Watanabe, Masahito, Adachi, Masayoshi, Aoyagi, Tomoo, Mizuno, Akitoshi, Shigemasa, Gaku, Shibutani, Ryuichi, Ozawa, Shunpei, Takenaga, Noriaki, Okubo, Norihisa, and Higuchi, Kensuke
Microgravity conditions have advantages of measurement of the surface tension and the viscosity of metallic alloys by the oscillating drop method with an ElectroMagnetic Levitation (EML) device. However, in Japan we have no facilities of measurement of these thermophysical properties of high temperature melts under microgravity conditions. Therefore, we rearrange the Parabolic Flight Levitation Experiment Facility (PFLEX) devices for measurements of thermophysical properties of them under the microgravity conditions. We succeeded to measure surface oscillation of levitated liquid droplets using PFLEX on bad flight experiments performed from September 17-29, 2007 operated by DAS (Diamond Air Service). In these experiments, we obtained not only the thermophysical properties of Cu melts but the effects of electromagnetic force for levitation on the surface oscillation. Base on this result, we are planning next parabolic flight experiments to study of oxygen effects on surface tension, and also to perform more precise measurements of surface oscillation in order to improve analysis method the surface oscillation spectra. If we will succeed this approach, we will be able to measure high temperature, reactive alloys such as Ti based alloys which is planning to use next generation materials for turbine brads of the jet engine and the power plants., 資料番号: AA0063706007