Abstract

Specific features of small-angle light scattering by aqueous magnetic emulsions under the action of a magnetic field and a hydrodynamic field of a rotating fluid have been investigated. It has been shown that the experimentally observed diffraction lines that have no pronounced maxima and minima are due to diffraction on an irregular system of droplet chains arising in the magnetic field. Under the combined action of the magnetic and hydrodynamic fields, a rotation of a diffraction line is observed. This phenomenon has been interpreted using the known models of orientation of extended particles having complex shapes. It has been shown that the experimental nonlinear dependence of the rotation angle of a droplet chain on the angular rate of fluid rotation may be explained by S-shaped deformations of a chain.

中文翻译：

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高界面张力的磁性乳剂中的光衍射

摘要

研究了在旋转流体的磁场和流体动力场的作用下，水性磁性乳剂产生的小角度光散射的特定特征。已经显示，实验观察到的没有明显的最大值和最小值的衍射线是由于在磁场中产生的不规则液滴链上的衍射所致。在磁场和流体动力场的共同作用下，观察到衍射线的旋转。已经使用具有复杂形状的延伸颗粒的取向的已知模型解释了该现象。已经表明，液滴链的旋转角度对流体旋转角速度的实验非线性依赖性可以通过链的S形变形来解释。