タイトル | ファセット的セル状結晶成長機構の研究(FACET)概要報告 |
その他のタイトル | Brief Report of Investigation on Mechanism of Faceted Cellular Array Growth (FACET) |
DOI | info:doi/10.15011/jasma.31.3.106 |
著者(日) | 稲富, 裕光 |
著者(英) | Inatomi, Yuko |
著者所属(日) | 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS) |
著者所属(英) | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS) |
発行日 | 2014 |
発行機関など | 日本マイクログラビティ応用学会 Japan Society of Microgravity Application |
刊行物名 | International Journal of Microgravity Science and Application (IJMSA) |
巻 | 31 |
号 | 3 |
開始ページ | 106 |
終了ページ | 114 |
刊行年月日 | 2014 |
言語 | jpn eng |
抄録 | The microgravity experiment mission FACET (Investigation on Mechanism of Faceted Cellular Array Growth) was carried out under long duration microgravity on the International Space Station (ISS) in 2010. FACET aimed to clarify the mechanism of a faceted cellular array growth by precisely observing the phenomena at the solid/liquid interface. Phenyl salicylate / tertiary butyl alcohol alloy was used as a sample material instead of semiconductors or oxides. The crystal growth processes were visualized in situ using a microscope and an interferometer, especially focusing on changes in temperature and concentration in the sample. The temperature and concentration distributions in the melt during the growth were precisely measured with high spatial resolution. Negative temperature gradient as well as negative concentration gradient ahead of the S/L interface can be expected to be the driving forces of the morphological instability. It is evident that the conventional model based on the frozen temperature approximation is insufficient to explain the growth mechanism of the faceted cellular array. |
内容記述 | 形態: カラー図版あり Physical characteristics: Original contains color illustrations |
キーワード | Faceted cellular array growth; Microgravity experiment; Kibo; ISS; Interferometric analysis; Temperature and concentration fields; Breakdown |
資料種別 | Journal Article |
NASA分類 | Solid-State Physics |
ISSN | 0915-3616 |
NCID | AN10537663 |
SHI-NO | AA1440111000 |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/17104 |