2011 Fiscal Year Final Research Report
Lifetime Evaluation of Electric Propulsion by Using Multilayer Coating
| Project/Area Number |
21360415
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Aerospace engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KOMURASAKI Kimiya 東京大学, 大学院・新領域創成科学研究科, 教授 (90242825)
KOIZUMI Hiroyuki 東京大学, 先端科学技術研究センター, 准教授 (40361505)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 電気推進機 / ホールスラスタ / イオンエンジン / 寿命評価 / 薄膜コーティング |
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| Research Abstract |
Whereas electric propulsions perform extremely high specific impulse compared with chemical propulsions, their lifetime performance is critically important because their low thrust. In this study, an experimental erosion measurement method and a numerical lifetime simulation model were developed towards long-life Hall thruster. As a result, real-time erosion visualization method was established by utilizing nano-meter order multilayer coating. Furthermore, plasma-wall interaction was simulated by the developed numerical code and clues toward long-life Hall thruster were obtained.
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