Propellant inefficiency due to particulates in a Pulsed Plasma Thruster

Details Propellant inefficiency due to particulates in a Pulsed Plasma Thruster Propellant inefficiency due to particulates in a Pulsed Plasma Thruster

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..387..323s&link_type=abstract

Space technology and applications international forum (STAIF - 97). AIP Conference Proceedings, Volume 387, pp. 323-328 (1997).

Other

Ion And Plasma Propulsion, Plasma Diagnostic Techniques And Instrumentation, X-Ray, Mossbauer, And Other Gamma-Ray Spectroscopic Analysis Methods, Near-Field Scanning Optical Microscopes

Scientific paper

Propellant inefficiency resulting from the ejection of propellant material in particulate form is characterized in a Pulsed Plasma Thruster (PPT). Exhaust deposits are collected and analyzed using a combination of Scanning Electron Microscope (SEM), Energy Dispersive X-ray Analysis (EDAX), and microscopic imaging. Teflon particulates are observed with sizes ranging from over 100 μm down to less than 1 μm. Estimates of the mass entrained in this form show that the particulates may account for up to 30% of the total propellant mass used, indicating that methods of ameliorating this loss mechanism would result in significant improvements in the PPT thrust efficiency.

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