Jeong Jinwon, Lee Jeong-Bong, Chung Sang Kug, Kim Daeyoung
Department of Mechanical Engineering, Myongji University, Yongin, 449-728, Republic of Korea.
Department of Electrical Engineering, The University of Texas at Dallas, Richardson, Texas 75080, USA.
Lab Chip. 2019 Oct 7;19(19):3261-3267. doi: 10.1039/c9lc00503j. Epub 2019 Sep 3.
In this paper, we report three-dimensional (3-D) liquid metal manipulation using electromagnets, which can be applied to electrical switching applications. The liquid metal droplet was coated with iron (Fe) particles by chemical reaction with hydrochloric acid (HCl), and thus it became responsive to the magnetic field, becoming a magnetic liquid metal marble. Using electromagnets, the magnetic field was turned on and off on-demand. We investigated an average velocity and the maximum working distance of the horizontal and vertical electromagnetic field-driven manipulation of the magnetic liquid metal marble. Linear (1-D) and plane (2-D) manipulation of the marble was successfully demonstrated and 3-D manipulation was verified for electrical switching.
在本文中，我们报告了利用电磁铁进行的三维（3-D）液态金属操控，其可应用于电气开关应用。通过与盐酸（HCl）发生化学反应，液态金属微滴表面包覆了铁（Fe）颗粒，从而使其对磁场产生响应，成为磁性液态金属弹珠。利用电磁铁，可按需开启和关闭磁场。我们研究了水平和垂直电磁场驱动的磁性液态金属弹珠操控的平均速度和最大工作距离。成功演示了弹珠的线性（1-D）和平面（2-D）操控，并验证了用于电气开关的3-D操控。
