| タイトル | Electrostriction of a Near-Critical Fluid in Microgravity |
| 本文（外部サイト） | http://hdl.handle.net/2060/20000004781 |
| 著者（英） | Moldover, Michael R.; Ferrell, Richard A.; Wilkinson, R. Allen; Zimmerli, Gregory A. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1999-01-01 |
| 言語 | eng |
| 内容記述 | We used interferometry to measure the electrostrictive increase of the density of sulfur hexaflouride (SF6) near its critical point. The results at three temperatures (T(sub c) + 5.0 mK, T(sub c) + 10.0 mK, T(sub c) + 30.0 mK with T(sub c) = 319 K) agree with a calculation based on the Clausius-Mossotti relation and the restricted cubic model equation of state. To measure electrostriction, an inhomogeneous electric field (less than or equal to 26 kV/cm) was applied to the SF6 sample by charging a fine wire that passed through it. These measurements were performed in microgravity so that the small electrostrictive density changes (less than or equal to 3.5 % in this work) would not be masked by the larger stratification of the fluid's density induced by the Earth's gravity. The predicted shifts of the critical temperature and density resulting from the electric field were too small to detect. |
| NASA分類 | Space Processing |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/95523 |
