@inproceedings{oai:jaxa.repo.nii.ac.jp:00013325,
 author = {曽我見, 郁夫 and 愿山, 毅 and 谷川, 正幸 and 河北, 秀世 and 篠原, 忠臣 and 岡, 英雄 and 石川, 正道 and 木暮, 和美 and Sogami, Ikuo and Yoshiyama, Tsuyoshi and Tanigawa, Masayuki and Kawakita, Hideyo and Shinohara, Tadatomi and Oka, Hideo and Ishikawa, Masamichi and Kogure, Kazumi},
 book = {宇宙利用シンポジウム, Space Utilization Research: Proceedings of Space Utilization Symposium},
 month = {Mar},
 note = {第25回宇宙利用シンポジウム(2009年1月14日-15日, 宇宙航空研究開発機構宇宙科学研究本部相模原キャンパス), The Twenty-fifth Space Utilization Symposium (January 14-15, 2009: ISAS/JAXA Sagamihara, Japan), Colloidal crystals can be formed of silica particles while those of titania particles are not known under the normal gravitational field, because of their high specific gravity. We found by the Kikuchi-Kossel diffraction technique that, when silica particles (diameter 170 nm; density 2.2 g/cm3) are mixed with titania particles (diameter 127 nm; density 3.9 g/cm3), colloidal crystals are formed. Colloidal crystals started out with bcc structure and changed to fcc structures after about 60 days. Transitions began from the bottom of the container. Thus, the transitions are considered to be due to gravitational sedimentation. It is significant that the crystal growth process, which has not been observed in one-component dispersions of the silica particles, was found using titania particles with a wide range of the practical applicability., 資料番号: AA0064297081},
 publisher = {宇宙航空研究開発機構宇宙科学研究本部, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)},
 title = {シリカ粒子とチタニア粒子の混合系におけるシリカコロイド結晶の重力沈降効果},
 volume = {25},
 year = {2009}
}