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SU Yang,CAI Guobiao,HE Bijiao,SHANG Shengfei,LIU Peng,LIANG Wei.Experiment of Hall thruster plume effects on different ground experimental conditions[J].航空动力学报,2019,34(7):1568~1576
Experiment of Hall thruster plume effects on different ground experimental conditions
投稿时间:2018-11-29  
DOI:10.13224/j.cnki.jasp.2019.07.018
中文关键词:  vacuum exhaust plume  sputtering effect  deposition effect  Hall thruster  HET-40
英文关键词:
基金项目:
作者单位
SU Yang School of Astronautics,Beijing University of Aeronautics and Astronautics,Beijing 100191,China 
CAI Guobiao School of Astronautics,Beijing University of Aeronautics and Astronautics,Beijing 100191,China 
HE Bijiao School of Astronautics,Beijing University of Aeronautics and Astronautics,Beijing 100191,China 
SHANG Shengfei Science and Technology on Reliability and Environmental Engineering Laboratory,Beijing Institute of Spacecraft Environment Engineering,China Aerospace Science and Technology Corporation,Beijing 100094,China 
LIU Peng Electric Propulsion Department,Shanghai Institute of Space Propulsion,China Aerospace Science and Technology Corporation,Shanghai 201112,China 
LIANG Wei Electric Propulsion Department,Shanghai Institute of Space Propulsion,China Aerospace Science and Technology Corporation,Shanghai 201112,China 
摘要点击次数: 175
全文下载次数: 166
中文摘要:
      Reducing the influence of back-sputtering effect can effectively improve the accuracy of the measurement of the Hall thruster plume effect. Quartz crystal microbalance (QCM) was used to measure the deposition and sputtering distribution of HET-40 thruster plume on two different experimental conditions: case 1, using liquid nitrogen heat sinks and case 2, without using liquid nitrogen heat sinks. Meanwhile, X-ray photoelectron spectroscopy (XPS) was used to analyze the composition of the QCM surface after two experiments. The results of the two experiments showed that the sputtering rate under the condition of case 1 was slightly higher than case 2. Especially within the range of 90° to 110° relative to the thruster axis, case 1 experiment result showed sputtering effect, while case 2 experiment showed deposition effect. Through analysis of the experimental results, it can be found that using liquid nitrogen heat sink to reduce the temperature of the inner wall surface of vacuum chamber can effectively adsorb the particles sputtered by the plume and reduce the concentration of back-sputtering particles, leading to the above phenomenon.
英文摘要:
      
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