Electrodynamic Plasma Thruster with Capillary-Porous Electrode

A scheme of a spacecraft thruster based on a stationary electrodynamic plasma accelerator with capillary-porous electrodes is proposed. Such electrodes are renewable and nondegradable, and the service life is limited by the supply of filler metal. High-efficiency regimes of the capillary-porous elec...

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Published in:Technical physics 2021-11, Vol.66 (11), p.1241-1246
Main Authors: Martynenko, Yu. V., Nagel’, M. Yu
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
Electrodes
Filler metals
Physics
Physics and Astronomy
Service life
Specific impulse
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description A scheme of a spacecraft thruster based on a stationary electrodynamic plasma accelerator with capillary-porous electrodes is proposed. Such electrodes are renewable and nondegradable, and the service life is limited by the supply of filler metal. High-efficiency regimes of the capillary-porous electrodes are determined. In such regimes, the accelerator can give a thrust of greater than 10 N and a specific impulse of several tens of kilometers per second. Li, Sn, and Ga with porous molybdenum or tungsten mats can be used as filler metal for capillary-porous electrodes.
doi_str_mv 10.1134/S1063784221090115
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subjects Classical and Continuum Physics
Electrodes
Filler metals
Physics
Physics and Astronomy
Service life
Specific impulse
title Electrodynamic Plasma Thruster with Capillary-Porous Electrode
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