2012 Fiscal Year Final Research Report
Risk evaluation of chemical degradation of materials by high-velocity collision with inert gas molecules in upper atmosphere
| 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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| Keywords | 構造・材料 / 超低軌道惑星軌道環境 |
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| 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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[Book] 宇宙機のシステム熱設計2011
Author(s)
金森康郎、増本博光監修、大西晃、杉田寛之
Total Pages
344(14-40,181-232)
Publisher
田川雅人編集、分担執筆および編集.青葉堂
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