Development and Characterization of Porous-Media Borosilicate Glass Ion Sources for Electrospray Thruster

Kuan Qiao(National University of Defense Technology), Yuntian Yang(National University of Defense Technology), Xiaokang Li(National University of Defense Technology), Jianjun Wu(National University of Defense Technology), Dawei Guo(National University of Defense Technology), Mousen Cheng(National University of Defense Technology)
Unknown
July 20, 2022
10.1109/icmae56000.2022.9852852
Cited by 1

Abstract

The porous-media based electrospray thruster is a cutting edge micro propulsion technology that can revolutionize the capabilities of NanoSats. This paper reports the design, fabrication, and characterization of a porous-media borosilicate glass electrospray thruster. The picosecond infrared laser processing technique is applied to machine 81 emitters out of porous-media. Performance characteristic experiments are conducted with the thruster passively fed with ionic liquid EMI-BF4. The results reveal that the per emitter can emit up to 1.27μA at 2kV. The corresponding machine method present an opportunity to attain more controllable emitter shapes, which has a positive impact on thruster lifetime and performance improvement.

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