerator and decelerator grids are thermomechanically stable, lightweight, and resistant to erosion from ion sputtering and have extended lifetimes over conventional molybdenum grids.

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Brophy, et al., "Ion Engine Endurance Testing At High Background Pressures", AIAA/SAE/ASME/ASEE 28th Joint Propulsion Conference and Exhibit, Jul. 6-8, 1992, Nashville, TN, AIAA-92-3205 (20 pp.).
Garner, et al., "Fabrication and Testing of Carbon-Carbon Grids for Ion Optics", AIAA/SAE/ASME/ASEE, 28th Joint Propulsion Conference and Exhibit, Jul. 6-8, 1992, Nashville, TN, AIAA-92-3149 (12 pp.).
Garner, "Carbon-Carbon Grids for Ion Engines," JPL 19174, NPO-19174-1-CU, Jul. 6, 1993 [available from NTIS or NASA].

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