| Project/Area Number |
23656539
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Aerospace engineering
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| Research Institution | Kobe University |
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Principal Investigator |
TAGAWA Masahito 神戸大学, 大学院・工学研究科, 准教授 (10216806)
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| Co-Investigator(Kenkyū-buntansha) |
YOKOTA Kumiko 神戸大学, 大学院・工学研究科, 助手 (20252794)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 構造・材料 / 超低軌道惑星軌道環境 / 宇宙環境 / 不活性分子 / 材料劣化 / 原子状酸素 |
|---|
| Research Abstract |
The possibility of materials erosion induced by heavy inert molecules in space environment was investigated. It was found that the 9 eV N2beam, which is the similar condition in space, was difficult to duplicate inthe laser-detonation facility due todissociation reaction of N2. The heavy inert gas collision in space was successfully simulated by Ar beam with collision energy of 9 eV. The mass-loss of fluoropolymer due to Ar beam exposure was clearlyobserved whereas polyimide did not erode at all. The presence of the heavy inert gas collision-induced erosion was identified and, thus, the necessity of consideration on the material loss of fluoropolymers in super-low altitude region was addressed.
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