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Gibbons, D.
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document
Selective laser melting for production of a novel high temperature electrothermal propulsion system
Abstract
This paper presents the design, manufacturing and analysis of additively manufactured metal components of a novel resistojet thruster for spacecraft. The hardware includes two heat exchanger configurations with integrated nozzle and support structures. Optical analysis is used for investigation of metrology, surface characteristics and morphology. High-resolution micro Computed Tomography (CT) is used as a tool for non-destructive inspection, since the complex geometry of the thruster does not allow internal examination. The CT volume data is used to determine a surface mesh to perform coordinate measurement, nominal/actual comparison and wall thickness analysis.