Department of Materials and Biological Science, Ibaraki University
Department of Earth and Planetary Science, Faculty of Science, Kyushu University
IHI
Institute of Aerospace Technology, Japan Aerospace Exploration Agency (JAXA)
Institute of Aerospace Technology, Japan Aerospace Exploration Agency (JAXA)
Institute of Aerospace Technology, Japan Aerospace Exploration Agency (JAXA)
出版者
宇宙航空研究開発機構
出版者（英）
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構特別資料
雑誌名(英)
JAXA Special Publication: Proceedings of International Symposium on "SM/MPAC & SEED Experiment"
巻
JAXA-SP-08-015E
ページ
59 - 66
発行年
2009-03-31
会議概要（会議名, 開催地, 会期, 主催者等）（英）
International Symposium on "SM/MPAC & SEED Experiment" (International Congress Center EPOCHAL TSUKUBA, 10-11 March 2008)
抄録（英）
Silica aerogel was equipped on the SM/MPAC (Service Module/Micro-Particle Capturer) to collect both artificial and natural fine-grained particles on the orbit of International Space Station (ISS). We performed initial investigation of the silica aerogel tiles retrieved in 2002, 2004, and 2005. Scanning electron microscope (SEM) observation of the surfaces of the RAM facing tiles revealed that those retrieved in 2004 and 2005 are covered by considerable craters. Each bottom of crater has a wrinkled area. Based on the comparison between them and the surface morphology of silica aerogel reacted with a droplet of ethanol, that these craters were probably formed by low speed impact of liquid droplets. On the surfaces of the WAKE facing tiles, number density of craters is lower than that the RAM facing aerogel. However, their depth/crater diameter ratios are larger than those facing to the RAM direction. We investigated three terminal particles found on the ends of tracks in silica aerogel, retrieved in 2002, 2004, and 2005. Combined SEM, transmission electron microscope (TEM), micro Raman spectroscopy, and synchrotron radiation X-ray diffraction analyses revealed that they are space debris, secondary debris, and a micrometeoroid, respectively.
内容記述（英）
Physical characteristics: Original contains color illustrations
Initial investigation of silica aerogel equipped on SM/MPAC & SEED recovered from the ISS in 2002, 2004, and 2005
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