Endurance-test and theoretical prediction of a rare earth nanocathode for the applied field magnetoplasmadynamic thruster

doi:10.1088/2058-6272/aceac6

	Endurance-test and theoretical prediction of a rare earth nanocathode for the applied field magnetoplasmadynamic thruster
	Wang, Ge 3; Li, Yong 3; Zhou, Cheng 3; Wei, Yanming 3; Kong, Chuncai 2; Zheng, Xuecheng 2; Zhang, Xinwei 2; Yang, Zhimao 2; Zheng, Jinxing 1; Cong, Yuntian 3
刊名	PLASMA SCIENCE & TECHNOLOGY
	2023-10-01
卷号	25
关键词	magnetoplasma dynamic thruster nano-oxide cathode ablation models
ISSN号	1009-0630
DOI	10.1088/2058-6272/aceac6
通讯作者	Li, Yong(liyongaay@163.com)
英文摘要	The erosion loss of cathode is essential for the lifetime of magnetoplasmadynamic thruster (MPDT). In this work, an endurance test system for MPDT cathodes was designed and developed, and the erosion characteristics, erosion rate and erosion mechanism of the cathode were studied using the system under vacuum condition. The WCe20 hollow cathode was selected to carry out the long-term erosion of 540 h with the argon propellant supply flow rate of 40 ml min-1, the input current of 25 A, and the central magnetic field intensity of 96 Gs. In order to predict the theoretical service life of cathode, a steady state erosion numerical model was established. The calculation results show that the total erosion rate of sputtering and evaporation is 11.58 mg h-1, which is slightly smaller than the test data of the average cathode corrosion rate of 12.70 mg h-1 in the experiment, because the experimental value includes start-up erosion rate.
WOS关键词	PERFORMANCE
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001084639600001
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/133330]
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Yong
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 2.Xi An Jiao Tong Univ, Sch Phys, Shaanxi Prov Key Lab Adv Funct Mat & Mesoscop Phys, Minist Educ,Key Lab Nonequilibrium Synth & Modulat, Xian 710049, Peoples R China 3.Beijing Inst Control Engn, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ge,Li, Yong,Zhou, Cheng,et al. Endurance-test and theoretical prediction of a rare earth nanocathode for the applied field magnetoplasmadynamic thruster[J]. PLASMA SCIENCE & TECHNOLOGY,2023,25.
APA	Wang, Ge.,Li, Yong.,Zhou, Cheng.,Wei, Yanming.,Kong, Chuncai.,...&Wang, Baojun.(2023).Endurance-test and theoretical prediction of a rare earth nanocathode for the applied field magnetoplasmadynamic thruster.PLASMA SCIENCE & TECHNOLOGY,25.
MLA	Wang, Ge,et al."Endurance-test and theoretical prediction of a rare earth nanocathode for the applied field magnetoplasmadynamic thruster".PLASMA SCIENCE & TECHNOLOGY 25(2023).