| Experiment of Hall thruster plume effects on different ground experimental conditions |
| |
| 作者姓名： | SU Yang CAI Guobiao HE Bijiao SHANG Shengfei LIU Peng LIANG Wei |
| |
| 作者单位： | 1.School of Astronautics,Beijing University of Aeronautics and Astronautics,Beijing 100191,China |
| |
| 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.
|
| 关 键 词： | vacuum exhaust plume sputtering effect deposition effect Hall thruster HET-40 |
| 收稿时间： | 2018/11/29 0:00:00 |
Experiment of Hall thruster plume effects on different ground experimental conditions |
| |
| SU Yang,CAI Guobiao,HE Bijiao,SHANG Shengfei,LIU Peng,LIANG Wei.Experiment of Hall thruster plume effects on different ground experimental conditions[J].Journal of Aerospace Power,2019,34(7):1568-1576. |
| |
| Authors: | SU Yang CAI Guobiao HE Bijiao SHANG Shengfei LIU Peng LIANG Wei |
| |
| Institution: | 1.School of Astronautics,Beijing University of Aeronautics and Astronautics,Beijing 100191,China2.Science and Technology on Reliability and Environmental Engineering Laboratory,Beijing Institute of Spacecraft Environment Engineering,China Aerospace Science and Technology Corporation,Beijing 100094,China3.Electric Propulsion Department,Shanghai Institute of Space Propulsion,China Aerospace Science and Technology Corporation,Shanghai 201112,China |
| |
| Abstract: | 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. |
| |
| Keywords: | |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
|
