磁性流体の界面変形現象に関する研究

概要

論文の詳細を見る
The interfacial phenomena of magnetic fluids subjected to a normal magnetic field are studied experimetally. To begin with, the effect of the shape and the dimension of the transparent containers on the interfacial phenomena is examined for two kinds of magnetic fluids, ferricolloid W-40 and ferricolloid HC-50. The cross-sectional shape of the container is made to be circular, square and hexagon. The dimension of the container is set to 55 mm, 70 mm and 85 mm. The critical magnetic induction values B_c calculated on the basis of present expriment are compared with those obtained from the theoretical analysis by Cowley & Rosensweig, where at these values of B_c the interfacial phenomena begin to be built up. Finally, on the hysteresis in generating the transition between 3 kinds of deformation modes on the interface, the present observation results are compared with those obtained from the analysis by A. Gailitis.
2000-11-25