Crystallization of Charged Colloids under Microgravity during Aircraft Parabolic Flights
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- TOMITA Yuki
- Nagoya City Univ.
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- SEKI Tomotaka
- Nagoya City Univ.
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- FUKAYA Nao
- Nagoya City Univ.
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- NISHIKAWA Suguru
- Nagoya City Univ.
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- SATO Naoko
- Nagoya City Univ.
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- IMAI Mami
- Nagoya City Univ.
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- SUKO Misato
- Nagoya City Univ.
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- TAKAKI Mio
- Nagoya City Univ.
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- AOYAMA Yurina
- Nagoya City Univ.
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- TOYOTAMA Akiko
- Nagoya City Univ.
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- OKUZONO Tohru
- Nagoya City Univ.
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- YAMANAKA Junpei
- Nagoya City Univ.
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- TSUKAMOTO Katsuo
- Osaka Univ.
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- INATOMI Yuko
- ISAS, JAXA,
抄録
We studied crystallization process of charged colloids under microgravity (µG) by performing time resolved reflection spectroscopy, during aircraft parabolic flight experiments. We used dilute colloidal silica samples (specific gravity of the particles = 2.1, the particle concentration = 1 – 2 vol.%) that crystallized from shear-melt colloids, within the duration time of µG (approximately 20 seconds). An influence of µG was found to be less significant for the heterogeneous nucleation process with the aid of the cell walls. The incubation times of the homogeneous nucleation, τ, at µG was longer than that at 1G. Furthermore, the half-widths of the Bragg diffraction peaks from the crystals were narrower by 30% at the largest, under µG. This suggests that the crystal grain size (cross-sectional area) became larger under µG environment, according to the Scherrer’s relation.
収録刊行物
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- International Journal of Microgravity Science and Application
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International Journal of Microgravity Science and Application 35 (3), 350303-, 2018
日本マイクログラビティ応用学会
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詳細情報 詳細情報について
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- CRID
- 1390002184853150080
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- NII論文ID
- 130007768947
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- ISSN
- 21889783
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可