Electrical field-driven ripening profiles of colloidal suspensions*

Project supported by the National Natural Science Foundation of China (Grant Nos. 11474345 and 11674043).

Wang Zi-Rui1, Wen Wei-Jia2, Liu Li-Yu1, †
       

(color online) Top and side views of ER fluid under different field strengths and top views after the software processing. The diameter of the glass microsphere is 0.5 μm and the volume fraction of the ER fluid is 0.15. Panels (a), (b), (c), and (d) have the same scale bar. ((a)–(d)) Morphologies of top views of ER fluid under 0, 300, 800, and 1500 V/mm, respectively; ((e)–(f)) Morphologies of side views of the ER structures respectively corresponding to panels (b) and (d); ((g)–(i)) parts of the red border in panels (b)–(d), which are processed by the software (ImageJ, National Institutes of Health), respectively. The yellow line indicates the column edge in the top view.