@inproceedings{oai:jaxa.repo.nii.ac.jp:00013327,
 author = {渡邉, 匡人 and 小澤, 俊平 and 水野, 章敏 and 日比谷, 孟俊 and 田川, 俊夫 and 樋口, 健介 and 塚田, 隆夫 and 福山, 博之 and 小畠, 秀和 and 田中, 敏宏 and 安田, 秀幸 and 景山, 大郎 and 石川, 毅彦 and Watanabe, Masahito and Ozawa, Shunpei and Mizuno, Akitoshi and Hibiya, Taketoshi and Tagawa, Toshio and Higuchi, Kensuke and Tsukada, Takao and Fukuyama, Hiroyuki and Kobatake, Hidekazu and Tanaka, Toshihiro and Yasuda, Hideyuki and Kageyama, Diro and Ishikawa, Takehiko and Fecht, Hans-Jurgen and Wunderlich, Rainer and Ricci, Enrica and Arato, ElizabettaDipartimento di Ingegneria Ambientale  Universita di Genova},
 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), Microgravity conditions have advantages of measurement of surface tension and viscosity of metallic liquids by the oscillating drop method with an electromagnetic levitation (EML) device. Recently, it has been identified that dependence of surface tension on oxygen partial pressure (Po(sub 2)) must be considered for industrial application of surface tension values. Effect of Po(sub 2) on surface tension would apparently change viscosity. Therefore, surface tension and viscosity must be measured simultaneously in the same atmospheric conditions. Moreover, effect of the electromagnetic force (EMF) on the surface oscillations must be clarified to obtain the ideal surface oscillation because the EMF works as the external damping force to the oscillating liquid droplets, so extensive EMF makes apparently the viscosity values large. In our working group (WG), using the parabolic flight levitation experimental facilities (PFLEX) the effects of Po(sub 2) and external EMF on surface oscillation of levitated liquid droplets are systematically investigated for the precise measurements of surface tension and viscosity of high temperature liquids. In this year we performed the observation of surface oscillations of levitated liquid Cu and Ag using PFLEX on board flight experiments by G-II operated by DAS. These observations were performed under the controlled Po(sub 2) conditions. In these experiments, we obtained the density, the viscosity and the surface tension values as same as reported data, and also obtained the difference of surface oscillations with the change of the Po(sub 2). On the basis of present experimental results, we discussed with European WG member in ESA-ESTEC at this December about the effect of Po(sub 2) on the surface of high-temperature liquids. We agreed to make a proposal of measurement of thermophysical prosperities of high-temperature liquid in controlled Po(sub 2) conditions for next ESA/JAXA-AO., 形態: カラー図版あり, 資料番号: AA0064297083},
 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 = {WG活動報告: 微小重力下での酸素分圧制御による金属性融体の表面張力測定},
 volume = {25},
 year = {2009}
}