In Situ Observation of Liquid-Liquid Phase Separation of Glass under Microgravity
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- MINAMI Yuji
- Center for Nano Materials and Technology, Japan Advanced Institute of Science and Technology
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- MAKISHIMA Akio
- Center for Nano Materials and Technology, Japan Advanced Institute of Science and Technology
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- TANJI Akira
- Japan Space Utilization Promotion Center
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- KONISHI Tomoya
- Advanced Materials Laboratory, National Institute for Materials Science
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- INOUE Satoru
- Advanced Materials Laboratory, National Institute for Materials Science
Bibliographic Information
- Other Title
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- 微小重力環境下におけるガラスの液-液分相のその場観察
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Abstract
We succeeded in the in situ observation of liquid-liquid phase separation of glass under microgravity at the Japan Microgravity Center (JAMIC), which provides a 10 s microgravity duration. The microgravity level is 10-5 g (g≡gravitational field at Earth's surface). We constructed an apparatus for the observation of phase separation suitable for the experimental facility. The melt of 3BaO•97B2O3 (mol%) was held as a film on a Pt wire loop. The sample was initially heated above the immiscibility temperature and held at that temperature. After the homogenization stage, the melt was cooled. Liquid-liquid phase separation of the melt was observed directly with a video camera. It was found that the nucleation and growth of phase-separated particle under microgravity are slower than in the case of 1-g, and the delay time of phase separation between the case of microgravity and 1-g depends on the flow rate of the melt under microgravity. These observations could be interpreted in terms of Marangoni convection and a change of diffusion.<br>
Journal
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- Journal of the Ceramic Society of Japan
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Journal of the Ceramic Society of Japan 113 (1321), 593-596, 2005
The Ceramic Society of Japan
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Details 詳細情報について
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- CRID
- 1390001205277225984
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- NII Article ID
- 110002292389
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- NII Book ID
- AN10040326
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- ISSN
- 18821022
- 09145400
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- NDL BIB ID
- 7468604
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed