What is it about?
The performance of several ionic liquids (or liquid salts) were characterized with a single electrospray needle. Beam currents were measured for calculation of thrust, specific impulse and propulsive efficiency.
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Why is it important?
Ionic liquids have characteristics important to space applications: negligible vapor pressure and high electrical conductivity. Thus, they are an enabling propellant for electric thrusters operating at very high specific impulse (>1000 seconds). This paper reports the electrospray performance of eight ionic liquids. Depending on the ionic liquid, operation in the pure ionic regime, droplet mode and mixed ion/droplet mode were observed.
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This page is a summary of: Effect of Ionic Liquid Composition on Colloid Thruster Emission and Thrust Performance, Journal of Propulsion and Power, January 2018, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/1.b36376.
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